0
+86-755-83210559 ext. 811
TOP
Contact Us
SalesDept@heisener.com +86-755-83210559 ext. 811
Language Translation
  • • English
  • • Español
  • • Deutsch
  • • Français
  • • Italiano
  • • Nederlands
  • • Português
  • • русский язык
  • • 日本語
  • • 한국어
  • • 简体中文
  • • 繁體中文

* Please refer to the English Version as our Official Version.

Change Country

If your country is not listed, please select International as your region.

  • International
Americas
  • Argentina
  • Brasil
  • Canada
  • Chile
  • Colombia
  • Costa Rica
  • Dominican Republic
  • Ecuador
  • Guatemala
  • Honduras
  • Mexico
  • Peru
  • Puerto Rico
  • United States
  • Uruguay
  • Venezuela
Asia/Pacific
  • Australia
  • China
  • Hong Kong
  • Indonesia
  • Israel
  • India
  • Japan
  • Korea, Republic of
  • Malaysia
  • New Zealand
  • Philippines
  • Singapore
  • Thailand
  • Taiwan
  • Vietnam
Europe
  • Austria
  • Belgium
  • Bulgaria
  • Switzerland
  • Czech Republic
  • Germany
  • Denmark
  • Estonia
  • Spain
  • Finland
  • France
  • United Kingdom
  • Greece
  • Croatia
  • Hungary
  • Ireland
  • Italy
  • Netherlands
  • Norway
  • Poland
  • Portugal
  • Romania
  • Russian Federation
  • Sweden
  • Slovakia
  • Turkey

ICL7106CPLZ

hot ICL7106CPLZ

ICL7106CPLZ

For Reference Only

Part Number ICL7106CPLZ
Manufacturer Renesas Electronics America
Description IC ADC 3.5DIGIT LCD/LED LP 40DIP
Datasheet ICL7106CPLZ Datasheet
Package 40-DIP (0.600", 15.24mm)
In Stock 842 piece(s)
Unit Price $ 9.59 *
Please request a real-time quote with our sales team. The unit price would influenced by the quantity requested and the supply sources. Thank you!
Lead Time Can Ship Immediately
Estimated Delivery Time Dec 12 - Dec 17 (Choose Expedited Shipping)
Winter Hot Sale

* Free Shipping * Up to $100 Discount

Winter Hot Sale

Request for Quotation

ICL7106CPLZ

Quantity
  • We are offering ICL7106CPLZ for competitive price in the global market, please send us a quota request for pricing. Thank you!
  • To process your RFQ, please add ICL7106CPLZ with quantity into BOM. Heisener.com does NOT require any registration to request a quote of ICL7106CPLZ.
  • To learn about the specification of ICL7106CPLZ, please search the datasheet by clicking the link above. If you couldn't find the correct datasheet, please refer to the manufacturer's official datasheet.
Payment Methods
Delivery Services

Do you have any question about ICL7106CPLZ?

+86-755-83210559 ext. 811 SalesDept@heisener.com heisener007 2354944915 Send Message

Certified Quality

Heisener's commitment to quality has shaped our processes for sourcing, testing, shipping, and every step in between. This foundation underlies each component we sell.

ISO9001:2015, ICAS, IAF, UKAS

View the Certificates

ICL7106CPLZ Specifications

ManufacturerRenesas Electronics America
CategoryIntegrated Circuits (ICs) - Data Acquisition - ADCs/DACs - Special Purpose
Datasheet ICL7106CPLZ Datasheet
Package40-DIP (0.600", 15.24mm)
Series-
TypeDisplay Driver
Number of Channels2
Resolution (Bits)3.5 Digit
Voltage Supply SourceSingle Supply
Voltage - Supply5V
Operating Temperature0°C ~ 70°C
Mounting TypeThrough Hole
Package / Case40-DIP (0.600", 15.24mm)
Supplier Device Package40-DIP

ICL7106CPLZ Datasheet

Page 1

Page 2

FN3082 Rev 9.00 October 24, 2014 ICL7106, ICL7107, ICL7107S 31/2 Digit, LCD/LED Display, A/D Converters DATASHEETThe Intersil ICL7106 and ICL7107 are high performance, low power, 31/2 digit A/D converters. Included are seven segment decoders, display drivers, a reference, and a clock. The ICL7106 is designed to interface with a liquid crystal display (LCD) and includes a multiplexed backplane drive; the ICL7107 will directly drive an instrument size light emitting diode (LED) display. The ICL7106 and ICL7107 bring together a combination of high accuracy, versatility, and true economy. It features auto zero to less than 10µV, zero drift of less than 1µV/°C, input bias current of 10pA (max) and rollover error of less than one count. True differential inputs and reference are useful in all systems, but give the designer an uncommon advantage when measuring load cells, strain gauges and other bridge type transducers. Finally, the true economy of single power supply operation (ICL7106), enables a high performance panel meter to be built with the addition of only 10 passive components and a display. Features • Guaranteed zero reading for 0V input on all scales • True polarity at zero for precise null detection • 1pA typical input current • True differential input and reference, direct display drive - LCD ICL7106, LED lCL7107 • Low noise - less than 15µVP-P • On-chip clock and reference • Low power dissipation - typically less than 10mW • No additional active circuits required • Enhanced display stability • Pb-free (RoHS compliant) Ordering Information PART NUMBER (Note 2) PART MARKING TEMP. RANGE (°C) PACKAGE (Pb-Free) PKG. DWG. # ICL7106CPLZ ICL7106CPLZ 0 to 70 40 Ld PDIP (Note 3) E40.6 ICL7106CM44Z (Note 4) ICL7106 CM44Z 0 to 70 44 Ld MQFP Q44.10x10 ICL7106CM44ZT (Notes 4, 5) ICL7106 CM44Z 0 to 70 44 Ld MQFP Tape and Reel Q44.10x10 ICL7107CPLZ ICL7107CPLZ 0 to 70 40 Ld PDIP (Note 3) E40.6 ICL7107SCPLZ ICL7107SCPLZ 0 to 70 40 Ld PDIP (Notes 1, 3) E40.6 ICL7107CM44Z (Note 4) ICL7107 CM44Z 0 to 70 44 Ld MQFP Q44.10x10 ICL7107CM44ZT (Notes 4, 5) ICL7107 CM44Z 0 to 70 44 Ld MQFP Tape and Reel Q44.10x10 NOTES: 1. “S” indicates enhanced stability. 2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. 3. Pb-free PDIPs can be used for through hole wave solder processing only. They are not intended for use in Reflow solder processing applications. 4. For Moisture Sensitivity Level (MSL), please see product information page for ICL7106, ICL7107, ICL7107S. For more information on MSL, please see tech brief TB363. 5. Please refer to TB347 for details on reel specifications.FN3082 Rev 9.00 Page 1 of 17 October 24, 2014

Page 3

ICL7106, ICL7107, ICL7107SPin Configurations ICL7106, ICL7107, ICL7107S (PDIP) TOP VIEW ICL7106, ICL7107 (MQFP) TOP VIEW 13 1 2 3 4 5 6 7 8 9 10 11 12 14 15 16 17 18 19 20 V+ D1 C1 B1 A1 F1 G1 E1 D2 C2 B2 A2 F2 E2 D3 B3 F3 E3 (1000) AB4 POL 28 40 39 38 37 36 35 34 33 32 31 30 29 27 26 25 24 23 22 21 OSC 1 OSC 2 OSC 3 TEST REF HI REF LO CREF+ CREF- COMMON IN HI IN LO A-Z BUFF INT V- G2 (10’s) C3 A3 G3 BP/GND (1’s) (10’s) (100’s) (MINUS) (100’s) OSC 2 NC OSC 3 TEST NC NC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 OSC 1 V+ D1 C1 B1 A1 F1 G1 E1 D2 C2 28 27 26 25 24 23 2221201918 B2 A2 F2 E2 D3 B3 F3 E3 AB4 POL BP/GND 39 38 37 36 35 34 33 32 31 30 29 44 43 42 41 40 IN H I IN L O A -Z B U F F IN T V - NC G2 C3 A3 G3 R E F H I R E F L O C R E F + C R E F - C O M M O N FN3082 Rev 9.00 Page 2 of 17 October 24, 2014

Page 4

ICL7106, ICL7107, ICL7107SAbsolute Maximum Ratings Thermal Information Supply Voltage ICL7106, V+ to V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V ICL7107, V+ to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V ICL7107, V- to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -9V Analog Input Voltage (Either Input) (Note 6) . . . . . . . . . . . . . . . . . . . V+ to V- Reference Input Voltage (Either Input). . . . . . . . . . . . . . . . . . . . . . . . V+ to V- Clock Input ICL7106 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TEST to V+ ICL7107 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GND to V+ Operating Conditions Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C Thermal Resistance (Typical) JA ( oC/W) PDIP Package (Note 7) . . . . . . . . . . . . . . . . . . . . . . . . . . 50 MQFP Package (Note 7) . . . . . . . . . . . . . . . . . . . . . . . . . 75 Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . .+150°C Maximum Storage Temperature Range . . . . . . . . . . . . . .-65°C to +150°C Pb-Free Reflow Profile (MQFP Package only) . . . . . . . . . . . . . . . see TB493 NOTE: Pb-free PDIPs can be used for through hole wave solder processing only. They are not intended for use in Reflow solder processing applications. CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and result in failures not covered by warranty. NOTES: 6. Input voltages may exceed the supply voltages provided the input current is limited to ±100µA. 7. JA is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details. Electrical Specifications (Note 8) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SYSTEM PERFORMANCE Zero Input Reading VIN = 0.0V, full scale = 200mV -000.0 000.0 +000.0 Digital Reading Stability (Last Digit) (ICL7107S Only) Fixed input voltage (Note 11) -000.0 000.0 +000.0 Digital Reading Ratiometric Reading VlN = VREF, VREF = 100mV 999 999/1000 1000 Digital Reading Rollover Error -VIN = +VlN  200mV Difference in reading for equal positive and negative inputs near full scale - ±0.2 ±1 Counts Linearity Full scale = 200mV or full scale = 2V maximum deviation from best straight line fit (Note 10) - ±0.2 ±1 Counts Common Mode Rejection Ratio VCM = 1V, VIN = 0V, full scale = 200mV (Note 10) - 50 - µV/V Noise VIN = 0V, full scale = 200mV (peak-to-peak value not exceeded 95% of time) - 15 - µV Leakage Current Input VlN = 0 (Note 10) - 1 10 pA Zero Reading Drift VlN = 0, 0°C to +70°C (Note 10) - 0.2 1 µV/°C Scale Factor Temperature Coefficient VIN = 199mV, 0°C to +70°C, (ext. ref. 0ppm/×°C) (Note 10) - 1 5 ppm/°C End Power Supply Character V+ Supply Current VIN = 0 (does not include LED current for ICL7107) - 1.0 1.8 mA End Power Supply Character V- Supply Current ICL7107 Only - 0.6 1.8 mA COMMON Pin Analog Common Voltage 25kΩ between common and positive supply (with respect to + supply) 2.4 3.0 3.2 V Temperature Coefficient of Analog Common 25kΩ between common and positive supply (with respect to + supply) - 80 - ppm/°C DISPLAY DRIVER ICL7106 ONLY Peak-to-Peak Segment Drive Voltage Peak-to-Peak Backplane Drive Voltage V+ = to V- = 9V (Note 9) 4 5.5 6 VFN3082 Rev 9.00 Page 3 of 17 October 24, 2014

Page 5

ICL7106, ICL7107, ICL7107SDISPLAY DRIVER ICL7107 ONLY Segment Sinking Current V+ = 5V, segment voltage = 3V Except Pins AB4 and POL 5 8 - mA Pin AB4 Only 10 16 - mA Pin POL Only 4 7 - mA NOTES: 8. Unless otherwise noted, specifications apply to both the ICL7106 and ICL7107 at TA = +25°C, fCLOCK = 48kHz. ICL7106 is tested in the circuit of Figure 1. ICL7107 is tested in the circuit of Figure 2. 9. Back plane drive is in phase with segment drive for “off” segment, 180 degrees out of phase for “on” segment. Frequency is 20 times conversion rate. Average DC component is less than 50mV. 10. Limit is not production tested. The maximum was established via characterization and/or design simulations. 11. Sample tested. Typical Applications and Test Circuits FIGURE 1. ICL7106 TEST CIRCUIT AND TYPICAL APPLICATION WITH LCD DISPLAY COMPONENTS SELECTED FOR 200mV FULL SCALE FIGURE 2. ICL7107 TEST CIRCUIT AND TYPICAL APPLICATION WITH LED DISPLAY COMPONENTS SELECTED FOR 200mV FULL SCALE Electrical Specifications (Note 8) (Continued) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT 1 31 2 3 4 5 6 7 8 9 1 0 11 1 2 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 8 4 0 3 9 3 8 3 7 3 6 3 5 3 4 3 3 3 2 3 1 3 0 2 9 2 7 2 6 2 5 2 4 2 3 2 2 2 1 V + D 1 C 1 B 1 A 1 F 1 G 1 E 1 D 2 C 2 B 2 A 2 F 2 E 2 D 3 B 3 F 3 E 3 A B 4 P O L O S C 1 O S C 2 O S C 3 T E S T R E F H I R E F L O C R E F + C R E F - C O M IN H I IN L O A -Z B U F F IN T V - G 2 C 3 A 3 G 3 B P DISPLAY DISPLAY C1 C2 C3 C4 R3 R1 R4 C5 + - IN R5 R2 9V ICL7106 C1 = 0.1µF C2 = 0.47µF C3 = 0.22µF C4 = 100pF C5 = 0.02µF R1 = 24kΩ R2 = 47kΩ R3 = 100kΩ R4 = 1kΩ R5 = 1MΩ + - 131 2 3 4 5 6 7 8 9 10 11 12 14 15 16 17 18 19 20 2 8 4 0 3 9 3 8 3 7 3 6 3 5 3 4 3 3 3 2 3 1 3 0 2 9 2 7 2 6 2 5 2 4 2 3 2 2 2 1 V + D 1 C 1 B 1 A 1 F 1 G 1 E 1 D 2 C 2 B 2 A 2 F 2 E 2 D 3 B 3 F 3 E 3 A B 4 P O L O S C 1 O S C 2 O S C 3 T E S T R E F H I R E F L O C R E F + C R E F - C O M IN H I IN L O A -Z B U F F IN T V - G 2 C 3 A 3 G 3 G N D DISPLAY DISPLAY C1 C2 C3 C4 R3 R1 R4 C5 + - IN R5 R2 ICL7107 +5V -5V C1 = 0.1µF C2 = 0.47µF C3 = 0.22µF C4 = 100pF C5 = 0.02µF R1 = 24kΩ R2 = 47kΩ R3 = 100kΩ R4 = 1kΩ R5 = 1MΩFN3082 Rev 9.00 Page 4 of 17 October 24, 2014

Page 6

ICL7106, ICL7107, ICL7107STypical Integrator Amplifier Output Waveform (INT Pin) Design Information Summary Sheet • OSCILLATOR FREQUENCY fOSC = 0.45/RC COSC > 50pF; ROSC > 50kΩ fOSC (Typ) = 48kHz • OSCILLATOR PERIOD tOSC = RC/0.45 • INTEGRATION CLOCK FREQUENCY fCLOCK = fOSC/4 • INTEGRATION PERIOD tINT = 1000 x (4/fOSC) • 60/50Hz REJECTION CRITERION tINT/t60Hz or tlNT/t60Hz = Integer • OPTIMUM INTEGRATION CURRENT IINT = 4µA • FULL SCALE ANALOG INPUT VOLTAGE VlNFS (Typ) = 200mV or 2V • INTEGRATE RESISTOR • INTEGRATE CAPACITOR • INTEGRATOR OUTPUT VOLTAGE SWING • VINT MAXIMUM SWING: (V- + 0.5V) < VINT < (V+ - 0.5V), VINT (Typ) = 2V • DISPLAY COUNT • CONVERSION CYCLE tCYC = tCL0CK x 4000 tCYC = tOSC x 16,000 when fOSC = 48kHz; tCYC = 333ms • COMMON MODE INPUT VOLTAGE (V- + 1V) < VlN < (V+ - 0.5V) • AUTO-ZERO CAPACITOR 0.01µF < CAZ < 1µF • REFERENCE CAPACITOR 0.1µF < CREF < 1µF • VCOM Biased between Vi and V-. • VCOM  V+ - 2.8V Regulation lost when V+ to V- < 6.8V If VCOM is externally pulled down to (V+ to V-)/2, the VCOM circuit will turn off. • ICL7106 POWER SUPPLY: SINGLE 9V V+ - V- = 9V Digital supply is generated internally VGND  V+ - 4.5V • ICL7106 DISPLAY: LCD Type: Direct drive with digital logic supply amplitude. • ICL7107 POWER SUPPLY: DUAL ±5.0V V+ = +5V to GND V- = -5V to GND Digital Logic and LED driver supply V+ to GND • ICL7107 DISPLAY: LED Type: Nonmultiplexed Common Anode RINT VINFS IINT ----------------= CINT tINT  IINT  VINT -------------------------------= VINT tINT  IINT  CINT -------------------------------= COUNT 1000 VIN VREF --------------= AUTO ZERO PHASE (COUNTS) 2999 - 1000 SIGNAL INTEGRATE PHASE FIXED 1000 COUNTS DEINTEGRATE PHASE 0 - 1999 COUNTS TOTAL CONVERSION TIME = 4000 x tCLOCK = 16,000 x tOSCFN3082 Rev 9.00 Page 5 of 17 October 24, 2014

Page 7

ICL7106, ICL7107, ICL7107SDetailed Description Analog Section Figure 3 shows the analog section for the ICL7106 and ICL7107. Each measurement cycle is divided into three phases. They are (1) auto-zero (A-Z), (2) signal integrate (INT) and (3) deintegrate (DE). Auto-Zero Phase During auto-zero three things happen. First, input high and low are disconnected from the pins and internally shorted to analog COMMON. Second, the reference capacitor is charged to the reference voltage. Third, a feedback loop is closed around the system to charge the auto-zero capacitor CAZ to compensate for offset voltages in the buffer amplifier, integrator, and comparator. Since the comparator is included in the loop, the A-Z accuracy is limited only by the noise of the system. In any case, the offset referred to the input is less than 10µV. Signal Integrate Phase During signal integrate, the auto-zero loop is opened, the internal short is removed, and the internal input high and low are connected to the external pins. The converter then integrates the differential voltage between IN HI and IN LO for a fixed time. This differential voltage can be within a wide common mode range: up to 1V from either supply. If, on the other hand, the input signal has no return with respect to the converter power supply, IN LO can be tied to analog COMMON to establish the correct common mode voltage. At the end of this phase, the polarity of the integrated signal is determined. Deintegrate Phase The final phase is deintegrate, or reference integrate. Input low is internally connected to analog COMMON and input high is connected across the previously charged reference capacitor. Circuitry within the chip ensures that the capacitor will be connected with the correct polarity to cause the integrator output to return to zero. The time required for the output to return to zero is proportional to the input signal. Specifically the digital reading displayed is: Differential Input The input can accept differential voltages anywhere within the common mode range of the input amplifier, or specifically from 0.5V below the positive supply to 1V above the negative supply. In this range, the system has a CMRR of 86dB typical. However, care must be exercised to assure the integrator output does not saturate. A worst case condition would be a large positive common mode voltage with a near full scale negative differential input voltage. The negative input signal drives the integrator positive when most of its swing has been used up by the positive common mode voltage. For these critical applications the integrator output swing can be reduced to less than the recommended 2V full scale swing with little loss of accuracy. The integrator output can swing to within 0.3V of either supply without loss of linearity. Differential Reference The reference voltage can be generated anywhere within the power supply voltage of the converter. The main source of common mode error is a roll-over voltage caused by the reference capacitor losing or gaining charge to stray capacity on its nodes. If there is a large common mode voltage, the reference capacitor can gain charge (increase voltage) when called up to deintegrate a positive signal but lose charge (decrease voltage) when called up to deintegrate a negative input signal. This difference in reference for positive or negative input voltage will give a roll-over error. However, by selecting the reference capacitor such that it is large enough in comparison to the stray capacitance, this error can be held to less than 0.5 count worst case. (see “Component Value Selection” on page 10.) DISPLAY COUNT = 1000 VIN VREF --------------       (EQ. 1) FIGURE 3. ANALOG SECTION OF ICL7106 AND ICL7107 DE-DE+ CINTCAZRINT BUFFER A-Z INT - + A-Z COMPARATOR IN HI COMMON IN LO 31 32 30 DE- DE+INT A-Z 34 CREF+ 36 REF HI CREF REF LO 35 A-Z A-Z 33 CREF- 28 29 27 TO DIGITAL SECTION A-Z AND DE(±) INTEGRATOR INT STRAY STRAY V+ 10A V- N INPUT HIGH 2.8V 6.2V V+ 1 INPUT LOW - +-+ - + FN3082 Rev 9.00 Page 6 of 17 October 24, 2014

Page 8

ICL7106, ICL7107, ICL7107SAnalog COMMON This pin is included primarily to set the common mode voltage for battery operation (ICL7106) or for any system where the input signals are floating with respect to the power supply. The COMMON pin sets a voltage that is approximately 2.8V more negative than the positive supply. This is selected to give a minimum end-of-life battery voltage of about 6V. However, analog COMMON has some of the attributes of a reference voltage. When the total supply voltage is large enough to cause the zener to regulate (>7V), the COMMON voltage will have a low voltage coefficient (0.001%/V), low output impedance (15Ω), and a temperature coefficient typically less than 80ppm/×°C. The limitations of the on chip reference should also be recognized, however. With the ICL7107, the internal heating which results from the LED drivers can cause some degradation in performance. Due to their higher thermal resistance, plastic parts are poorer in this respect than ceramic. The combination of reference Temperature Coefficient (TC), internal chip dissipation, and package thermal resistance can increase noise near full scale from 25µV to 80µVP-P. Also the linearity in going from a high dissipation count such as 1000 (20 segments on) to a low dissipation count such as 1111(8 segments on) can suffer by a count or more. Devices with a positive TC reference may require several counts to pull out of an over-range condition. This is because over-range is a low dissipation mode, with the three least significant digits blanked. Similarly, units with a negative TC may cycle between overrange and a non-overrange count as the die alternately heats and cools. All these problems are of course eliminated if an external reference is used. The ICL7106, with its negligible dissipation, suffers from none of these problems. In either case, an external reference can easily be added, as shown in Figure 4. Analog COMMON is also used as the input low return during auto-zero and deintegrate. If IN LO is different from analog COMMON, a common mode voltage exists in the system and is taken care of by the excellent CMRR of the converter. However, in some applications IN LO will be set at a fixed known voltage (power supply common for instance). In this application, analog COMMON should be tied to the same point, thus removing the common mode voltage from the converter. The same holds true for the reference voltage. If reference can be conveniently tied to analog COMMON, it should be since this removes the common mode voltage from the reference system. Within the lC, analog COMMON is tied to an N-Channel FET that can sink approximately 30mA of current to hold the voltage 2.8V below the positive supply (when a load is trying to pull the common line positive). However, there is only 10µA of source current, so COMMON may easily be tied to a more negative voltage thus overriding the internal reference. TEST The TEST pin serves two functions. On the ICL7106 it is coupled to the internally generated digital supply through a 500Ω resistor. Thus, it can be used as the negative supply for externally generated segment drivers such as decimal points or any other presentation the user may want to include on the LCD display. Figures 5 and 6 show such an application. No more than a 1mA load should be applied. The second function is a “lamp test”. When TEST is pulled high (to V+) all segments will be turned on and the display should read “1888”. The TEST pin will sink about 15mA under these conditions. CAUTION: In the lamp test mode, the segments have a constant DC voltage (no square-wave). This may burn the LCD display if maintained for extended periods. FIGURE 4A. FIGURE 4B. FIGURE 4. USING AN EXTERNAL REFERENCE ICL7106 V REF LO ICL7107 REF HI V+ V- 6.8V ZENER IZ ICL7106 V REF HI REF LO COMMON V+ ICL8069 1.2V REFERENCE 6.8kΩ 20kΩ ICL7107 ICL7106 V+ BP TEST 21 37 TO LCD BACKPLANE TO LCD DECIMAL POINT 1MΩ FIGURE 5. SIMPLE INVERTER FOR FIXED DECIMAL POINTFN3082 Rev 9.00 Page 7 of 17 October 24, 2014

Page 9

ICL7106, ICL7107, ICL7107SDigital Section Figures 7 and 8 show the digital section for the ICL7106 and ICL7107, respectively. In the ICL7106, an internal digital ground is generated from a 6V Zener diode and a large P-Channel source follower. This supply is made stiff to absorb the relatively large capacitive currents when the back plane (BP) voltage is switched. The BP frequency is the clock frequency divided by 800. For three readings/sec., this is a 60Hz square wave with a nominal amplitude of 5V. The segments are driven at the same frequency and amplitude and are in phase with BP when OFF, but out of phase when ON. In all cases negligible DC voltage exists across the segments. Figure 8 is the Digital Section of the ICL7107. It is identical to the ICL7106 except that the regulated supply and back plane drive have been eliminated and the segment drive has been increased from 2mA to 8mA, typical for instrument size common anode LED displays. Since the 1000 output (pin 19) must sink current from two LED segments, it has twice the drive capability or 16mA. In both devices, the polarity indication is “on” for negative analog inputs. If IN LO and IN HI are reversed, this indication can be reversed also, if desired. ICL7106 V+ BP TEST DECIMAL POINT SELECT CD4030 GND V+ TO LCD DECIMAL POINTS FIGURE 6. EXCLUSIVE ‘OR’ GATE FOR DECIMAL POINT DRIVE 7 SEGMENT DECODE SEGMENT OUTPUT 0.5mA 2mA INTERNAL DIGITAL GROUND TYPICAL SEGMENT OUTPUT V+ LCD PHASE DRIVER LATCH 7 SEGMENT DECODE 200 LOGIC CONTROL INTERNAL VTH = 1V 7 SEGMENT DECODE 1000’s 100’s 10’s 1’s TO SWITCH DRIVERS FROM COMPARATOR OUTPUT DIGITAL GROUND 4 CLOCK 40 39 38 OSC 1 OSC 2 OSC 3 BACKPLANE 21 V+ TEST V- 500Ω 37 26 6.2V COUNTER COUNTER COUNTER COUNTER 1 c a b c d f g e a b a b c d f g e a b c d f g e † † THREE INVERTERS ONE INVERTER SHOWN FOR CLARITY FIGURE 7. ICL7106 DIGITAL SECTIONFN3082 Rev 9.00 Page 8 of 17 October 24, 2014

Page 10

ICL7106, ICL7107, ICL7107SSystem Timing Figure 9 shows the clocking arrangement used in the ICL7106 and ICL7107. Two basic clocking arrangements can be used: 1. Figure 9A. An external oscillator connected to pin 40. 2. Figure 9B. An R-C oscillator using all three pins. The oscillator frequency is divided by four before it clocks the decade counters. It is then further divided to form the three convert-cycle phases. These are signal integrate (1000 counts), reference deintegrate (0 to 2000 counts) and auto-zero (1000 to 3000 counts). For signals less than full scale, auto-zero gets the unused portion of reference de-integrate. This makes a complete measure cycle of 4,000 counts (16,000 clock pulses) independent of input voltage. For three readings/second, an oscillator frequency of 48kHz would be used. To achieve maximum rejection of 60Hz pickup, the signal integrate cycle should be a multiple of 60Hz. Oscillator frequencies of 240kHz, 120kHz, 80kHz, 60kHz, 48kHz, 40kHz, 331/3kHz, etc., should be selected. For 50Hz rejection, oscillator frequencies of 200kHz, 100kHz, 662/3kHz, 50kHz, 40kHz, etc., would be suitable. Note that 40kHz (2.5 readings/second) will reject both 50Hz and 60Hz (also 400Hz and 440Hz). 7 SEGMENT DECODE TO SEGMENT 0.5mA 8mA DIGITAL GROUND TYPICAL SEGMENT OUTPUT V+ LATCH 7 SEGMENT DECODE LOGIC CONTROL 7 SEGMENT DECODE 1000’s 100’s 10’s 1’s TO SWITCH DRIVERS FROM COMPARATOR OUTPUT DIGITAL GROUND 4 CLOCK 40 39 38 OSC 1 OSC 2 OSC 3 V+ TEST 500Ω COUNTER COUNTER COUNTER COUNTER 1 V+ 37 27 c a b c d f g e a b a b c d f g e a b c d f g e † † THREE INVERTERS ONE INVERTER SHOWN FOR CLARITY FIGURE 8. ICL7107 DIGITAL SECTION CLOCK INTERNAL TO PART 40 39 38 GND ICL7107 4 CLOCK INTERNAL TO PART 40 39 38 4 RC OSCILLATOR R C TEST ICL7106 FIGURE 9B. FIGURE 9. CLOCK CIRCUITS FIGURE 9A.FN3082 Rev 9.00 October 24, 2014Page 9 of 17

ICL7106CPLZ Guarantees

Service Guarantee

Service Guarantees

We guarantee 100% customer satisfaction.

Our experienced sales team and tech support team back our services to satisfy all our customers.

Quality Guarantee

Quality Guarantees

We provide 90 days warranty.

If the items you received were not in perfect quality, we would be responsible for your refund or replacement, but the items must be returned in their original condition.

ICL7106CPLZ Related Products

hotICL7106CPLZ ICL7650CSD Maxim Integrated, IC OPAMP CHOPPER 2MHZ 14SOIC, 14-SOIC (0.154", 3.90mm Width), - View
hotICL7106CPLZ ICL3222IA-T Intersil, IC 2DRVR/2RCVR RS232 3V 20-SSOP, 20-SSOP (0.209", 5.30mm Width), - View
hotICL7106CPLZ ICL3222ECA-T Intersil, IC 2DRVR/2RCVR RS232 3V 20-SSOP, 20-SSOP (0.209", 5.30mm Width), - View
hotICL7106CPLZ ICL3224ECAZ-T Intersil, IC 2DRVR/2RCVR RS232 3V 20-SSOP, 20-SSOP (0.209", 5.30mm Width), - View
hotICL7106CPLZ DF3024F25V Renesas Electronics America, IC MCU 16BIT 128KB FLASH 100QFP, 100-BFQFP, - View
hotICL7106CPLZ UPD70F3736GK-GAK-AX Renesas Electronics America, IC MCU 32BIT 256KB FLASH 80LQFP, 80-LQFP, - View
hotICL7106CPLZ ISL43741IR-T Renesas Electronics America, IC MUX/DEMUX DUAL 4X1 20QFN, 20-VFQFN Exposed Pad, - View
hotICL7106CPLZ ICL7660SCBA Renesas Electronics America, IC REG SWTCHD CAP INV 45MA 8SOIC, 8-SOIC (0.154", 3.90mm Width), - View
hotICL7106CPLZ ICL3245ECVZ-T Renesas Electronics America, IC TXRX 3/5 RS232 FULL 28TSSOP, 28-TSSOP (0.173", 4.40mm Width), - View
hotICL7106CPLZ ICL3226IA-T Renesas Electronics America, IC TXRX 1/1 RS232 16SSOP, 16-SSOP (0.209", 5.30mm Width), - View
hotICL7106CPLZ ICL3221ECAZA-T Renesas Electronics America, IC TXRX SGL RS232 3-5.5V 16SSOP, 16-SSOP (0.209", 5.30mm Width), - View
hotICL7106CPLZ ICL3217ECB Renesas Electronics America, IC TXRX RS-232 3-5.5V ESD 24SOIC, 24-SOIC (0.295", 7.50mm Width), - View

ICL7106CPLZ Tags

  • ICL7106CPLZ
  • ICL7106CPLZ PDF
  • ICL7106CPLZ datasheet
  • ICL7106CPLZ specification
  • ICL7106CPLZ image
  • Renesas Electronics America
  • Renesas Electronics America ICL7106CPLZ
  • buy ICL7106CPLZ
  • ICL7106CPLZ price
  • ICL7106CPLZ distributor
  • ICL7106CPLZ supplier
  • ICL7106CPLZ wholesales

ICL7106CPLZ is Available in