AD7606BSTZ DAS: Working Principle, Pin Configuration and Datasheet

AD7606BSTZ Introduction

The AD7606BSTZ is a 16-bit, simultaneous-sampling data acquisition system (DAS) that can handle up to eight channels. It features analog input clamp protection, second-order antialiasing filters, track-and-hold amplifiers, and 16-bit successive approximation ADCs. Additionally, it integrates a flexible digital filter, a 2.5 V reference and buffer, as well as high-speed serial and parallel interfaces. The device operates from a single 5 V supply, supporting true bipolar ±10 V and ±5 V input signals with sampling rates up to 200 kSPS for all channels.

AD7606BSTZ Working Principle

The AD7606BSTZ works by taking multiple analog input signals and converting them into digital data simultaneously for each channel. It starts with input protection to safely handle high voltage ranges. Next, it filters out unwanted noise using a second-order antialiasing filter. The track-and-hold amplifier captures and holds the signal steady during conversion. The key part is the 16-bit successive approximation register (SAR) ADC, which quickly digitizes the held signal for each channel. The digital data is then optionally processed through a digital filter to improve quality before being output through parallel or serial interfaces.

AD7606BSTZ Pin Configuration

Color legend:

- Orange: Analog Input

- Yellow: Decoupling Cap Pin

- Red: Power Supply

- Blue: Ground Pin

- Dark Green: Data Output

- Light Green: Digital Input

- White: Reference Input/Output

AD7606BSTZ Symbol

AD7606BSTZ Footprint

AD7606BSTZ 3D Model

AD7606BSTZ Functional Block Diagram

The functional block diagram of the AD7606BSTZ shows how the device processes multiple analog input signals. Each of the eight differential analog input channels (V1–V8) passes through a clamp circuit, input buffer (PGA), and a second-order low-pass filter to reduce noise and unwanted frequencies. These analog signals are then multiplexed by an 8:1 multiplexer, which selects one channel at a time to feed into the 16-bit successive approximation ADC (SAR ADC). This setup ensures high-precision digitization of each input channel.

After the SAR ADC converts the analog signal to a 16-bit digital value, the data flows through a digital filter, which can be used to improve performance in noisy environments. The digital output is sent to a flexible parallel/serial interface, allowing the device to be configured for either parallel or serial data output. Control inputs like CONVST A/B, RESET, RANGE, and others configure the ADC's operating mode, while power and reference circuitry (e.g., REFCAP, REFIN/REFOUT) support stable operation. Overall, this integrated design makes the AD7606BSTZ simultaneous sampling of up to eight channels.

AD7606BSTZ Specification

AD7606BSTZ Features

8/6/4 simultaneously sampled inputs

True bipolar analog input ranges: ±10 V, ±5 V

Pin to pin compatible with the state-of-the-art AD7606B

Single 5 V analog supply and 2.3 V to 5 V VDRIVE

Fully integrated data acquisition solution

Analog input clamp protection

Input buffer with 1 MΩ analog input impedance

Second-order antialiasing analog filter

On-chip accurate reference and reference buffer

16-bit ADC with 200 kSPS on all channels

Oversampling capability with digital filter

Flexible parallel/serial interface

SPI/QSPI™/MICROWIRE™/DSP compatible

7 kV ESD rating on analog input channels

95.5 dB SNR, −107 dB THD

±0.5 LSB INL, ±0.5 LSB DNL

Low power: 100 mW

Standby mode: 25 mW

64-lead LQFP package

AD7606BSTZ Applications

Power Quality Monitoring

Industrial Automation

Instrumentation

Vibration Analysis

Medical Devices

AD7606BSTZ vs. AD7606BSTZ-4 vs. AD7606BSTZ-6 vs. AD7606BSTZ-RL

AD7606BSTZ Datasheet

Datasheet PDF(https://dir.heisener.com/DatasheetDownload/AD7606BSTZ-RL.pdf)

AD7606BSTZ Package

FAQs

What is AD7606BSTZ?

It is a 16-bit, 8-channel, simultaneous sampling analog-to-digital converter (ADC) designed by Analog Devices, commonly used for precision data acquisition.

Does AD7606BSTZ support simultaneous sampling on all channels?

Yes, all 8 channels are sampled simultaneously, making it suitable for synchronous measurements.

What are typical applications of the AD7606BSTZ?

Typical applications include industrial process control, power monitoring, motor control, and data acquisition systems.