AD7608

8-Channel DAS with 18-Bit, Bipolar, Simultaneous Sampling ADC
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Product Details

The AD7608 is an 18-bit, 8 channel, simultaneous sampling Analog-to-Digital Data Acquisition system (DAS). The part contains analog input clamp protection, 2nd order anti-alias filter, track and hold amplifier, 18-bit charge redistribution successive approximation ADC, flexible digital filter, 2.5V reference and reference buffer and high speed serial and parallel interfaces. 

The AD7608 operates from a single 5V supply and can accommodate ± 10V and ±5V true bipolar input signals while sampling at throughput rates up to 200 kSPS for all channels. The input clamp protection circuitry can tolerate voltages up to ±16.5V. The AD7608 has 1 MΩ analog input impedance regardless of sampling frequency. The single supply operation, on chip filtering and high input impedance eliminates the need for driver op-amps and external bipolar supplies. The AD7608 antialias filter has a 3 dB cut off frequency of 22 kHz and provides 40 dB anti-alias rejection when sampling at 200ksps. The flexible digital filter is pin driven, yields improvements in SNR, and reduces the 3 dB bandwidth.

Applications

  • Power line monitoring and protection systems
  • Multiphase Motor Control
  • Instrumentation and control systems
  • Multi-axis positioning systems
  • Data Acquisition Systems


Product Lifecycle

checked Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits

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Product Details

The EVAL-AD7608EDZ is a fully featured evaluation Kit for the AD7608. This board operates in stand alone mode or in conjunction with the Converter Evaluation and Development board, EVAL-CED1Z . When operated with the Converter Evaluation and Development board, software is provided enabling the user to perform detailed analysis of the ADC's performance. This software includes the technical note describing the operation and set up of the evaluation board in standalone operation or when operated with the Converter Evaluation and Development board.

Software & Systems Requirements

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Product Downloads

Product Recommendations

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AD7608 Companion Parts

Recommended Digital Isolators

  • For high performance, low power, bidirectional communication , we recommend the ADUM1402 .
  • For isolated power in 3.3V or 5V outputs , we recommend the ADUM5000 .
  • For high performance, low power, bidirectional communication with integrated isolated power , we recommend the ADUM5402 .

Recommended External 2.5V Voltage Reference

  • For high accuracy, low noise and excellent long term stability , we recommend the ADR421 .
  • For high accuracy, low noise and higher output current , we recommend the ADR431 .

Design Resources

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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

AD7608 Material Declaration
PCN-PDN Information Quality And Reliability Symbols and Footprints

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Overview

2 Reviews
1 out of 1 (100%) customers recommend this product.
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Most Helpful Review

by Anonymous
8 Simultaneously Sampled Inputs Single 5V Analog Supply Fast throughput rate

Most Recent Review

by Anonymous
the analog device products has always been great at performances

All Reviews

by Anonymous, 9 Jul 13
quite satisfactory
the analog device products has always been great at performances
Was this Helpful?Helpful(1)
by Anonymous, 8 Dec 12
This product has great features.effective resolution up to 16-bit
8 Simultaneously Sampled Inputs Single 5V Analog Supply Fast throughput rate
Was this Helpful?Helpful(2)

Sample & Buy

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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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Evaluation Boards Pricing displayed is based on 1-piece.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.