Alternative Parts

  • ADAQ7988

    uModule signal chain product with SAR ADC, drivers and passives integrated

  • AD4008

    Improved SNR and Linearity, Pin for Pin, Ease-of-Use features


Features and Benefits

  • Low power dissipation
    • 400 µW at 100 kSPS (VDD only)
    • 700 µW at 100 kSPS (total)
  • 16-bit resolution with no missing codes
  • Throughput: 100 kSPS/500 kSPS options
  • INL: ±0.6 LSB typical, ±1.25 LSB maximum
  • SINAD: 91.5 dB at 10 kHz
  • THD: −114 dB at 10 kHz
  • Pseudo differential analog input range
    • 0 V to VREF with VREF from 2.5 V to 5.5 V
  • No pipeline delay
  • Single-supply 2.5 V operation with 1.8 V/2.5 V/3 V/5 V logic interface
  • Proprietary SPI-/QSPI™-/MICROWIRE™-/DSP-compatible serial interface
  • Daisy-chain multiple ADCs
  • 10-lead MSOP and 10-lead, 3 mm × 3 mm LFCSP, same space as SOT-23
  • Wide operating temperature range: −40°C to +125°C

Product Details

The AD7988-1/AD7988-5 are 16-bit, successive approximation, analog-to-digital converters (ADC) that operate from a single power supply, VDD. The AD7988-1 offers a 100 kSPS throughput, and the AD7988-5 offers a 500 kSPS throughput. They are low power, 16-bit sampling ADCs with a versatile serial interface port. On the CNV rising edge, they sample an analog input, IN+, between 0 V to VREF with respect to a ground sense, IN−. The reference voltage, REF, is applied externally and can be set independent of the supply voltage, VDD.

The SPI-compatible serial interface also features the ability to daisy-chain several ADCs on a single 3-wire bus using the SDI input. It is compatible with 1.8 V, 2.5 V, 3 V, or 5 V logic using the separate supply, VIO.

The AD7988-1/AD7988-5 generics are housed in a 10-lead MSOP or a 10-lead LFCSP with operation specified from −40°C to +125°C.


  • Battery-powered equipment
  • Low power data acquisition systems
  • Portable medical instruments
  • ATE equipment
  • Data acquisitions
  • Communications

Product Lifecycle icon-recommended 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 (2)

Tools & Simulations

Precision ADC Driver Tool

The Precision ADC Driver Tool is a web application that simulates the performance of precision ADC and driver combinations. Potential issues with driver selection, kickback settling, and distortion are flagged, and design tradeoffs can be quickly evaluated. Simulations and calculations include system noise, distortion, and settling of the ADC input


IBIS Models

AD7988-1 IBIS Models

Reference Designs (3)

Product Recommendations

AD7988-1 Companion Parts

Recommended Digital Isolators

  • For SPI Interface, lowest power, 2.5 kVrms isolation: ADUM1401.
  • For SPI Interface, smallest package, low voltage I/O (1.8 V to 5.5 V): ADUM3481.
  • For SPI Interface, low power, 5.0 kVrms isolation: ADUM4401.
  • For SPI Interface, enhanced system-level ESD performance, 2.5 kVrms isolation: ADUM3401.

Recommended Driver Amplifiers

Recommended External Voltage References

Design Resources

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.

PCN-PDN Information


AD7988-1 Discussions

RE: Opamp loop stabilty analysis
14 hour(s) ago in Differential Amplifiers
RE: AD9984 question
16 hour(s) ago in Video
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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.

Price Table Help


Evaluation Boards Pricing displayed is based on 1-piece.
Up to two boards can be purchased through To order more than two, please purchase through one of our listed distributors.
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.