4-Channel, 4.8 kHz, Ultralow Noise, 24-Bit Sigma-Delta ADC with PGA

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Product Details

The AD7193 is designed for the measurement of wide dynamic range, low frequency signals such as those in pressure transducers, strain gauge transducers, flow measurement, chromatography and data acquisition systems etc.

The AD7193 is an low power, flexible, high performance, ultra-low noise, 24 bit, Sigma Delta ADC suitable for converting low input bandwidth analog signals with a fully flexible ODR (output data rate) between 4.7SPS to 4.8kSPS

There is an on-chip low noise gain stage which allows signals of small amplitude to interface directly to the ADC.

The AD7193 combines 4 differential or 8 pseudo differential input channels with low power figures.

With an ODR of 4.7sps and a gain of 128 the AD7193 can boast RMS noise of 11nV.

The AD7193 is user friendly, with full part configuration available over a 3 wire serial interface.

The AD7193 comes in a 28 lead TSSOP package and a 32 lead LFCSP package.

  • Mains power supply interference Simultaneous 50Hz and 60Hz rejection at 50SPS ODR
  • Programmable gains of 1, 8, 16, 32, 64 and 128
  • Automatic channel sequencer
  • On chip temperature sensor
  • Internal and system calibration on chip
  • Option of 4.92MHz internal clock or external crystal
  • Digital filter options include Sinc4 Sinc3 , chop enabled/disabled, fast settling and zero latency
  • Ultra-Low noise figures across the ODR range
  • Fully SPI, QSPI, Microwire and DSP compatible
  • SPI configuration control
  • 3 wire serial digital interface (Schmitt trigger on SCLK)

Product Lifecycle

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At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits


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Product Details

The EVAL-AD7193EBZ is a fully featured evaluation board for the AD7193. The evaluation board can be connected to a PC via a standard USB interface. Software is provided enabling the user to perform detailed analysis of the ADC's performance.

Tools & Simulations

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Virtual Eval - BETA

Virtual Eval is a web application to assist designers in product evaluation of ADCs and DACs. Using detailed models on Analog’s servers, Virtual Eval simulates crucial part performance characteristics within seconds. Configure operating conditions such as input tones and external jitter, as well as device features like gain or digital down-conversion. Performance characteristics include noise, distortion, and resolution, FFTs, timing diagrams, frequency response plots, and more.

Virtual Eval Beta

Design Tools

Product Recommendations

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AD7193 Companion parts

Recommended Digital Isolators

  • For a low cost standard digital isolator , we recommend the ADUM1411 or the ADUM1412 .
  • For a digital isolator with isoPower , we recommend the ADUM5401 or the ADUM5402 .

Recommended Driver Amplifier

  • For a low noise, low distortion, rail-to-rail output, differential driver , we recommend the ADA4940-1 .
  • For a precision, general purpose, rail-to-rail, single-ended input , we recommend the AD8628 .

Recommended Precision Reference

  • For low noise, high accuracy, 5V reference , we recommend the ADR425 .
  • For low noise, high accuracy, 2.5V reference , we recommend the ADR421 or the ADR431 .

Recommended Linear Regulators

  • For powering the separate AVdd and DVdd supplies , we recommend the ADP3303 .

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.

AD7193 Material Declaration
PCN-PDN Information Quality And Reliability Symbols and Footprints



AD7193 Discussions

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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.