Precision Signal Injector (PSI) Evaluation Module for Testing ADC Performance
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Description & Features

Technical documentation

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Key Document


The precision signal injector (PSI) is a platform for evaluating the performance of successive-approximation register (SAR) analog-to-digital converters (ADCs). The board provides a low-distortion, low-noise, 2-kHz input signal for driving the input of the ADC, and pairs with most of the TI SAR ADC evaluation modules (EVMs). The board is powered over a USB, which also provides a user-interface connection to a PC.

  • PSI software GUI has graphical tool for controlling amplitude, frequency, and offset of AC signal
  • Onboard filter for generating very-low distortion, low-noise, 2-kHz signal
  • Jumper-selectable options for filtering and offset-/common-mode voltage
  •  Single-ended or true differential-signal output options
  • Powered over single USB cable

What's Included

  • PSI evaluation module
  • USB cable
  • SMA coaxial cables (2)

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Precision Signal Injector (PSI) Evaluation Module for Testing ADC Performance


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Technical documentation
User guides (1)
Title Type Size (KB) Date
PDF 13050 30 Oct 2017
More literature (1)
Title Type Size (KB) Date
PDF 38 02 Jan 2019

Software development (1)

TI Devices (3)

Part Number Name Product Family
ADS8681  16-Bit, 1-MSPS, 1-Ch SAR ADC with programmable (±12/±10/±6/±5/±2.5V) input ranges on +5V supply  Analog-to-digital converters (ADCs) 
ADS8881  18-Bit, 1-MSPS, 1-Ch SAR ADC with True-Differential Input, SPI Interface and Daisy-Chain  Analog-to-digital converters (ADCs) 
ADS8900B  20-Bit, 1-MSPS, 1-Ch SAR ADC with Internal VREF Buffer, Internal LDO and Enhanced SPI Interface  Analog-to-digital converters (ADCs) 

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