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PSIEVM

Precision signal injector (PSI) evaluation module for testing ADC performance

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PSIEVM

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Overview

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.

Features
  • 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

  • PSI evaluation module
  • USB cable
  • SMA coaxial cables (2)
Precision ADCs
ADS8681 — 16-Bit, 1-MSPS, 1-Ch SAR ADC with programmable (±12/±10/±6/±5/±2.5V) input ranges on +5V supply ADS8881 — 18-Bit, 1-MSPS, 1-Ch SAR ADC with True-Differential Input, SPI Interface and Daisy-Chain ADS8900B — 20-bit, 1-MSPS, one-channel SAR ADC with internal VREF buffer, internal LDO and enhanced SPI
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PSIEVM — Precision signal injector (PSI) evaluation module for testing ADC performance

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GUI for evaluation module (EVM)

SBAC170 — Precision Signal Injector (PSI) GUI Installer

Supported products & hardware
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SBAC170 — Precision Signal Injector (PSI) GUI Installer

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Latest version
Version: 01.00.00.00
Release date: 11 Jul 2017
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Products
Precision ADCs
ADS8900B — 20-bit, 1-MSPS, one-channel SAR ADC with internal VREF buffer, internal LDO and enhanced SPI
Hardware development
Evaluation board
PSIEVM — Precision signal injector (PSI) evaluation module for testing ADC performance

Release Infomation

The design resource accessed as www.ti.com/lit/zip/sbac170 or www.ti.com/lit/xx/sbac170/sbac170.zip has been migrated to a new user experience at www.ti.com/tool/download/SBAC170. Please update any bookmarks accordingly.
TI's Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

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Type Title Date
* EVM User's guide Precision Signal Injector Evaluation Module (PSIEVM) User's Guide 30 Oct 2017
Certificate PSIEVM EU Declaration of Conformity (DoC) 02 Jan 2019

Related design resources

Hardware development

EVALUATION BOARD
ADS127L18EVM-PDK — ADS127L18 evaluation module ADS9218EVM-PDK — ADS9218 performance demonstration kit for two-channel, simultaneous-sampling, 18-bit 10-MSPS SAR ADC

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