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ADS86xxEVM-PDK Overview
The ADS86xxEVM-PDK is a platform for evaluating the ADS86xx series of devices. Throughout this
document, the terms ADS86xxEVM, demonstration kit, and evaluation board are synonyms with the
ADS8698EVM-PDK, ADS8688AEVM-PDK, ADS8678EVM-PDK, and ADS8668EVM-PDK. The
ADS86xxEVM-PDK consists of an ADS86xxEVM board and a simple capture card. The simple capture
card is a field-programmable gate array (FPGA)-based controller card that functions as a serial peripheral
interface (SPI™) host and transfers data to the ADS86xxEVM graphical user interface (GUI) via a USB
interface. The ADS86xxEVM GUI collects, analyzes, and records data from the ADS86xxEVM board. The
ADS86xxEVM GUI is capable of collecting data from the ADS86xxEVM in auto and manual modes,
configuring the ADC program registers, and performing FFT analysis of data captured from the ADC.
ADS86xxEVM Features:
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Includes support circuitry as a design example to match ADC performance.
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3.3-V slave SPI.
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Serial interface header for easy connection to the simple capture card.
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Designed for a 5-V analog supply.
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Integrated 4.096-V voltage reference.
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Bipolar (±10.24 V, ±5,12 V, ±2.56 V, ±1.28 V, and ±0.64 V) or unipolar (0 V to 10.24 V, 0 V to 5.12 V,
0 V to 2.56 V, and 0 V to 1.28 V) input ranges for each channel.
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Onboard, second-order, Butterworth, low-pass filters for four channels.
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Onboard regulator for generating a ±15-V bipolar supply for second-order, Butterworth, low-pass filters.
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Accepts a ±100-mV signal on the negative analog inputs (AIN_xGND).
ADS86xxEVM GUI Features:
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Captures data from the ADS86xxEVM in auto and manual modes.
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Configures the ADS86xx device program registers.
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Enables and disables channels in auto mode.
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Provides FFT analysis and calculates the SNR, THD, and SINAD ac performance parameters.
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Provides single and multiple graph views for captured data.
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Includes a dc histogram for dc inputs.
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Logs ADC data.
SBAU245A – June 2015 – Revised July 2015
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Copyright © 2015, Texas Instruments Incorporated
ADS86xxEVM-PDK Overview
ADS86xxEVM-PDK Evaluation Module
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