ADS8332EVMV2-PDK Evaluation Module
1 ADS8332EVMV2-PDK User's Guide
This user's guide describes the characteristics, operation, and use of the ADS8332 evaluation module (EVM) performance demonstration kit (PDK). The ADS8332 is a low-power, 16-bit, 500k samples per-second (SPS) successive approximation (SAR) analog-to-digital converter (ADC) with an 8-to-1 multiplexer (mux) input. Each input channel on the device supports unipolar input ranges of 0 V to 4.096 V with single-supply operation. The EVM-PDK eases the evaluation of ADS8332 device with hardware, software, and computer connectivity through the universal serial bus (USB) interface. This user's guide includes complete circuit descriptions, schematic diagrams, and a bill of materials.
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1 Overview
The ADS8332EVMV2-PDK is a platform for evaluating the performance of the ADS8332 SAR ADC, which is an 8-channel, 16-bit, 4.096-V, multiplexed input ADC device. The evaluation kit includes the ADS8332EVMV2 board and the precision host interface (PHI) controller board that enables the accompanying computer software to communicate with the ADC over USB for data capture and analysis.
The ADS8332EVMV2 board includes the ADS8332 SAR ADC, all the peripheral analog circuits, and components required to extract optimum performance from the ADC.
The PHI board primarily serves three functions:
- Provides a communication interface from the EVM to the computer through a USB port
- Provides the digital input and output signals necessary to communicate with the ADS8332EVMV2
- Supplies power to all active circuitry on the ADS8332EVMV2 board
Along with the ADS8332EVMV2 and PHI controller board, this evaluation kit includes an A-to-micro-B USB cable to connect to a computer.
The following related documents are available through the Texas Instruments web site at www.ti.com.
1.1 ADS8332EVMV2-PDK Features
The ADS8332EVMV2-PDK includes the following features:
- Hardware and software required for diagnostic testing as well as accurate performance evaluation of the ADS8332 ADC
- USB powered—no external power supply is required
- The PHI controller that provides a convenient communication interface to the ADS8332 ADC over USB 2.0 (or higher) for power delivery as well as digital input and output
- Easy-to-use evaluation software for Windows 7® and Windows 8®, 64-bit operating systems
- The software suite includes graphical tools for data capture, histogram analysis, spectral analysis, and linearity analysis. This suite also has a provision for exporting data to a text file for post-processing.
1.2 ADS8332EVMV2 Features
The ADS8332EVMV2 includes the following features:
- Onboard SMA connectors and RC input filters
- Jumper-selectable onboard 0.2-V common pin supply
- Jumper-selectable buffer between the multiplexer and the ADC
- Onboard ultralow-noise low-dropout (LDO) regulator for excellent 5.2-V single-supply regulation of the ADC and onboard voltage reference.
