16-bit 400KSPS 4-Ch. Multiplexed Data Acquisition Ref Design for High Voltage Inputs, Low Distortion
TIPD151
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
See the Important Notice and Disclaimer covering reference designs and other TI resources.
Key Document
- 16-Bit 400-kSPS Four-Channel MUX Data Acquisition System Reference Guide (Rev. B)
(PDF 4698 KB)
29 Mar 2016
-
TIPD151 Design File
(ZIP 584 KB)
02 Dec 2013
Description
This TI Verified Design implements a 16-bit, differential 4-channel multiplexed data acquisition system at 400KSPS throughput for high voltage differential input of ±20 V (40 Vpk-pk) industrial applications. The circuit is realized with a 16-bit successive-approximation-resistor (SAR) analog-to-digital converter (ADC), a precision high voltage signal conditioning front end, and a 4-channel differential multiplexer (MUX). The design details the process for optimizing the precision high voltage front end drive circuit using the OPA192 and OPA140 to achieve excellent dynamic performance with the ADS8864.
Features
- 4-Channel, High-Voltage (±20 V), Multiplexed, Data Acquisition System
- 400 KSPS (100KSPS/Channel) Sampling Rate
- ±1LSB INL
- 16 Bit, Full Scale, Channel-to-Channel Settling
- 14.2 Bits ENOB
See the Important Notice and Disclaimer covering reference designs and other TI resources.
