ADC Voltage Reference Buffer Optimization Reference Design for High Performance DAQ Systems
TIDA-01055
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
- TIDA-01055 Schematic and Block Diagram
(PDF 914 KB)
15 Sep 2017
- ADC Voltage Reference Buffer Optimization Ref Design for High-Performance DAQs (Rev. A)
(PDF 3126 KB)
29 Jan 2018
Description
The TIDA-01055 reference design for high performance DAQ Systems optimizes the ADC reference buffer to improve SNR performance and reduce power consumption with the TI OPA837 high-speed op amp. This device is used in a composite buffer configuration and provides a 22% power improvement over traditional op amps. Voltage reference sources with an integrated buffer often lack the drive strength required to achieve optimal performance in a high-channel count systems. This reference design is capable of driving several ADCs, and achieves a system ENOB of 15.77 bits using an 18-bit, 2-MSPS SAR ADC.
Features
- Two stage buffer design for reducing noise generated from voltage reference
- Implements new low power reference driver with the slew rate capability to drive a 2MSPS SAR ADC
See the Important Notice and Disclaimer covering reference designs and other TI resources.
