16 bit 1MSPS Data Acquisition Reference Design for Single-Ended Multiplexed Applications
TIPD173
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
-
TIPD173 Design File
(ZIP 912 KB)
02 Oct 2014
- 16-Bit 1-MSPS Data Acquisition Ref Design for Single-Ended Multiplexed Apps (Rev. A)
(PDF 1861 KB)
20 Apr 2017
Description
This TI Precision Verified Design details a systematic design methodology for a 16 bit, 1MSPS, single-ended data acquisition (DAQ) block optimized to achieve excellent settling time, power consumption, static performance and dynamic performance for multiplexed applications. The design features a 16-bit, high-precision, successive-approximation-register (SAR) analog-digital converter (ADC); low noise, low power and wide bandwidth ADC input drive circuitry; and, a very low drift ADC voltage reference and corresponding reference input drive circuitry.
This design is well suited to applications which require low-latency, multi-channel, data acqusition for multi-sensor measurements such as environmental (temperature, pressure, etc..), biopotential and power measurement.
Features
- Contains Theory, Component Selection, Simulation, Schematic, PCB Layout, and Measured Performance Results
- Optimized for 900ns (max) 16-bit step-input transient settling time
- Power: 21.5mW @ AVDD = 3.3V
- Measured ENOB of 14.58 bits
- Utilizes ADS8860 (16bit, 1Msps SAR ADC), OPA320 (Input Driver), THS4281 + OPA333 + REF5040 (Reference Driver)
See the Important Notice and Disclaimer covering reference designs and other TI resources.
