16-Bit, 1MSPS Multiplexed Data Acquisition Reference Design TIPD169 (ACTIVE)

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Key Document

Description

This design is for a 16-bit 1MSPS single-ended, multiplexed data acquisition system (DAQ) for dc inputs. The system is composed of a 16-bit successive-approximation-register (SAR) analog-to-digital converter (ADC), SAR ADC driver, reference driver, and multiplexer. The design shows the process to optimize a single-ended DAQ to achieve fast settling at a sampling rate of 1MSPS.

Features
  • 1/2 LSB settling in 390 ns
  • Throughput of 1MSPS
  • 4 V output step
  • Measured Effective Resolution of 15.72 bits
  • Measured ENOB of 13.57 bits

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TI Devices (9)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
ADS8860  16 bit 1 MSPS, Serial, Pseudo-Differential Input, Micro Power, Miniature, SAR ADC  Analog-to-digital converters (ADCs)  Sample & Buy View Design Kits & Evaluation Modules
OPA320  Precision, Zero-Crossover, 20MHz, 0.9pA Ib, RRIO, CMOS Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
OPA333  1.8V, 17µA, microPower, precision, zero-drift CMOS op amp  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
OPA625  High Bandwidth, High Precision, Low Noise & Distortion Amplifier SAR ADC Driver with Power Scaling  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
REF5045  Low Noise, Very Low Drift, Precision Series Voltage Reference  Voltage references  Sample & Buy View Design Kits & Evaluation Modules
SN74LV393A  Dual 4-Bit Binary Counters  Specialty logic  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC1G14  Single Schmitt-Trigger Inverter  Buffer/driver  Sample & Buy View Design Kits & Evaluation Modules
THS4281  Very Low-Power High Speed Rail-To-Rail Input/Output Voltage Feedback Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
TS5A3159  1-Ω SPDT analog switch  Switches & multiplexers  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
ADS8860 Download
OPA320 Download Download
OPA333 Download Download
Download Download
Download Download
OPA625 Download Download
REF5045 Download Download
Download Download
SN74LV393A Download Download
Download Download
Download Download
Download Download
Download -
SN74LVC1G14 Download -
Download -
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Download
Download Download
Download -
Download Download
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THS4281 Download Download
Download Download
Download Download
TS5A3159 Download Download
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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 1255 04 Aug 2015
Design files (2)
Title Type Size (KB) Date
PDF 125 09 Sep 2015
PDF 468 09 Sep 2015
Related Tools & Software

Software (1)



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