16-Bit, 1MSPS Multiplexed Data Acquisition Reference Design

(ACTIVE) TIPD169

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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 Reference  Sample & Buy Not Available
SN74LV393A  Dual 4-Bit Binary Counters  Specialty Logic  Sample & Buy Not Available
SN74LVC1G14  Single Schmitt-Trigger Inverter  Logic  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-Ohm SPDT Analog Switch  Switches and Multiplexers  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 1255 04 Aug 2015 347
Design files (2)
Title Abstract Type Size (KB) Date Views
PDF 125 09 Sep 2015 26
PDF 468 09 Sep 2015 73
Related Tools & Software

Software (1)




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