ADS1261 evaluation module


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The ADS1261 evaluation module (EVM) is a platform for evaluating the ADS1261 analog-to-digital converter (ADC). ADS1261 is a low-drift, 24-bit, 40-kSPS, 10-channel delta-sigma (ΔΣ) ADC with an integrated PGA, voltage reference, and internal fault monitors. This sensor-ready ADC provides a high-accuracy, one-chip measurement solution for the most-demanding measurements, including weigh scales, strain-gauge sensors, thermocouples, and resistance temperature detectors (RTDs).

The ADS1261EVM and Delta-Sigma ADC EvaluaTIon Software (DELTASIGMAEVAL-GUI) are provided to reduce prototype development time and get products to market faster.

  • Includes all required support circuitry for ADS1261
  • Delta-Sigma ADC EvaluaTIon Software (DELTASIGMAEVAL-GUI) enables quick configuration and analysis
  • Configurable inputs, references, and supplies
  • Easily-accessible signals via test points and headers

  • ADS1261EVM
  • USB micro-B plug to USB-A plug cable

Boost converters (integrated switch)
TPS61252 3.5-MHz, 1.5-A, 92% efficient boost converter, adjustable input current Limit, ±20% current accuracy


Charge pumps (inductorless)
LM27762 Low-Noise Positive- and Negative-Output Charge Pump With Integrated LDO


ESD & surge protection ICs
TPD4S012 Quad 0.8-pF, 5.5-V, ±8-kV ESD protection diode with 15-V tolerant Vbus for USB Interface


Linear & low-dropout (LDO) regulators
TPS717 150-mA, high-PSRR, low-IQ, low-dropout voltage regulator with enable TPS737 1-A, ultra-low-dropout voltage regulator with reverse current protection & enable TPS7A47 1-A, 36-V, low-noise, high-PSRR, low-dropout voltage regulator with enable


Low-side drivers
UCC27524 5-A/5-A dual-channel gate driver with 5-V UVLO, enable, and 1-ns delay Matching


Precision ADCs (<=10MSPS)
ADS1260 24-bit, 40-kSPS, 5-ch delta-sigma ADC with PGA, VREF and IDACs for factory automation ADS1260-Q1 Automotive 24-bit, 40-kSPS, 5-ch delta-sigma ADC with PGA, VREF and IDACs ADS1261 24-bit, 40-kSPS, 10-ch delta-sigma ADC with PGA, VREF, IDACs & AC excitation for factory automation ADS1261-Q1 Automotive 24-bit, 40-kSPS, 10-ch, delta-sigma ADC with PGA, VREF, IDACs and AC excitation


USB redrivers & multiplexers
TS3USB221E High-Speed USB 2.0 (480-Mbps) 1:2 Multiplexer/Demultiplexer Switch With Single Enable

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Evaluation board

ADS1261EVM — ADS1261 evaluation module

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Support software

DELTASIGMAEVAL-GUI — Delta-sigma ADC EvaluaTIon software

lock = Requires export approval (1 minute)
Hardware programming tool

ADS1261EVM-DVCPKG — ADS1261EVM device package

lock = Requires export approval (1 minute)
Support software

ADS1261 Design Calculator (Rev. B) — SBAC200B.ZIP (1970KB)

TI's Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

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Type Title Date
* EVM User's guide ADS1261 and ADS1235 Evaluation Module User's Guide (Rev. A) Sep. 28, 2018
* User guide Delta-Sigma ADC EvaluaTIon Software User's Manual PDF | HTML May 17, 2016
Application note Reduce Bridge Measurement Offset and Drift Using the AC Excitation Mode (Rev. A) PDF | HTML Apr. 01, 2021
Data sheet ADS126x Precision, 5-channel and 10-channel, 40-kSPS, 24-bit, delta-sigma ADCs with PGA and monitors datasheet (Rev. C) PDF | HTML Jan. 22, 2019
Certificate ADS1261EVM EU Declaration of Conformity (DoC) Jan. 02, 2019

Related design resources

Software development

DELTASIGMAEVAL-GUI Delta-sigma ADC EvaluaTIon software

Support & training

TI E2E™ forums with technical support from TI engineers

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