Home Data converters Analog-to-digital converters (ADCs) Precision ADCs
Home
Data converters
Analog-to-digital converters (ADCs)
Precision ADCs

ADS1260

ACTIVE

24-bit, 40-kSPS, 5-ch delta-sigma ADC with PGA, VREF and IDACs for factory automation

Order now
Data sheet

ADS1260

ACTIVE
Data sheet Order now

Product details

Resolution (Bits) 24 Sample rate (max) (ksps) 40 Number of input channels 5 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 2.5, 5 Input voltage range (min) (V) -2.5, 0 Features 50/60 Hz Rejection, Excitation Current Sources (iDACs), Oscillator, PGA, Temp Sensor Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 20 Analog supply (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
Resolution (Bits) 24 Sample rate (max) (ksps) 40 Number of input channels 5 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 2.5, 5 Input voltage range (min) (V) -2.5, 0 Features 50/60 Hz Rejection, Excitation Current Sources (iDACs), Oscillator, PGA, Temp Sensor Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 20 Analog supply (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
VQFN (RHB) 32 25 mm² 5 x 5
  • 24-bit, high-precision ADCs
    • Offset drift: 1 nV/°C
    • Gain drift: 0.5 ppm/°C
    • Noise: 30 nVRMS (20 SPS, gain = 128)
    • Linearity: 2 ppm
  • CMOS PGA gain: 1 to 128
  • Wide input voltage range: ±7 mV to ±5 V
  • Data rate: 2.5 SPS to 40 kSPS
  • 2.5-V reference: 2 ppm/°C
  • Simultaneous 50-Hz and 60-Hz rejection mode
  • Single-cycle settling mode
  • Signal and reference monitors
  • 5-V or ±2.5-V power supply
  • Internal temperature sensor
  • Cyclic redundancy check (CRC)
  • Excitation current sources
  • Sensor burn-out current sources
  • Four general-purpose inputs/outputs (ADS1261)
  • AC excitation for bridge sensors (ADS1261)
  • 5-mm × 5-mm VQFN package
  • 24-bit, high-precision ADCs
    • Offset drift: 1 nV/°C
    • Gain drift: 0.5 ppm/°C
    • Noise: 30 nVRMS (20 SPS, gain = 128)
    • Linearity: 2 ppm
  • CMOS PGA gain: 1 to 128
  • Wide input voltage range: ±7 mV to ±5 V
  • Data rate: 2.5 SPS to 40 kSPS
  • 2.5-V reference: 2 ppm/°C
  • Simultaneous 50-Hz and 60-Hz rejection mode
  • Single-cycle settling mode
  • Signal and reference monitors
  • 5-V or ±2.5-V power supply
  • Internal temperature sensor
  • Cyclic redundancy check (CRC)
  • Excitation current sources
  • Sensor burn-out current sources
  • Four general-purpose inputs/outputs (ADS1261)
  • AC excitation for bridge sensors (ADS1261)
  • 5-mm × 5-mm VQFN package

The ADS1260 and ADS1261 (ADS126x) are precision, 40-kSPS, delta-sigma (ΔΣ) analog-to-digital converters (ADCs) that include a programmable gain amplifier (PGA). The devices also include a precision voltage reference and internal fault monitors. The sensor-ready ADCs give a high-accuracy, single-chip solution for the most demanding measurements, for example, weigh scales and resistance temperature detectors (RTDs).

The ADCs contain an input signal multiplexer, a low-noise PGA (with gains from 1 to 128), a 24-bit ΔΣ modulator, a precision voltage reference, and a programmable digital filter.

The high-impedance PGA inputs (1 GΩ) decrease measurement error due to sensor loading. The ADS1260 supports three differential or five single-ended inputs. The ADS1261 supports five differential or ten single-ended inputs. The integrated current sources simplify the measurement of RTDs.

The flexible digital filter is programmable for single-cycle settled conversions, while supplying simultaneous 50-Hz and 60-Hz line cycle rejection. Signal and reference monitors, a temperature sensor, and CRC data verification make data reliability better.

The ADS126x are pin compatible devices given in a 5-mm × 5-mm VQFN package and are specified across the –40°C to +125°C temperature range.

The ADS1260 and ADS1261 (ADS126x) are precision, 40-kSPS, delta-sigma (ΔΣ) analog-to-digital converters (ADCs) that include a programmable gain amplifier (PGA). The devices also include a precision voltage reference and internal fault monitors. The sensor-ready ADCs give a high-accuracy, single-chip solution for the most demanding measurements, for example, weigh scales and resistance temperature detectors (RTDs).

The ADCs contain an input signal multiplexer, a low-noise PGA (with gains from 1 to 128), a 24-bit ΔΣ modulator, a precision voltage reference, and a programmable digital filter.

The high-impedance PGA inputs (1 GΩ) decrease measurement error due to sensor loading. The ADS1260 supports three differential or five single-ended inputs. The ADS1261 supports five differential or ten single-ended inputs. The integrated current sources simplify the measurement of RTDs.

The flexible digital filter is programmable for single-cycle settled conversions, while supplying simultaneous 50-Hz and 60-Hz line cycle rejection. Signal and reference monitors, a temperature sensor, and CRC data verification make data reliability better.

The ADS126x are pin compatible devices given in a 5-mm × 5-mm VQFN package and are specified across the –40°C to +125°C temperature range.
open-in-new Find other Precision ADCs
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Pin-for-pin with same functionality to the compared device
ADS1261 ACTIVE 24-bit, 40-kSPS, 10-ch delta-sigma ADC with PGA, VREF, IDACs & AC excitation for factory automation Higher channel count (10)

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 11
Type Title Date
* 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 22 Jan 2019
Application note A Basic Guide to RTD Measurements (Rev. A) PDF | HTML 29 Mar 2023
Application note A Basic Guide to Thermocouple Measurements (Rev. A) PDF | HTML 29 Mar 2023
Application note Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs PDF | HTML 23 Mar 2022
Application note A Basic Guide to Bridge Measurements PDF | HTML 18 Feb 2022
Application note ADS124S08 3-Wire PT100 RTD Measurement Circuit w/ Low-Side Reference and 1 IDAC (Rev. B) 09 Sep 2021
Application note Communication Methods for Data Integrity Using Delta-Sigma Data Converters (Rev. A) PDF | HTML 23 Aug 2021
Application note RTD Wire-Break Detection Using Precision Delta-Sigma ADCs PDF | HTML 18 Feb 2021
E-book Fundamentals of Precision ADC Noise Analysis 19 Jun 2020
Analog Design Journal Enabling precision delta‐sigma ADCs in functional safety applications 19 Mar 2020
Circuit design K-type thermocouple measurement circuit with precision ADC 19 Mar 2019

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

ADS1261EVM — ADS1261 evaluation module

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 (...)

User guide: PDF
View options
Application software & framework

ADC-TEMP-SENSOR-FW — Temperature-sensor (RTD, thermocouple, thermistor) firmware for precision ADCs

This temperature-sensor linearization firmware provides a software routine for measuring and linearizing most common temperature sensors, including resistance temperature detectors (RTDs), thermocouples, thermistors (NTC, PTC, etc.) and analog temperature sensors.

This software includes an (...)

View options
Simulation model

ADS1260 IBIS Model

SBAM402.ZIP (46 KB) - IBIS Model
Download
Calculation tool

ADC-RTD-CONFIG-CALC — RTD Configuration Calculator for Precision ADCs

This resistance temperature detector (RTD) configuration calculator is a Microsoft® Excel-based tool that helps the user identify a system solution for an RTD application. Two-, three- and four-wire RTD configurations are shown by default, with options for a high-side or low-side reference (...)

Supported products & hardware

Supported products & hardware

Products
Precision ADCs
ADS1120 — 16-bit, 2-kSPS, 4-ch, low-power, small-size delta-sigma ADC with PGA, VREF, 2x IDACs & SPI interface ADS112C04 — 16-bit, 2-kSPS, 4-ch, low-power, small-size delta-sigma ADC with PGA, VREF, 2x IDACs & I2C interface ADS112U04 — 16-bit, 2-kSPS, 4-ch, low-power, small-size delta-sigma ADC w/ PGA, VREF, 2x IDACs & UART interface ADS114S06 — 16-bit, 4-kSPS, 6-ch delta-sigma ADC with PGA and voltage reference for sensor measurement ADS114S06B — 16-bit, 4-kSPS, 6-ch delta-sigma ADC With PGA and voltage reference for low-cost applications ADS114S08 — 16-bit, 4-kSPS, 12-ch delta-sigma ADC with PGA and voltage reference for sensor measurement ADS114S08B — 16-bit, 4-kSPS, 12-ch delta-sigma ADC with PGA and voltage reference for low-cost applications ADS1220 — 24-bit, 2-kSPS, four-channel, low-power, delta-sigma ADC with PGA, VREF, SPI and two IDACs ADS122C04 — 24-bit, 2-kSPS, 4-ch, low-power, small-size delta-sigma ADC with PGA, VREF, 2x IDACs & I2C interface ADS122U04 — 24-bit, 2-kSPS, 4-ch, low-power, small-size delta-sigma ADC w/ PGA, VREF, 2x IDACs & UART interface ADS124S06 — 24-bit, 4-kSPS, 6-ch delta-sigma ADC with PGA and voltage reference for precision sensor measurement ADS124S08 — 24-bit, 4-kSPS, 12-ch delta-sigma ADC with PGA and voltage reference for sensor measurement ADS125H01 — 24-bit, 40-kSPS, 1-ch delta-sigma ADC with low-noise PGA and ±20-V input ADS125H02 — 24-bit, 40-kSPS, 2-ch delta-sigma ADC with ±20-V input, PGA, IDACs, GPIOs and VREF ADS1260 — 24-bit, 40-kSPS, 5-ch delta-sigma ADC with PGA, VREF and IDACs for factory automation ADS1261 — 24-bit, 40-kSPS, 10-ch delta-sigma ADC with PGA, VREF, IDACs & AC excitation for factory automation
Download
Calculation tool

ADS1261-EXCEL-CALC-TOOL — ADS1261 Design Calculator

The ADS1261 Excel™ calculator tool provides the user with several easy-to-use tools to simplify the configuration of the ADS1260 and ADS1261. To ensure proper device functionality, the tool includes a common-mode-range calculator to easily determine if the input, supply voltage, and gain (...)

Supported products & hardware

Supported products & hardware

Products
Precision ADCs
ADS1260 — 24-bit, 40-kSPS, 5-ch delta-sigma ADC with PGA, VREF and IDACs for factory automation ADS1261 — 24-bit, 40-kSPS, 10-ch delta-sigma ADC with PGA, VREF, IDACs & AC excitation for factory automation
Hardware development
Evaluation board
ADS1235EVM — ADS1235 evaluation module ADS1261EVM — ADS1261 evaluation module
Download
Calculation tool

ANALOG-ENGINEER-CALC — Analog engineer's calculator

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
Download
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Request
Simulation tool

TINA-TI — SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
User guide: PDF
View options
Reference designs

TIDA-060020 — HART-enabled PLC analog input module reference design

This reference design is a single-channel, 4-mA to 20-mA analog input module that supports the highway addressable remote transducer (HART) communication protocol, enabling bidirectional digital communication between field transmitters and programmable logic controllers (PLCs). The loop current, (...)
Design guide: PDF
Schematic: PDF
Package Pins Download
VQFN (RHB) 32 View options
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos