ADS1260
24-bit, 40-kSPS, 5-ch delta-sigma ADC with PGA, VREF and IDACs for factory automation
ADS1260
- 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.
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
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 (...)
ADC-TEMP-SENSOR-FW — Temperature-sensor (RTD, thermocouple, thermistor) firmware for precision ADCs
This software includes an (...)
ADC-DESIGN-CALC — Online design calculator tool for TI Precision ADCs
Supported products & hardware
Products
Precision ADCs
Isolated ADCs
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
Products
Precision ADCs
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
Products
Precision ADCs
Hardware development
Evaluation board
ANALOG-ENGINEER-CALC — PC software 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 (...)
Supported products & hardware
Products
Precision op amps (Vos<1mV)
General-purpose op amps
Audio op amps
Transimpedance amplifiers
High-speed op amps (GBW ≥ 50 MHz)
Power op amps
Video amplifiers
Line drivers
Transconductance amplifiers & laser drivers
Fully differential amplifiers
Precision ADCs
Biosensing AFEs
High-speed ADCs (≥10 MSPS)
Receivers
Touchscreen controllers
Difference amplifiers
Instrumentation amplifiers
Audio line receivers
Analog current-sense amplifiers
Digital power monitors
Analog current-sense amplifiers with integrated shunt resistor
Digital power monitors with integrated shunt resistor
Die & wafer services
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
TINA-TI — SPICE-based analog simulation program
TIDA-060020 — HART-enabled PLC analog input module reference design
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
VQFN (RHB) | 32 | Ultra Librarian |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
- Fab location
- Assembly location
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
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