ADS1211

ACTIVE

24-bit, 15.6-kSPS, 8-ch delta-digma ADC with VREF and PGA

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Product details

Parameters

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Package | Pins | Size

SOIC (DW) 24 160 mm² 15.5 x 10.3 SSOP (DB) 28 54 mm² 10.5 x 5.3 open-in-new Find other Precision ADCs (<=10MSPS)

Features

  • DELTA-SIGMA A/D CONVERTER
  • 23 BITS EFFECTIVE RESOLUTION AT 10Hz AND 20 BITS AT 1000Hz
  • DIFFERENTIAL INPUTS
  • PROGRAMMABLE GAIN AMPLIFIER
  • FLEXIBLE SPI™ COMPATIBLE SSI INTERFACE WITH 2-WIRE MODE
  • PROGRAMMABLE CUT-OFF FREQUENCY UP TO 15.6kHz
  • INTERNAL/EXTERNAL REFERENCE
  • ON CHIP SELF-CALIBRATION
  • ADS1211 INCLUDES 4-CHANNEL MUX
  • APPLICATIONS
    • INDUSTRIAL PROCESS CONTROL
    • INSTRUMENTATION
    • BLOOD ANALYSIS
    • SMART TRANSMITTERS
    • PORTABLE INSTRUMENTS
    • WEIGH SCALES
    • PRESSURE TRANSDUCERS

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Description

The ADS1210 and ADS1211 are precision, wide dynamic range, delta-sigma analog-to-digital converters with 24-bit resolution operating from a single +5V supply. The differential inputs are ideal for direct connection to transducers or low level voltage signals. The delta-sigma architecture is used for wide dynamic range and to guarantee 22 bits of no missing code performance. An effective resolution of 23 bits is achieved through the use of a very low-noise input amplifier at conversion rates up to 10Hz. Effective resolutions of 20 bits can be maintained up to a sample rate of 1kHz through the use of the unique Turbo modulator mode of operation. The dynamic range of the converters is further increased by providing a low-noise programmable gain amplifier with a gain range of 1 to 16 in binary steps.

The ADS1210 and ADS1211 are designed for high resolution measurement applications in smart transmitters, industrial process control, weigh scales, chromatography and portable instrumentation. Both converters include a flexible synchronous serial interface which is SPI compatible and also offers a two-wire control mode for low cost isolation.

The ADS1210 is a single channel converter and is offered in both 18-pin DIP and 18-lead SOIC packages. The ADS1211 includes a 4-channel input multiplexer and is available in 24-pin DIP, 24-lead SOIC, and 28-lead SSOP packages.

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ADS124S08 ACTIVE 24-bit, 4-kSPS, 12-ch delta-sigma ADC with PGA and voltage reference for sensor measurement This device has more inputs (12), lower noise, lower power, smaller package, integrated IDACs and oscillator
ADS1256 ACTIVE 24-Bit, 30kSPS, 8-Ch Delta-Sigma ADC With PGA for Factory Automation and Process Control This device has faster sampling rate and lower noise

Technical documentation

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No results found. Please clear your search and try again. View all 7
Type Title Date
* Datasheet 24-Bit Analog-to-Digital Converter datasheet (Rev. B) Sep. 08, 2005
Application notes How delta-sigma ADCs work, Part 1 (Rev. A) Sep. 19, 2016
Application notes Coding Schemes Used with Data Converters (Rev. A) May 15, 2015
Application notes Getting the Full Potential from your ADC (Rev. B) May 15, 2015
Application notes How delta-sigma ADCs work, Part 2 Nov. 09, 2011
Application notes Calibration Routines and Register Value Generation for the ADS121x Series Jun. 19, 2003
Application notes Inputs Currents for High-Resolution ADCs Mar. 06, 2003

Design & development

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

Design tools & simulation

SIMULATION TOOLS Download
SPICE-based analog simulation program
TINA-TI 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 (...)
document-generic User guide
CALCULATION TOOLS Download
Analog-to-digital converter (ADC) input driver design tool supporting multiple input types
ADC-INPUT-CALC ADC-INPUT-CALC is an online tool that provides support for designing the input buffer to an analog-to-digital converter (ADC). It offers 24 different op-amp based buffer circuits that can be used to drive an ADC input. The available topologies cover differential, single-ended and transformer-coupled (...)
CALCULATION TOOLS Download
Analog engineer's calculator
ANALOG-ENGINEER-CALC — 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 op-amp gain with feedback (...)
Features
  • Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
    • Noise calculations
    • Common unit translation
  • Solves common amplifier circuit design problems
    • Gain selections using standard resistors
    • Filter configurations
    • Total noise for common amplifier configurations
  • (...)

CAD/CAE symbols

Package Pins Download
SOIC (DW) 24 View options
SSOP (DB) 28 View options

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