ADS1213 22-Bit Analog-to-Digital Converter | TI.com

ADS1213 (ACTIVE)

22-Bit Analog-to-Digital Converter

 

Recommended alternative parts

  • ADS124S08  - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.   ADS124S08 offers more analog inputs (12), better noise performance, significantly lower power, smaller package + integrated oscillator, IDACs & temp sensor
  • ADS1256  - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.   Faster sampling rate, lower noise

Description

The ADS1212 and ADS1213 are precision, wide dynamic range, delta-sigma Analog-to-Digital (A/D) 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 20 bits is achieved through the use of a very low-noise input amplifier at conversion rates up to 10Hz. Effective resolutions of 16 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 ADS1212 and ADS1213 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 ADS1212 is a single channel converter and is offered in both DIP-18 and SO-18 packages. The ADS1213 includes a 4-channel input multiplexer and is available in DIP-24, SO-24, and SSOP-28 packages.

Features

  • DELTA-SIGMA A/D CONVERTER
  • 22 BITS NO MISSING CODES
  • 20 BITS EFFECTIVE RESOLUTION AT 10Hz AND 16 BITS AT 1000Hz
  • LOW POWER: 1.4mW
  • DIFFERENTIAL INPUTS
  • PROGRAMMABLE GAIN AMPLIFIER
  • SPI™ COMPATIBLE SSI INTERFACE
  • PROGRAMMABLE CUTOFF FREQUENCY UP TO 6.25kHz
  • INTERNAL/EXTERNAL REFERENCE
  • ON-CHIP SELF-CALIBRATION
  • ADS1213 INCLUDES 4-CHANNEL MUX
  • APPLICATIONS
    • INDUSTRIAL PROCESS CONTROL
    • INSTRUMENTATION
    • BLOOD ANALYSIS
    • SMART TRANSMITTERS
    • PORTABLE INSTRUMENTS
    • WEIGH SCALES
    • PRESSURE TRANSDUCERS

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