ADS1211U

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ADS1211U

24-Bit Analog-to-Digital Converter

Packaging

Package | PIN: DW | 24
Temp: I (-40 to 85)
Carrier: Partial Tube
Qty Price
1-9 $28.14
10-24 $26.31
25-99 $25.48
100-249 $22.65
250-499 $22.48
500-749 $21.15
750-999 $18.98
1000+ $18.92

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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Texas Instruments  ADS1211U

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.