Texas Instruments ADS1251
The ADS1251 is a precision, wide dynamic range, deltasigma, Analog-to-Digital (A/D) converter with 24-bit resolution operating from a single +5V supply. The delta-sigma architecture features wide dynamic range, and 24 bits of no missing code performance. The ADS1251 is designed for high-resolution measurement applications in cardiac diagnostics, smart transmitters, industrial process control, weigh scales, chromatography, and portable instrumentation.| Part No. | ADS1251 |
|---|---|
| Datasheet | ADS1251 Download |
| Manufacturer |  Texas Instruments |
| Description | Analog-To-Digital Converter |
| Buy | Stock & Price |
FEATURES
q 24 BITS—NO MISSING CODES q 19 BITS EFFECTIVE RESOLUTION UP TO 20kHz DATA RATE q LOW NOISE: 1.5ppm q DIFFERENTIAL INPUTS q INL: 15ppm (max) q EXTERNAL REFERENCE (0.5V to 5V) q POWER-DOWN MODE q SYNC MODE q LOW POWER: 8mW at 20kHz 5mW at 10kHzAPPLICATIONS
q CARDIAC DIAGNOSTICS q DIRECT THERMOCOUPLE INTERFACES q BLOOD ANALYSIS q INFRARED PYROMETERS q LIQUID/GAS CHROMATOGRAPHY q PRECISION PROCESS CONTROLDESCRIPTION
Effective resolution of 19 bits (1.5ppm of rms noise) is achieved at conversion rates up to 20kHz. The converter includes a flexible, 2-wire synchronous serial interface for low-cost isolation. The ADS1251 is a single-channel converter and is offered in an SO-8 package. It is pin-compatible with the faster ADS1252 (41.7kHz data rate). ADS1251 +VIN –VIN 4th-Order ∆Σ Modulator Digital Filter Serial Interface Control VREF CLK SCLK DOUT/DRDY +VDD GND Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
