Click to expand full text
ADS1251
ADS1251
SBAS184D – MARCH 2001 – REVISED JUNE 2009
24-Bit, 20kHz, Low-Power ANALOG-TO-DIGITAL CONVERTER
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 10kHz
APPLICATIONS
q CARDIAC DIAGNOSTICS q DIRECT THERMOCOUPLE INTERFACES q BLOOD ANALYSIS q INFRARED PYROMETERS q LIQUID/GAS CHROMATOGRAPHY q PRECISION PROCESS CONTROL
DESCRIPTION
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.