24位20K翻译采集芯片ADS1251 中文手册

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资料介绍

FEATURES
● 24 BITS—NO MISSING CODES
● 19 BITS EFFECTIVE RESOLUTION UP TO
20kHz DATA RATE
● LOW NOISE: 1.5ppm
● DIFFERENTIAL INPUTS
● INL: 15ppm (max)
● EXTERNAL REFERENCE (0.5V to 5V)
● POWER-DOWN MODE
● SYNC MODE
● LOW POWER: 8mW at 20kHz
5mW at 10kHz
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. Effective resolution of 19 bits
(1.5ppm of rms noise) is achieved at conversion rates up to
20kHz.
The ADS1251 is designed for high-resolution measurement
applications in cardiac diagnostics, smart transmitters, industrial process control, weigh scales, chromatography, and
portable instrumentation. 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
APPLICATIONS (41.7kHz data rate).
● CARDIAC DIAGNOSTICS
● DIRECT THERMOCOUPLE INTERFACES
● BLOOD ANALYSIS
● INFRARED PYROMETERS
● LIQUID/GAS CHROMATOGRAPHY
● PRECISION PROCE