ADS1242IPWR Datasheet PDF - TI

●DESCRIPTION

●The ADS1242 and ADS1243 are precision, wide dynamic range, delta-sigma, analog-to-digital (A/D) converters with 24-bit resolution operating from 2.7V to 5.25V supplies. These delta-sigma, A/D converters provide up to 24 bits of no missing code performance and effective resolution of 21 bits. The input channels are multiplexed. Internal buffering can be selected to provide a very high input impedance for direct connection to transducers or low-level voltage signals. Burn out current sources are provided that allow for the detection of an open or shorted sensor. An 8-bit digital-to-analog converter (DAC) provides an offset correction with a range of 50% of the FSR (Full-Scale Range).

●FEATURES

● 24 BITS NO MISSING CODES

● SIMULTANEOUS 50Hz AND 60Hz REJECTION (–90dB MINIMUM)

● 0.0015% INL

● 21 BITS EFFECTIVE RESOLUTION (PGA = 1), 19 BITS (PGA = 128)

● PGA GAINS FROM 1 TO 128

● SINGLE-CYCLE SETTLING

● PROGRAMMABLE DATA OUTPUT RATES

● EXTERNAL DIFFERENTIAL REFERENCE OF 0.1V TO 5V

● ON-CHIP CALIBRATION

● SPI™ COMPATIBLE

● 2.7V TO 5.25V SUPPLY RANGE

● 600µW POWER CONSUMPTION

● UP TO EIGHT INPUT CHANNELS

● UP TO EIGHT DATA I/O

●APPLICATIONS

● INDUSTRIAL PROCESS CONTROL

● LIQUID/GAS CHROMATOGRAPHY

● BLOOD ANALYSIS

● SMART TRANSMITTERS

● PORTABLE INSTRUMENTATION

● WEIGHT SCALES