24Bit ADC, 8CH, PGA 1: 128, 50/60Hz Notch, 0.6mW Power Consumption 20-TSSOP -40℃ to 85℃
DESCRIPON
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
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