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ADS1255 ADS1256
SBAS288K − JUNE 2003 − REVISED SEPTEMBER 2013
Very Low Noise, 24-Bit Analog-to-Digital Converter
FEATURES
DESCRIPTION
D 24 Bits, No Missing Codes
− All Data Rates and PGA Settings
D Up to 23 Bits Noise-Free Resolution D ±0.0010% Nonlinearity (max) D Data Output Rates to 30kSPS D Fast Channel Cycling
− 18.6 Bits Noise-Free (21.3 Effective Bits) at 1.45kHz
D One-Shot Conversions with Single-Cycle
Settling
D Flexible Input Multiplexer with Sensor Detect
− Four Differential Inputs (ADS1256 only) − Eight Single-Ended Inputs (ADS1256 only)
D Chopper-Stabilized Input Buffer D Low-Noise PGA: 27nV Input-Referred Noise D Self and System Calibration for All PGA
Settings
D 5V Tolerant SPI™-Compatible Serial Interface D Analog Supply: 5V D Digital Supply: 1.8V to 3.