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FEATURES
LTC2344-18 Quad, 18-Bit, 400ksps/ch Differential SoftSpan ADC with Wide Input Common Mode Range DESCRIPTION
nn 400ksps per Channel Throughput nn Four Simultaneous Sampling Channels nn ±4LSB INL (Maximum, ±4.096V Range) nn Guaranteed 18-Bit, No Missing Codes nn Differential, Wide Common Mode Range Inputs nn Per-Channel SoftSpan Input Ranges:
±4.096V, 0V to 4.096V, ±2.048V, 0V to 2.048V ±5V, 0V to 5V, ±2.5V, 0V to 2.5V nn 95dB Single-Conversion SNR (Typical) nn −114dB THD (Typical) at fIN = 2kHz nn 102dB CMRR (Typical) at fIN = 200Hz nn Rail-to-Rail Input Overdrive Tolerance nn Guaranteed Operation to 125°C nn Integrated Reference and Buffer (4.096V) nn SPI CMOS (1.