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 (1.8V to 5V) and LVDS Serial I/O nn Internal Conversion Clock, No Cycle Latency nn 81mW Power Dissipation (Typical) nn 32-Lead (5mm × 5mm) QFN Package APPLICATIONS
nn Programmable Logic Controllers nn Industrial Process Control nn Medical Imaging nn High Speed Data Acquisition The LTC®2344-18 is an 18-bit, low noise 4-channel simultaneous sampling successive approximation register (SAR) ADC with differential, wide common mode range inputs.
Linear Technology
