DESCRIPTION
The LTC®1090 is a data acquisition component which contains a serial I/O successive approximation A/D converter. It uses LTCMOSTM switched capacitor technology to perform either 10-bit unipolar, or 9-bit plus sign bipolar A/D conversions. The 8-channel input multiplexer can be configured for either single ended or differential inputs (or combinations thereof). An on-chip sample and hold is included for all single ended input channels.

FEATURES
■ Software Programmable Features:
   Unipolar/Bipolar Conversions
   4 Differential/8 Single Ended Inputs
   MSB or LSB First Data Sequence
   Variable Data Word Length
■ Built-In Sample and Hold
■ Single Supply 5V, 10V or ±5V Operation
■ Direct 4 Wire Interface to Most MPU Serial Ports and
   All MPU Parallel Ports
■ 30kHz Maximum Throughput Rate