Linear Technology LTC1290CCN#PBF

Description
The LTC1290 is a single-chip data acquisition system that includes a serial I/O successive approximation A/D converter. It utilizes LTCMOS switched capacitor technology to perform 12-bit unipolar or 11-bit plus sign bipolar A/D conversions. The 8-channel input multiplexer can be configured for single-ended or differential inputs. An on-chip sample-and-hold is provided for all single-ended input channels. The LTC1290 can be powered down with a serial word when idle, making it suitable for applications requiring low power consumption.

Features
Software programmable features
Unipolar/bipolar conversion
Four differential/eight single-ended inputs
MSB- or LSB-first data sequence
Variable data word length
Power shutdown
Built-in sample-and-hold
Single supply 5V or 5V operation
Direct four-wire interface to most MPU serial ports and all MPU parallel ports
50kHz maximum throughput rate
Available in 20-lead PDIP and SO wide packages

Applications
12-bit 8-channel sampling data acquisition system
Single-ended input
Differential input
Overvoltage protection