DESCRIPTION
The LTC®1392 is a micropower data acquisition system designed to measure temperature, on-chip supply voltage and a differential voltage. The differential inputs feature rail-to-rail common mode input voltage range. The LTC1392 contains a temperature sensor, a 10-bit A/D converter with sample-and-hold, a high accuracy bandgap reference and a 3-wire half-duplex serial interface.

FEATURES
■ Complete Ambient Temperature Sensor Onboard
■ System Power Supply Monitor
■ 10-Bit Resolution Rail-to-Rail Common-Mode Differential Voltage Input
■ Available in 8-Pin SO and PDIP
■ 0.2µA Supply Current When Idle
■ 700µA Supply Current When Sampling at Maximum Rate
■ Single Supply Voltage: 4.5V to 6V
■ 3-Wire Half-Duplex Serial I/O
■ Communicates with Most MPU Serial Ports and All MPU Parallel I/O Ports

APPLICATIONS
■ Temperature Measurement
■ Power Supply Measurement
■ Current Measurement
■ Remote Data Acquisition
■ Environment Monitoring