Features

• Software Programmable Features:
  Unipolar/Bipolar Conversion
  Differential/Single Ended Inputs
  MSB-First or MSB/LSB Data
• Built-In Sample and Hold
• Single Supply 5V or ±5V Operation
• Direct 4-Wire Interface to Most MPU Serial Ports and All MPU Parallel Ports
• 46.5kHz Maximum Throughput Rate
• System Shutdown Output (LTC1296)

Typical Application

Description

The 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. When the LTC1293/4/6 is idle it can be powered down in applications where low power consumption is desired. The LTC1296 includes a System Shutdown Output pin which can be used to power down external circuitry, such as signal conditioning circuitry prior to the input mux.

The serial I/O is designed to communicate without external hardware to most MPU serial ports and all MPU parallel I/O ports allowing up to eight channels of data to be transmitted over as few as three wires.