DESCRIPTION

The LTC®1292/LTC1297 are data acquisition systems that contain a 12-bit, switched-capacitor successive approximation A/D, a differential input, sample- and-hold on the (+) input, and serial I/O. When the LTC1297 is idle between conversions it automatically powers down reducing the supply current to 5µA, typically. The LTC1292 is capable of digitizing signals at a 60kHz rate and with the device’s excellent AC characteristics, it can be used for DSP applications. All these features are packaged in an 8-pin DIP and are made possible using LTCMOSTM switched-capacitor technology.

FEATURES
■ Single Supply 5V Operation
■ Power Shutdown After Each Conversion (LTC1297)
■ Built-In Sample-and-Hold
■ 60kHz Maximum Throughput Rate (LTC1292)
■ Direct 3-Wire Interface to Most MPU Serial Ports and
All MPU Parallel Ports
■ Analog Inputs Common Mode to Supply Rails