This document introduces two data acquisition system products LTC1292/LTC1297. The features include 12-bit resolution, maximum conversion time of 12µs, low supply current of 6.0mA, shutdown supply current of 5µA (LTC1297), built-in sample-and-hold, single supply 5V operation, 60kHz maximum throughput rate (LTC1292), power shutdown after each conversion (LTC1297), direct 3-wire interface to most MPU serial ports and all MPU parallel ports, analog input common mode to supply rails
The LTC1292/LTC1297 are data acquisition systems containing a 12-bit switched-capacitor successive approximation A/D converter with differential input and sample-and-hold on the positive input. The devices utilize LTCMOS technology to achieve high accuracy in an 8-pin DIP package, suitable for digitizing analog signals in remote applications.
| Maximum Throughput Rate (LTC1292) | 60kHz |
|---|---|
| Shutdown Supply Current (LTC1297) | 5uA |
| Supply Voltage Operation | Single Supply 5V |
| Operating Temperature Range (Commercial) | 0°C to 70°C |
| Package Type | 8-pin DIP |
The typical clock frequency for the LTC1292 is 1.0 MHz.
Yes, when idle between conversions it automatically powers down reducing supply current to 5uA.
The conversion time is 12 CLK cycles.