LTC1294CCSW#TRPBF

ADCs/DACs - Special Purpose Overview

The LTC1294CCSW#TRPBF is a single-chip 12-bit data acquisition system manufactured by Analog Devices Inc. It integrates an 8-channel analog multiplexer, sample-and-hold circuitry, and a successive approximation A/D converter. The device supports unipolar or bipolar conversions with a maximum throughput rate of 46.5ksps. It operates on a single 5V supply or ±5V dual supplies, drawing 6mA typical current. The component features a software-programmable serial interface compatible with most MPU ports, allowing configuration for differential or single-ended inputs via a 7-bit input word.

ADCs/DACs - Special Purpose Feature Summary

• Integrated 8-channel analog multiplexer with built-in sample-and-hold for all single-ended channels
• Software-configurable for unipolar/bipolar modes, differential/single-ended inputs, and MSB/LSB data sequences
• Direct 4-wire serial interface to microprocessors with power shutdown capability reducing current to 5µA
• LTCMOS switched capacitor technology enabling fast 12µs max conversion time over temperature

ADCs/DACs - Special Purpose Applications

• Industrial process control systems requiring multi-channel signal conditioning
• Data acquisition modules for monitoring strain gauge bridges and sensor arrays
• Portable battery-powered instrumentation utilizing low power shutdown modes
• Automated test equipment interfaces connecting to microprocessor-based controllers

ADCs/DACs - Special Purpose Procurement Notes

Verify the ordering suffix #TRPBF indicates tape and reel packaging with lead-free (PbF) compliance. Confirm the CC suffix corresponds to the commercial temperature range of 0°C to 70°C. Ensure the specific lot date code meets project requirements as this is a legacy component within the LTC1293/4/6 family.

ADCs/DACs - Special Purpose Selection Notes

Select the LTC1294CCSW#TRPBF when eight analog input channels are required in a compact SOIC-20 package. Choose this model over the LTC1293 if channel count exceeds six, or over the LTC1296 if the System Shutdown Output (SSO) pin is unnecessary. Verify that the 46.5ksps sampling rate satisfies the Nyquist criteria for the target application bandwidth.

ADCs/DACs - Special Purpose Part Context

This component belongs to the LTC1293/LTC1294/LTC1296 family of single-chip 12-bit data acquisition systems. The LTC1294 specifically provides eight input channels, distinguishing it from the six-channel LTC1293 and the SSO-equipped LTC1296. All variants share identical core ADC architecture and serial interface protocols, differing primarily in pin counts and specific control outputs.

ADCs/DACs - Special Purpose Replacement Considerations

Public confirmed substitute part numbers: LTC1294CCSW, LTC1294BCSW, LTC1294DCSW.