LTC1293BCSW#PBF

ADCs/DACs - Special Purpose Overview

The LTC1293BCSW#PBF is a single-chip 12-bit data acquisition system manufactured by Analog Devices Inc. It integrates a successive approximation analog-to-digital converter (ADC), an analog multiplexer, and a built-in sample-and-hold circuit using LTCMOS switched capacitor technology. The device supports six single-ended or differential input channels and operates on a single +5V supply or ±5V dual supplies. It features a synchronous half-duplex serial interface for direct connection to microprocessors, with a maximum throughput rate of 46.5ksps. Key electrical specifications include a maximum conversion time of 12µs, a positive supply current of 6mA, and operation within the commercial temperature range of 0°C to 70°C.

ADCs/DACs - Special Purpose Feature Summary

• Integrated 12-bit SAR ADC with 6-channel analog multiplexer and built-in sample-and-hold
• Software-programmable unipolar/bipolar conversion modes and MSB/LSB data sequencing
• Direct 4-wire serial interface compatible with most MPU serial ports and parallel I/O
• Low power consumption with 6mA supply current and software-controlled power shutdown

ADCs/DACs - Special Purpose Applications

• Industrial process control systems requiring multi-channel data acquisition
• Battery-powered instrumentation utilizing low supply current capabilities
• Strain gauge bridge measurements and sensor signal conditioning
• Microprocessor-based data logging and monitoring systems

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix #PBF indicates lead-free packaging compliant with RoHS standards. Confirm the BC grade designation corresponds to the commercial temperature range of 0°C to 70°C. Ensure the SOIC-16 package dimensions match the target PCB footprint requirements. Check for any obsolete status updates from the manufacturer regarding this specific part number variant.

ADCs/DACs - Special Purpose Selection Notes

Select the LTC1293BCSW#PBF when six input channels are required, as opposed to the eight-channel LTC1294 or the shutdown-output LTC1296. Choose this component over parallel ADCs if board space is limited and a serial interface is acceptable. Verify that the 46.5ksps sampling rate meets the application bandwidth needs. Consider the external reference voltage requirement, as the device does not contain an internal reference generator.

ADCs/DACs - Special Purpose Part Context

This component belongs to the LTC1293/LTC1294/LTC1296 family of single-chip 12-bit data acquisition systems. The LTC1293 specifically provides six channels, distinguishing it from the eight-channel LTC1294 and the LTC1296 which includes a System Shutdown Output pin. All variants share the same core ADC architecture and serial interface protocol.

ADCs/DACs - Special Purpose Replacement Considerations

The LTC1294CCSW#PBF serves as a functional substitute if eight input channels are needed instead of six. The LTC1293BCN#PBF offers the same electrical performance in a 16-pin PDIP through-hole package. Ensure pin compatibility and thermal characteristics are reviewed before substitution.