LTC1294BCN#PBF

ADCs/DACs - Special Purpose Overview

The LTC1294BCN#PBF is a single-chip 12-bit data acquisition system manufactured by Analog Devices Inc. It integrates a successive approximation A/D converter, an analog multiplexer, and a sample-and-hold circuit using LTCMOS switched capacitor technology. The device supports eight input channels configurable for differential or single-ended operation. It operates on a single 5V supply or ±5V supplies with a maximum throughput rate of 46.5ksps. Key specifications include a typical offset error of ±3.0 LSB, linearity error (INL) of ±0.5 LSB, and gain error of ±0.5 LSB. The component utilizes a synchronous serial interface for communication.

ADCs/DACs - Special Purpose Feature Summary

• Integrated 12-bit SAR ADC with 8-channel analog multiplexer
• Software programmable for unipolar/bipolar conversion and MSB/LSB data sequence
• Direct 4-wire serial interface compatible with most MPU ports
• Low power consumption with 6.0mA supply current and shutdown capability

ADCs/DACs - Special Purpose Applications

• Industrial process control systems
• Battery-powered instrumentation
• Data acquisition modules
• Strain gauge bridge measurements

ADCs/DACs - Special Purpose Procurement Notes

Verify the package type corresponds to the 'N' suffix for 20-lead PDIP. Confirm the temperature grade matches the 'B' suffix for the commercial range (0°C to 70°C). Ensure the ordering suffix '#PBF' indicates lead-free compliance. Cross-reference the manufacturer part number with official Analog Devices documentation to confirm availability status.

ADCs/DACs - Special Purpose Selection Notes

Select this component when an 8-channel multiplexed input is required within a single package. The LTC1294 lacks the System Shutdown Output (SSO) pin found in the LTC1296 variant; choose the LTC1296 if external circuitry power-down signaling is necessary. Verify that the serial interface timing meets the microprocessor's clock requirements, specifically the 1MHz maximum clock frequency.

ADCs/DACs - Special Purpose Part Context

The LTC1294 belongs to the LTC1293/LTC1294/LTC1296 family of 12-bit data acquisition systems. While functionally similar regarding the ADC core and multiplexer, the LTC1294 is distinguished from the LTC1296 by the absence of the SSO pin. It shares the same 20-lead PDIP package options as the LTC1296 but differs in pinout configuration relative to the 16-lead LTC1293.

ADCs/DACs - Special Purpose Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.