LT6654BXMS8-2.5#PBF

Voltage Reference Overview

The LT6654BXMS8-2.5#PBF is a precision voltage reference providing a fixed 2.5V output, rated for operation up to a 175°C junction temperature. It operates from supply voltages up to 36V and is fully specified across a –40°C to 175°C range. The device features a buffered output capable of sourcing 3mA and sinking 10mA at maximum temperature, with low dropout voltage and precise load regulation. Key electrical parameters include an initial accuracy of ±0.1% to ±1.0%, a temperature coefficient of 20ppm/°C, and low noise of 1.5ppm P-P (0.1Hz to 10Hz). It is housed in an 8-lead MSOP package.

Voltage Reference Feature Summary

• Rated for high-temperature operation up to 175°C junction temperature
• Wide supply voltage range supporting inputs up to 36V
• Buffered output enables both sourcing and sinking current capabilities
• Low thermal hysteresis ensures high accuracy under extreme conditions

Voltage Reference Applications

• Oil and gas exploration equipment
• Down-hole drilling instrumentation
• Avionics systems
• Heavy industrial applications
• High temperature automotive environments

Voltage Reference Procurement Notes

Verify the specific suffix #PBF indicates tube packaging when ordering. Confirm that the BX grade designation corresponds to the required 175°C junction temperature rating. Ensure input bypass and output load capacitors meet datasheet recommendations for stability at elevated temperatures. Check for availability constraints as high-temperature variants may have limited stock or longer lead times compared to standard grades.

Voltage Reference Selection Notes

Select this component when application requirements demand precision voltage referencing in environments exceeding standard 125°C limits. The wide 36V supply capability simplifies power design in harsh settings. Consider the 8-lead MSOP package size for space-constrained PCB layouts. Evaluate thermal management strategies to ensure junction temperature remains within safe operating limits during high dissipation scenarios.

Voltage Reference Part Context

This part belongs to the LT6654 family of precision voltage references. While standard LT6654 devices are typically specified up to 125°C, the BX variant extends this specification to 175°C. It shares core architectural features with the broader family but is optimized for extreme thermal endurance. The MSOP package provides a compact surface-mount solution suitable for automated assembly processes.

Voltage Reference Replacement Considerations

LT6654BHLS8-2.5#PBF: Standard temperature grade version.