LT580XH#PBF

Voltage Reference Overview

The LT580XH#PBF is a high-temperature series voltage reference manufactured by Analog Devices Inc. It provides a fixed output voltage of 2.5V and operates within an ambient temperature range of -55°C to 200°C. The device features guaranteed temperature coefficients, with values ranging from 10 ppm/°C at lower temperatures up to 150 ppm/°C between 125°C and 200°C. Line regulation is specified as low as 1 mV for input voltages between 4.5V and 7V. Quiescent current typically ranges from 1.0 mA to 2.5 mA across the operating temperature spectrum.

Voltage Reference Feature Summary

• Capable of 100% testing at 200°C to ensure reliability in extreme thermal environments
• Features an absolute maximum operating junction temperature of 225°C
• Provides guaranteed temperature coefficient specifications across extended thermal ranges

Voltage Reference Applications

• High-temperature industrial sensor signal conditioning
• Aerospace and defense instrumentation requiring extreme thermal stability
• Downhole drilling equipment electronics
• Automotive engine control systems near heat sources

Voltage Reference Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm that the specific lot matches the lead-free finish and TO-52 metal can package requirements. Ensure storage conditions prevent moisture ingress prior to high-temperature reflow or assembly processes. Review the official datasheet for handling precautions related to the metal can construction.

Voltage Reference Selection Notes

Select this component when standard commercial-grade references fail under sustained high thermal loads. The TO-52 metal can package offers superior thermal dissipation compared to plastic packages. Consider the higher quiescent current draw relative to modern CMOS references. Evaluate if the 2.5V output aligns with system ADC or DAC input requirements without additional scaling circuitry.

Voltage Reference Part Context

This part belongs to the LT580 family of precision voltage references designed specifically for harsh environments. Unlike standard commercial variants, the XH suffix denotes the extended high-temperature capability up to 200°C. The family utilizes bandgap technology optimized for minimal drift over wide thermal excursions. It serves as a critical reference element in systems where thermal failure is a primary concern.

Voltage Reference Replacement Considerations

LT580UH#PBF: Same electrical specifications but different marking code; verify package compatibility.