LT1236AIS8-5#TRPBF

Voltage Reference Overview

The LT1236AIS8-5#TRPBF is a precision voltage reference utilizing a buried zener diode structure for ultra-low drift and noise. It provides a nominal 5V output with an initial accuracy of ±0.05% maximum. The device operates in series or shunt modes, sourcing and sinking up to 10mA while maintaining high ripple rejection. Key electrical characteristics include a maximum temperature coefficient of 5ppm/°C and a supply current of approximately 1.2mA. It functions within an industrial temperature range of -40°C to +85°C.

Voltage Reference Feature Summary

• Combines ultra-low drift and noise with excellent long-term stability using a buried zener structure
• Capable of both sourcing and sinking load currents up to 10mA in series mode operation
• Features high input voltage immunity with over 100dB ripple rejection
• Includes a dedicated trim pin for fine-tuning the output voltage

Voltage Reference Applications

• A/D and D/A converters requiring stable reference voltages
• Precision regulators and instrumentation systems
• Inertial navigation systems demanding low thermal drift
• Digital voltmeters and precision scales

Voltage Reference Procurement Notes

Verify that the specific suffix #TRPBF corresponds to tape-and-reel packaging when ordering. Confirm the 'AI' grade designation matches the required -40°C to +85°C industrial temperature range and 5ppm/°C drift specification. Ensure compatibility with the S8 plastic SOIC package footprint on the target PCB layout.

Voltage Reference Selection Notes

Select this component for applications requiring superior temperature stability compared to standard bandgap references. The buried zener technology offers better time stability and lower noise than surface breakdown devices. Consider the trim pin utility if precise voltage calibration is necessary for the specific system requirements.

Voltage Reference Part Context

This part belongs to the LT1236 family of precision references manufactured by Analog Devices (formerly Linear Technology). The family includes variants with different output voltages (5V and 10V) and accuracy grades. The LT1236 is designed to replace older hermetic references like the AD586 and AD587 while offering improved performance in a modern plastic package.

Voltage Reference Replacement Considerations

Pin-compatible replacements include the AD586 and AD586 equivalents. Verify that substitute components meet the specific 5ppm/°C temperature coefficient and 0.05% accuracy requirements of the AI grade.