LT1236BCS8-5#PBF

Voltage Reference Overview

The LT1236BCS8-5#PBF is a precision shunt voltage reference manufactured by Analog Devices Inc. It provides a nominal output voltage of 5 V with an initial accuracy of ±0.05%. The device features a maximum temperature coefficient of 5 ppm/°C and operates within an industrial temperature range of 0°C to +70°C. It accepts a maximum input voltage of 40 V and supports a maximum shunt current of 10 mA. The unit draws a typical supply current of 800 µA and is housed in an 8-lead SOIC package.

Voltage Reference Feature Summary

• Utilizes a buried zener diode structure for superior noise performance and long-term stability compared to surface breakdown devices.
• Capable of sourcing and sinking up to 10 mA while maintaining high immunity to input voltage variations.
• Designed to minimize thermal regulation effects and temperature-induced hysteresis without requiring on-chip heaters.

Voltage Reference Applications

• Analog-to-Digital and Digital-to-Analog Converters
• Precision Regulators
• Inertial Navigation Systems

Voltage Reference Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and RoHS adherence before procurement. Confirm the BC grade designation matches the required 5 ppm/°C temperature coefficient specification. Ensure the SOIC-8 package footprint aligns with the target PCB layout constraints. Validate that the industrial temperature range meets the operational environment requirements.

Voltage Reference Selection Notes

Select this component when ultra-low drift and high accuracy are critical for system precision. The buried zener architecture offers better time stability than standard band-gap references. Consider the 10 mA output capability for applications requiring both sourcing and sinking currents. Verify that the 0°C to +70°C operating range covers the intended environmental conditions.

Voltage Reference Part Context

This part belongs to the LT1236 family of precision references, which includes 5 V and 10 V variants. The LT1236 series is pin-compatible with older AD586 and AD587 models, facilitating direct upgrades. The BC grade specifically denotes the 5 ppm/°C temperature coefficient tier within the product line.

Voltage Reference Replacement Considerations

LT1236ACS8-5#PBF (Lower temperature coefficient)

Voltage Reference FAQ

Can the LT1236BCS8-5#PBF operate as a two-terminal shunt regulator?

Yes, the datasheet confirms it can be used as a shunt regulator with the same precision characteristics as the three-terminal connection.

What is the minimum input/output voltage differential required?

The device requires a minimum input/output differential of 1 V to function correctly.