LT1461AIS8-3#TRPBF

Voltage Reference Overview

The LT1461AIS8-3#TRPBF is a micropower precision low dropout series voltage reference from Analog Devices Inc., featuring a fixed 3V output in an 8-lead plastic SO package. It offers high accuracy with ±0.04% initial tolerance and a maximum temperature coefficient of 3ppm/°C over the industrial range of –40°C to 85°C. The device draws a typical supply current of 35µA, supports up to 50mA output drive, and includes a shutdown feature for power management.

Voltage Reference Feature Summary

• Combines advanced curvature compensation and trimmed thin-film resistors for high accuracy and low drift
• Features a dedicated shutdown pin to minimize supply current during inactive periods
• Includes thermal limiting protection to prevent damage under overload conditions

Voltage Reference Applications

• A/D and D/A converters
• Precision regulators
• Handheld instruments
• Power supplies

Voltage Reference Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the 'I' grade designation corresponds to the –40°C to 85°C operating range required for your application environment. Ensure compatibility with existing board layouts regarding the 8-lead SO package dimensions.

Voltage Reference Selection Notes

Select this part for applications requiring precise 3V references with minimal quiescent current consumption. The industrial temperature grade ensures stability across wider environmental variations compared to commercial grades. Consider the 50mA drive capability if the reference must directly supply load currents without additional buffering stages.

Voltage Reference Part Context

This component belongs to the LT1461 family of bandgap references designed for low power and portable applications. The family provides various voltage options including 2.5V, 3.3V, and 5V. The AIS8 variant specifically targets industrial environments with tighter performance specifications than standard commercial counterparts.

Voltage Reference Replacement Considerations

LT1461AIS8-3#PBF