LT1461CIS8-3#TRPBF

Voltage Reference Overview

The LT1461CIS8-3#TRPBF is a micropower precision low dropout series voltage reference manufactured by Analog Devices Inc. It provides a fixed 3V output with an initial accuracy of ±0.08% and a maximum temperature coefficient of 12ppm/°C over the industrial temperature range of –40°C to 85°C. The device operates with a supply current of 35µA typical and supports up to 50mA output drive current. It features a shutdown pin for power management and thermal limiting protection, housed in an 8-lead plastic SO package.

Voltage Reference Feature Summary

• Advanced curvature compensation techniques ensure low temperature coefficient and high output accuracy.
• Integrated shutdown feature allows switching full load currents and enables system power down modes.
• Thermal shutdown protects the component from overload conditions and excessive junction temperatures.

Voltage Reference Applications

• A/D and D/A Converters
• Precision Regulators
• Handheld Instruments

Voltage Reference Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing this part number. Confirm the IS8 designation corresponds to the industrial temperature grade (-40°C to 85°C) rather than commercial or high-grade variants. Ensure compatibility with 8-lead SOIC footprints during PCB layout verification.

Voltage Reference Selection Notes

Select this component for applications requiring low quiescent current alongside moderate output drive capabilities. The industrial temperature range suits environments with wider thermal excursions than commercial grades allow. Consider the 12ppm/°C drift specification against system error budgets where higher precision grades like AIS8 might be necessary.

Voltage Reference Part Context

This part belongs to the LT1461 family of bandgap references, which combines high accuracy with low supply current. The family includes various voltage options and temperature grades, utilizing trimmed precision thin-film resistors. The IS8 variant specifically targets industrial applications requiring reliable performance across extended temperature ranges.

Voltage Reference Replacement Considerations

LT1461CIS8-3#PBF