LT1461CIS8-3.3#TRPBF

Voltage Reference Overview

The LT1461CIS8-3.3#TRPBF is a micropower precision low dropout series voltage reference manufactured by Analog Devices Inc. It provides a fixed 3.3V 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 drift and high output accuracy.
• Integrated shutdown capability allows switching full load currents and enables system power down modes.
• Built-in thermal limiting 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 existing PCB footprints for the 8-lead SOIC package before finalizing procurement orders.

Voltage Reference Selection Notes

Select this component for applications requiring stable reference voltages with minimal power consumption. The 3.3V output suits digital logic systems directly. Consider the 12ppm/°C drift specification against system error budgets. The shutdown feature adds value for battery-powered devices requiring extended standby times without sacrificing regulation performance under load.

Voltage Reference Part Context

This part belongs to the LT1461 family of micropower precision low dropout series voltage references. The family combines high accuracy with low supply current and high output drive capabilities. Variants within the family differ by output voltage options (2.5V, 3V, 3.3V, 4.096V, 5V) and temperature grades, all sharing the same core bandgap reference architecture and package style.

Voltage Reference Replacement Considerations

LT1461CIS8-3.3#PBF