LT1461BIS8-3#TRPBF

Voltage Reference Overview

The LT1461BIS8-3#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 ±0.06% and a maximum temperature coefficient of 7ppm/°C. The device operates within an industrial temperature range of –40°C to 85°C and draws a typical supply current of 35µA. It features a shutdown pin for power management, thermal limiting protection, and high output drive capability up to 50mA. The component is housed in an 8-lead plastic SO package and supplied in tape and reel format.

Voltage Reference Feature Summary

• Micropower operation with low supply current suitable for portable applications
• High accuracy bandgap reference using advanced curvature compensation
• Integrated shutdown control for system power down and load switching
• Thermal limiting protection prevents damage during 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 this part number. Confirm the B grade designation matches the required ±0.06% accuracy and 7ppm/°C temperature coefficient specifications. Ensure the IS8 variant aligns with the necessary –40°C to 85°C industrial operating temperature range for your design environment.

Voltage Reference Selection Notes

Select this component when precise voltage referencing is required alongside low power consumption. The 3V output option fits systems needing standard logic levels or specific ADC references. The shutdown feature allows for efficient power management in battery-operated devices. Verify that the 50mA output drive meets the load requirements without exceeding thermal limits.

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 drift and low supply current. Other options include different voltage outputs such as 2.5V, 3.3V, 4.096V, and 5V, as well as various accuracy grades and temperature ranges.

Voltage Reference Replacement Considerations

LT1461BIS8-3#PBF serves as the tube packaging equivalent for the same electrical specifications.