LT1461AIS8-5#TRPBF

Voltage Reference Overview

The LT1461AIS8-5#TRPBF is a micropower precision low dropout series voltage reference from Analog Devices, featuring a fixed 5V output. It belongs to the A-grade tier with an initial accuracy of ±0.04% and a maximum temperature coefficient of 3ppm/°C over the industrial range of –40°C to 85°C. The device operates with a supply current of 35µA typical and draws up to 70µA maximum. It supports a minimum output drive of 50mA and functions within an input voltage range of (VOUT + 0.5V) to 20V.

Voltage Reference Feature Summary

• Combines high accuracy with low drift using advanced curvature compensation and trimmed thin-film resistors
• Provides high output drive capability suitable for precision regulators despite low supply current consumption
• Includes power shutdown functionality and thermal limiting protection for system management

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific suffix #TRPBF confirms tape and reel packaging rather than tube. Confirm the AIS8 designation matches the required –40°C to 85°C industrial temperature range and A-grade accuracy specifications. Ensure the pinout and SOIC-8 package dimensions align with the target PCB layout requirements before finalizing procurement.

Voltage Reference Selection Notes

Select this component when precise 5V referencing is required in portable or battery-powered systems due to its low quiescent current. The A-grade specification ensures minimal drift, making it suitable for high-resolution data acquisition systems. Consider the shutdown feature if system power management requires active control of the reference load current.

Voltage Reference Part Context

This part is a member of the LT1461 family of micropower precision low dropout series voltage references. It shares the core architecture with other grades but offers superior initial accuracy and temperature stability compared to B and C grades. The device integrates bandgap reference technology optimized for low noise and long-term stability in surface-mount packages.

Voltage Reference Replacement Considerations

LT1461AIS8-5#PBF