LT1461AIS8-2.5#TRPBF

Voltage Reference Overview

The LT1461AIS8-2.5#TRPBF is a micropower precision low dropout series voltage reference from Analog Devices, featuring a fixed 2.5V output in an 8-lead plastic SO package. It delivers high accuracy with a maximum initial tolerance 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 supports up to 50mA output drive. Input voltage ranges from VOUT + 0.3V to 20V, ensuring stable regulation with minimal dropout.

Voltage Reference Feature Summary

• Advanced curvature compensation techniques achieve low temperature drift and high output accuracy using trimmed precision thin-film resistors.
• Integrated shutdown feature allows switching full load currents and enables system power down while maintaining low quiescent current.
• Built-in thermal limiting protects the component from overload conditions by regulating junction temperature during high dissipation events.

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 AIS8 designation corresponds to the –40°C to 85°C industrial temperature grade required for your application environment. Ensure compatibility with 8-lead SOIC footprints during PCB layout verification.

Voltage Reference Selection Notes

Select this variant for applications requiring the highest accuracy tier (0.04%) within the industrial temperature range. The 2.5V output is suitable for systems needing precise mid-range references. Consider the 35µA supply current for battery-operated designs where power efficiency is critical alongside precision requirements.

Voltage Reference Part Context

This component 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. Other variants in the series offer different output voltages and accuracy grades, such as the ACS8 or BCS8 options, but the AIS8 specifically targets industrial temperature stability with premium precision specifications.

Voltage Reference Replacement Considerations

LT1461AIS8-2.5#PBF