LT1461AIS8-2.5#PBF

Voltage Reference Overview

The LT1461AIS8-2.5#PBF is a micropower precision low dropout series voltage reference from Analog Devices, housed in an 8-lead plastic SO package. It provides a fixed 2.5V output with a maximum initial accuracy of ±0.04% and a maximum temperature coefficient of 3ppm/°C over the industrial temperature range of –40°C to 85°C. The device draws a typical supply current of 35µA and supports a minimum output drive current of 50mA. It features a shutdown pin for power management and thermal limiting protection.

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 ordering suffix matches the required temperature grade and packaging format. Confirm that the #PBF designation indicates lead-free finish and tube packaging. Ensure the selected variant aligns with the intended operating environment and mechanical constraints before finalizing procurement orders.

Voltage Reference Selection Notes

Select this part when high accuracy and low drift are critical within the industrial temperature range. The 2.5V output option suits applications requiring precise scaling or intermediate reference levels. Consider the 50mA drive capability for driving moderate loads directly without additional buffering stages.

Voltage Reference Part Context

This component belongs to the LT1461 family of micropower precision low dropout series voltage references. The 'AI' suffix denotes the industrial temperature grade (–40°C to 85°C) with the highest accuracy tier (±0.04%, 3ppm/°C). It shares functional similarities with other variants differing only in output voltage, accuracy class, or temperature range specifications.

Voltage Reference Replacement Considerations

LT1461AIS8-2.5#TRPBF