LT1461CIS8-2.5#TRPBF

Voltage Reference Overview

The LT1461CIS8-2.5#TRPBF is a micropower precision low dropout series voltage reference manufactured by Analog Devices Inc. It provides a fixed 2.5V 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. It features a shutdown pin for power management, thermal limiting protection, and requires input voltages between VOUT + 0.5V and 20V.

Voltage Reference Feature Summary

• Micropower bandgap reference utilizing advanced curvature compensation and trimmed thin-film resistors for high accuracy
• Integrated shutdown control 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 requiring stable reference voltages
• Precision regulators needing low dropout performance
• Handheld instruments designed for battery operation
• General purpose power supplies

Voltage Reference Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm the CIS8 designation corresponds to the industrial temperature grade of –40°C to 85°C. Ensure compatibility with 8-lead plastic SO packages. Check for RoHS compliance status in official documentation before finalizing procurement specifications.

Voltage Reference Selection Notes

Select this part for applications requiring low quiescent current alongside moderate output drive capabilities. The 12ppm/°C temperature coefficient suits industrial environments where stability across wide temperature ranges is critical. Consider the 300mV maximum dropout voltage for battery-powered designs to maximize operational life while maintaining regulation.

Voltage Reference Part Context

This component belongs to the LT1461 family of micropower precision low dropout series voltage references. The family includes various output voltage options and temperature grades, such as commercial (CS8) and automotive (DHS8). The LT1461CIS8 variant specifically targets industrial applications with balanced accuracy and drift characteristics.

Voltage Reference Replacement Considerations

LT1461CCS8-2.5#TRPBF offers similar electrical characteristics but is rated for the commercial temperature range of 0°C to 70°C instead of the industrial range.