LT1461ACS8-2.5#TRPBF

Voltage Reference Overview

The LT1461ACS8-2.5#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 ±0.04% and a maximum temperature coefficient of 3ppm/°C. The device operates within a specified commercial temperature range of 0°C to 70°C and accepts input voltages from VOUT + 0.5V up to 20V. It draws a typical supply current of 35µA and supports a minimum output drive current of 50mA. The component is housed in an 8-lead plastic SO package.

Voltage Reference Feature Summary

• Combines high accuracy and low drift with low supply current and high output drive capability
• Utilizes advanced curvature compensation techniques for low temperature coefficient performance
• Incorporates trimmed precision thin-film resistors to achieve high output accuracy
• Includes power shutdown functionality and thermal limiting protection

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 'A' grade designation matches the required 0.04% accuracy and 3ppm/°C temperature coefficient specifications for your design. Ensure the commercial temperature range of 0°C to 70°C aligns with your operational environment requirements before finalizing procurement.

Voltage Reference Selection Notes

Select this component when designing systems requiring a stable 2.5V reference with minimal power consumption. The low dropout characteristic ensures efficiency in battery-powered applications. Consider the 50mA output drive if the reference must directly power downstream loads without additional buffering. Verify that the 8-lead SO package fits the available PCB real estate.

Voltage Reference Part Context

This part belongs to the LT1461 family of micropower precision low dropout series voltage references. The family offers various output voltage options including 3V, 3.3V, 4.096V, and 5V. Different grades (A, B, C) provide varying levels of accuracy and temperature stability. The LT1461 is designed to replace standard LDO regulators in precision applications due to its superior regulation characteristics.

Voltage Reference Replacement Considerations

LT1461BCS8-2.5#TRPBF offers 0.06% accuracy and 7ppm/°C drift. LT1461CCS8-2.5#TRPBF provides 0.08% accuracy and 12ppm/°C drift. LT1461AIS8-2.5#TRPBF extends the operating temperature range to -40°C to 85°C while maintaining 0.04% accuracy.