LT1461CIS8-5#PBF

Voltage Reference Overview

The LT1461CIS8-5#PBF is a micropower precision low dropout series voltage reference manufactured by Analog Devices Inc. It provides a fixed 5V output with an initial accuracy of ±0.08% and a maximum temperature coefficient of 12ppm/°C over the specified industrial temperature range of –40°C to 85°C. The device operates within an input voltage range of 5.5V to 20V, drawing a typical supply current of 35µA. It features a shutdown pin for power management and includes thermal limiting protection.

Voltage Reference Feature Summary

• Combines high accuracy and low drift with low supply current and high output drive capability
• Utilizes advanced curvature compensation techniques and trimmed precision thin-film resistors
• Includes a shutdown feature to switch full load currents and enable system power down
• Incorporates thermal shutdown protection against overload conditions

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific suffix 'CI' corresponds to the required industrial temperature grade (–40°C to 85°C) and that the '#PBF' designation confirms lead-free packaging compliance. Confirm the SOIC-8 package type matches the PCB footprint requirements. Ensure the 5V output variant aligns with the system design specifications before finalizing procurement orders.

Voltage Reference Selection Notes

Select this component when a fixed 5V reference with ±0.08% initial accuracy and 12ppm/°C drift is required in an industrial environment. It is suitable for applications needing micropower operation alongside moderate output drive capabilities. Consider the shutdown functionality if system power management is a priority. Verify that the SOIC-8 package dimensions fit the available board space constraints.

Voltage Reference Part Context

This part belongs to the LT1461 family of micropower precision low dropout series voltage references. The family offers various output voltages and accuracy grades, including commercial, industrial, and high-temperature options. The LT1461 series is designed for applications requiring stable reference voltages with minimal power consumption and robust performance across varying load and line conditions.

Voltage Reference Replacement Considerations

LT1461CIS8-5#TRPBF