LT1461BCS8-4#PBF

Voltage Reference Overview

The LT1461BCS8-4#PBF is a micropower precision low dropout series voltage reference manufactured by Analog Devices Inc. It provides a fixed output voltage of 4.096V with an initial accuracy of ±0.06% and a maximum temperature coefficient of 7ppm/°C over the commercial operating range of 0°C to 70°C. The device operates within an input voltage range of 3.5V to 20V, drawing a typical supply current of 35µA. It features a minimum output drive capability of 50mA and a maximum dropout voltage of 300mV.

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 specified output accuracy
• Includes shutdown feature for system power down 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 #PBF indicates lead-free tube packaging when sourcing components. Confirm the B grade designation corresponds to the required ±0.06% accuracy and 7ppm/°C temperature coefficient specifications. Ensure the commercial temperature range of 0°C to 70°C meets the operational requirements of the target application environment before finalizing procurement decisions.

Voltage Reference Selection Notes

Select this component when a stable 4.096V reference is needed with moderate precision requirements. The B grade offers a balance between cost and performance compared to the higher accuracy A grade. Consider the 35µA supply current for battery-powered designs while ensuring the 50mA load drive capability matches the downstream circuit demands without exceeding thermal limits.

Voltage Reference Part Context

This part belongs to the LT1461 family of micropower precision low dropout series voltage references. The family includes various voltage options such as 2.5V, 3V, 3.3V, and 5V. The B grade specifically denotes the ±0.06% initial accuracy tier within the commercial temperature range segment of the product line.

Voltage Reference Replacement Considerations

LT1461BCS8-4#TRPBF serves as the tape and reel equivalent for automated assembly processes.