LT1461ACS8-5#PBF

Voltage Reference Overview

The LT1461ACS8-5#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 ±0.04% and a maximum temperature coefficient of 3ppm/°C. The device operates within a commercial temperature range of 0°C to 70°C, drawing a typical supply current of 35µA and supporting up to 50mA of output drive current. It features a shutdown pin for power management and thermal limiting protection.

Voltage Reference Feature Summary

• Advanced curvature compensation and trimmed thin-film resistors ensure high accuracy and low drift
• Micropower operation with low supply current suitable for portable applications
• Integrated shutdown control allows switching full load currents and system power down
• Thermal limiting protects the device from overload conditions

Voltage Reference Applications

• Analog-to-digital and digital-to-analog converters
• Precision regulators
• Handheld instruments
• Power supplies

Voltage Reference Procurement Notes

Verify the specific suffix #PBF indicates lead-free finish and tube packaging when sourcing. Confirm the ACS8 grade corresponds to the required 0°C to 70°C commercial operating range and ±0.04% accuracy specifications. Ensure the 8-lead SOIC package dimensions match the target PCB footprint requirements before finalizing procurement.

Voltage Reference Selection Notes

Select this component when a fixed 5V reference with high precision (±0.04%) and low drift (3ppm/°C) is required. It is suitable for designs needing micropower consumption alongside moderate output drive capability. Consider the commercial temperature range limits and the availability of the shutdown feature for power management strategies in the system architecture.

Voltage Reference Part Context

This part belongs to the LT1461 family of micropower precision low dropout series voltage references. The family utilizes advanced curvature compensation techniques to achieve low temperature coefficients and uses trimmed precision thin-film resistors for high output accuracy across various voltage options.

Voltage Reference Replacement Considerations

LT1461BCS8-5#PBF offers lower accuracy (0.06%). LT1461CCS8-5#PBF provides reduced accuracy (0.08%). LT1461AIS8-5#PBF extends the operating temperature range to –40°C to 85°C while maintaining identical electrical performance.