LT1461DHS8-5#PBF

Voltage Reference Overview

The LT1461DHS8-5#PBF is a micropower precision low dropout series voltage reference from Analog Devices, housed in an 8-lead plastic SO package. It provides a fixed 5V output with an initial accuracy of ±0.15% and a maximum temperature coefficient of 20ppm/°C over the –40°C to 125°C operating range. The device draws 35µA typical supply current and supports up to 100mA output short-circuit current. Key features include a shutdown pin for power management, thermal limiting protection, and stability with minimal external capacitance.

Voltage Reference Feature Summary

• Advanced curvature compensation techniques ensure low temperature drift and high output accuracy.
• Integrated shutdown capability 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
• 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 DH grade corresponds to the required –40°C to 125°C temperature range and ±0.15% accuracy. Ensure compatibility with 8-lead SOIC footprints during PCB design. Check for any automotive-specific variants if AEC-Q100 qualification is necessary for the target application environment.

Voltage Reference Selection Notes

Select this part when high accuracy and wide temperature operation are required alongside low quiescent current. The 5V output option suits systems needing standard logic levels or ADC references. Consider the 20ppm/°C drift specification against system error budgets. The shutdown feature adds value for battery-powered designs requiring extended standby times without sacrificing drive capability during active periods.

Voltage Reference Part Context

This component belongs to the LT1461 family of micropower precision low dropout series voltage references. The family combines bandgap reference technology with trimmed thin-film resistors. Other members include ACS, AIS, BCS, BIS, CCS, and CIS grades offering varying accuracy and temperature ranges. The DHS grade specifically targets high-temperature industrial applications.

Voltage Reference Replacement Considerations

LT1461DHS8-5#TRPBF