LT1461DHS8-3#PBF

Voltage Reference Overview

The LT1461DHS8-3#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 3V output with an initial accuracy of ±0.15% and a maximum temperature coefficient of 20ppm/°C over the –40°C to 125°C range. The device draws 35µA typical supply current and supports up to 100mA output short-circuit current. It features a shutdown pin for power management and 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 for system power down and full load current switching
• Provides 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 #PBF indicates tube packaging when sourcing. Confirm the DH grade corresponds to the required –40°C to 125°C operating range and 20ppm/°C temperature coefficient. Ensure compatibility with 8-lead SOIC footprints during PCB layout. Check for automotive variants if AEC-Q100 qualification is necessary.

Voltage Reference Selection Notes

Select this part for applications requiring wide industrial temperature operation with moderate precision. The 3V output suits systems needing direct reference without scaling. Consider the 35µA quiescent current for battery life. Evaluate thermal management needs as junction temperature limits affect long-term drift and hysteresis performance under high load or input voltage differentials.

Voltage Reference Part Context

This component belongs to the LT1461 family of micropower bandgap references. The DH designation specifies the high-temperature grade variant. Other grades include AC, BC, CC for commercial ranges and AIS, BIS, CIS for extended industrial ranges. The family shares identical pinouts and functional characteristics across voltage options.

Voltage Reference Replacement Considerations

LT1461DHS8-3#TRPBF