LT1461DHS8-3.3#TRPBF

Voltage Reference Overview

The LT1461DHS8-3.3#TRPBF is a micropower precision low dropout series voltage reference manufactured by Analog Devices Inc. It provides a fixed output voltage of 3.3V with an initial accuracy of ±0.15% and a maximum temperature coefficient of 20ppm/°C. The device operates within a supply voltage range from VOUT + 0.5V to 20V, drawing a typical supply current of 35µA and a maximum of 70µA. It features a shutdown pin for power management and supports a minimum output current of 50mA. The component is housed in an 8-lead plastic SO package and is guaranteed functional over the industrial temperature range of –40°C to 125°C.

Voltage Reference Feature Summary

• Advanced curvature compensation techniques combined with trimmed precision thin-film resistors ensure high output accuracy and low drift across temperature variations.
• Integrated shutdown capability allows switching full load currents and enables system power down while maintaining low quiescent current consumption.
• Built-in thermal limiting and shutdown protection safeguards the device against overload conditions and excessive junction temperatures.

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing this part number. Confirm that the DH grade corresponds to the required –40°C to 125°C operating temperature range and 20ppm/°C temperature coefficient specifications for your design requirements.

Voltage Reference Selection Notes

Select this component when a fixed 3.3V reference with high precision and wide temperature stability is required. The low dropout characteristic ensures efficiency in battery-powered systems, while the high output drive capability supports direct loading without additional buffering stages.

Voltage Reference Part Context

This part belongs to the LT1461 family of micropower precision low dropout series voltage references. The DH designation specifically identifies the grade offering ±0.15% initial accuracy and 20ppm/°C max temperature coefficient over the extended –40°C to 125°C range, distinguishing it from commercial or industrial grades.

Voltage Reference Replacement Considerations

LT1461DHS8-3.3#PBF