LT1461DHS8-4#TRPBF

Voltage Reference Overview

The LT1461DHS8-4#TRPBF is a micropower precision low dropout series voltage reference from Analog Devices, housed in an 8-lead plastic SO package. It provides a fixed 4.096V output with an initial accuracy of ±0.15% and a maximum temperature coefficient of 20ppm/°C. The device operates over a –40°C to 125°C range, drawing 35µA typical supply current while supporting up to 50mA output drive. 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
• Low dropout voltage design maximizes battery life in portable applications
• Integrated shutdown capability allows system power down and load current switching
• Thermal shutdown protects the component from 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 #TRPBF indicates tape and reel packaging when sourcing this part number. Confirm the DH grade corresponds to the required –40°C to 125°C operating temperature range and 0.15% accuracy specifications. Ensure compatibility with existing board layouts requiring an 8-lead SOIC footprint.

Voltage Reference Selection Notes

Select this variant for applications requiring a 4.096V reference with industrial/high-temperature operation capabilities. The DH grade offers lower initial accuracy compared to AC or BC grades but extends the functional temperature range. Consider the 50mA drive capability if driving moderate loads directly without additional buffering.

Voltage Reference Part Context

This component belongs to the LT1461 family of micropower precision low dropout series voltage references. The family combines high accuracy with low supply current and high output drive. Other variants in the series include different output voltages such as 2.5V, 3V, 3.3V, and 5V, along with varying accuracy grades like AC, BC, CC, and HS.

Voltage Reference Replacement Considerations

LT1461DHS8-4#PBF is the tube version of the same electrical specification.