LT1019CH-5

Voltage Reference Overview

The LT1019CH-5 is a precision voltage reference manufactured by Analog Devices Inc. It provides a fixed output voltage of 5V with an initial accuracy tolerance of ±0.2%. The device features a temperature coefficient of 20ppm/°C and operates within the commercial temperature range of 0°C to 70°C. It utilizes thin film technology and curvature correction for low drift. The component supports both series and shunt operation modes, sourcing or sinking up to 10mA. It is housed in an 8-lead SOIC (S8) package.

Voltage Reference Feature Summary

• Third-generation bandgap design utilizing thin film technology and improved curvature correction techniques.
• Capable of both sourcing and sinking current up to 10mA for flexible circuit integration.
• Supports series or shunt operational modes without requiring external components.
• Features wafer-level trimming of both reference and output voltage for tight tolerances.

Voltage Reference Applications

• A/D and D/A converters
• Precision regulators
• Constant current sources
• Bridge excitation

Voltage Reference Procurement Notes

Verify the specific suffix 'CH' against the manufacturer's ordering guide to confirm the exact temperature grade and package configuration. Ensure compatibility with existing board layouts regarding the 8-lead SOIC footprint. Confirm that the 0°C to 70°C commercial rating meets the environmental requirements of the target application before finalizing procurement.

Voltage Reference Selection Notes

Select this part when a 5V fixed output is required with moderate precision. The 20ppm/°C temperature coefficient suits general industrial applications where extreme stability is not critical. Consider the LT1019ACH-5 if tighter initial accuracy and lower drift are necessary. Verify power dissipation limits relative to the thermal resistance of the SO-8 package during high load conditions.

Voltage Reference Part Context

The LT1019 series represents a third-generation bandgap voltage reference family from Analog Devices. It serves as a direct replacement for legacy references such as the AD580, REF-01, and LM168. The family offers multiple voltage options including 2.5V, 4.5V, 5V, and 10V across various packages like TO-5, PDIP, and SOIC.

Voltage Reference Replacement Considerations

LT1019CS8-5

Voltage Reference FAQ

Can the LT1019CH-5 operate in negative voltage configurations?

Yes, the LT1019 can be used in either series or shunt mode, allowing it to operate with positive or negative output voltages without external components.

What is the minimum input/output voltage differential required?

The minimum input/output voltage differential is less than 1V in series mode, providing improved tolerance of low line conditions.