LT1790AIS6-3#TRPBF

Voltage Reference Overview

The LT1790AIS6-3#TRPBF is a micropower series voltage reference from Analog Devices, housed in a 6-lead TSOT-23 package. It provides a fixed output of 3V with an initial accuracy of ±0.05% and a maximum temperature coefficient of 10ppm/°C. The device operates within a supply voltage range of 3.5V to 18V and draws a maximum supply current of 80µA. It supports both sourcing up to 5mA and sinking up to 3mA currents, ensuring stable performance across the industrial temperature range of -40°C to +85°C.

Voltage Reference Feature Summary

• Curvature compensation and trimmed thin-film resistors ensure high precision and low drift.
• Capable of sourcing and sinking current for flexible positive or negative reference configurations.
• Post-package trimming minimizes temperature coefficient and maximizes output accuracy.
• Low thermal hysteresis design reduces voltage shifts caused by package stress.

Voltage Reference Applications

• Handheld Instruments
• Negative Voltage References
• Industrial Control Systems
• Data Acquisition Systems
• Battery-Operated Equipment

Voltage Reference Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm the AIS6 designation matches the required A-grade accuracy (-40°C to 85°C) and 3V output option. Ensure compatibility with standard SMD/SMT assembly processes for the TSOT-23 package. Check for RoHS compliance status if required by your manufacturing standards.

Voltage Reference Selection Notes

Select this component for applications requiring high accuracy in a small footprint with minimal power consumption. The A-grade specification ensures tight tolerance limits suitable for precision measurement systems. Consider the dropout voltage requirements relative to the minimum input voltage to maintain regulation during battery discharge cycles.

Voltage Reference Part Context

This part belongs to the LT1790 family of micropower low dropout references. The family combines high accuracy with low power dissipation, utilizing curvature compensation for stability. The TSOT-23 package offers a low profile suitable for space-constrained designs, while the internal architecture supports both sourcing and sinking capabilities.

Voltage Reference Replacement Considerations

LT1790AIS6-3#PBF (Tube version)

Voltage Reference FAQ

Can the LT1790AIS6-3 be used as a negative voltage reference?

Yes, because the device can sink current, it can operate as a micropower negative voltage reference with the same performance characteristics as a positive reference.

What is the maximum load current capability?

The device can source up to 5mA and sink up to 3mA, allowing for flexible load driving in both directions.