LT1790AIS6-1.25#TRPBF

Voltage Reference Overview

The LT1790AIS6-1.25#TRPBF is a micropower series voltage reference from Analog Devices, featuring a fixed 1.25V output in a 6-lead TSOT-23 package. It delivers high accuracy with an initial tolerance of ±0.05% and a maximum temperature coefficient of 10ppm/°C. The device operates within a supply voltage range of 2.6V to 18V and draws a maximum supply current of 60µA. Designed for industrial applications, it functions reliably across a specified temperature range of –40°C to 85°C.

Voltage Reference Feature Summary

• Curvature compensation and trimmed thin-film resistors ensure low drift and high precision.
• Post-package trimming minimizes temperature coefficient and enhances output accuracy.
• Capable of sourcing and sinking current for versatile positive or negative reference configurations.

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific ordering suffix #TRPBF corresponds to tape and reel packaging requirements. Confirm that the A-grade designation matches the required 0.05% accuracy and 10ppm/°C drift specifications. Ensure the industrial temperature range aligns with system environmental constraints before finalizing procurement.

Voltage Reference Selection Notes

Select this component when low power consumption is critical alongside high precision. The TSOT-23 package offers a compact solution for space-constrained designs. Consider the minimum operating voltage differential relative to the load current requirements to ensure stable regulation under all expected operating conditions.

Voltage Reference Part Context

This part belongs to the LT1790 family of micropower SOT-23 low dropout references. The 'AI' prefix indicates the A-grade performance level with tighter tolerances compared to B-grade variants. The 'S6' denotes the 6-lead ThinSOT package, while '#TRPBF' specifies lead-free tape and reel packaging.

Voltage Reference Replacement Considerations

LT1790AIS6-1.25#PBF (Same electrical specs, tube packaging)

Voltage Reference FAQ

Can the LT1790AIS6-1.25 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 input voltage for this device?

The absolute maximum input voltage rating is 20V, though the operational supply range extends up to 18V.