LT1790AIS6-3.3#TRMPBF

Voltage Reference Overview

The LT1790AIS6-3.3#TRMPBF is a micropower series voltage reference from Analog Devices, housed in a 6-lead TSOT-23 package. It provides a fixed output of 3.3V with an initial accuracy of ±0.05% and a temperature coefficient of 10ppm/°C. The device operates within a supply voltage range of 3.8V to 18V and draws a maximum supply current of 80µA. It functions reliably across an 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 thermal hysteresis and enhances output stability.

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 #TRMPBF indicates tape and reel packaging containing 500 units. Confirm the AIS6 designation corresponds to the A grade (±0.05%) and industrial temperature range (-40°C to 85°C). Ensure compatibility with the required 3.3V output specification before procurement.

Voltage Reference Selection Notes

Select this component when low power consumption and compact size are critical for battery-operated systems. The A grade offers superior initial accuracy compared to the B grade. Consider the minimum dropout voltage requirements relative to the input supply to ensure stable regulation under all load conditions.

Voltage Reference Part Context

This part belongs to the LT1790 family of micropower SOT-23 low dropout references. The family combines high accuracy with low power dissipation. The 'AIS6' code specifies the A grade accuracy, industrial temperature range, and 6-lead ThinSOT package format.

Voltage Reference Replacement Considerations

LT1790BIS6-3.3#TRMPBF

Voltage Reference FAQ

Can the LT1790AIS6-3.3 be used as a negative voltage reference?

Yes, because it can sink current, it can operate as a micropower negative voltage reference with performance similar to its positive operation.

What is the significance of the post-package trimming?

Post-package trimming greatly reduces the temperature coefficient and increases the output accuracy beyond what is achieved during wafer-level processing.