LT1790BIS6-2.048#TRPBF

Voltage Reference Overview

The LT1790BIS6-2.048#TRPBF is a micropower low dropout series voltage reference from Analog Devices, featuring a fixed output of 2.048V in a 6-lead TSOT-23 package. It belongs to the B grade with an initial accuracy of ±0.1% and a maximum temperature coefficient of 25ppm/°C. The device operates within a supply range of 2.8V to 18V, drawing a maximum no-load supply current of 80µA. It supports both sourcing up to 5mA and sinking up to 3mA currents, ensuring stable performance across industrial temperatures from -40°C to 85°C.

Voltage Reference Feature Summary

• Curvature compensation and post-package trimming ensure high precision and low drift
• Capable of sourcing and sinking current for versatile positive or negative reference applications
• Low power dissipation suitable for battery-operated systems

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 lead-free tape and reel packaging. Confirm the 'I' designation corresponds to the industrial temperature range (-40°C to 85°C) and the 'B' grade specifies the required ±0.1% accuracy. Ensure compatibility with the 6-lead TSOT-23 footprint during procurement validation.

Voltage Reference Selection Notes

Select this component when a fixed 2.048V reference is required with strict accuracy limits of ±0.1%. It is appropriate for designs needing low quiescent current below 80µA and operation in environments ranging from -40°C to 85°C. Consider its ability to sink current if negative reference generation is necessary.

Voltage Reference Part Context

This part is a member of the LT1790 family of micropower SOT-23 low dropout references. The family utilizes thin-film resistors and curvature compensation to achieve high accuracy. Variants differ by output voltage options (1.25V to 5V), accuracy grades (A or B), and temperature ranges (commercial or industrial).

Voltage Reference Replacement Considerations

LT1790BIS6-2.048#PBF

Voltage Reference FAQ

Can the LT1790BIS6-2.048 be used as a negative voltage reference?

Yes, because it 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 regulation error when sourcing current?

When sourcing 5mA, the maximum load regulation error is 280ppm/mA.