LT1790BIS6-3#TRMPBF

Voltage Reference Overview

The LT1790BIS6-3#TRMPBF is a micropower low dropout series voltage reference from Analog Devices, housed in a 6-lead plastic TSOT-23 package. It provides a fixed output voltage of 3V with an initial accuracy of ±0.1% and a maximum temperature coefficient of 25ppm/°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 and sinking currents, ensuring stable performance across the industrial temperature range of –40°C to +85°C.

Voltage Reference Feature Summary

• Curvature compensation and post-package trimming ensure high output accuracy and low drift.
• Capable of sourcing and sinking current for versatile positive or negative reference applications.
• Designed for battery-operated systems with low power dissipation and small package size.

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 with limited unit quantities per reel as defined by manufacturer specifications. Confirm the B grade accuracy and IS6 industrial temperature range match design requirements. Check for lead-free finish compliance and RoHS status before finalizing procurement orders.

Voltage Reference Selection Notes

Select this component when a fixed 3V reference with ±0.1% accuracy is required in a compact SOT-23 form factor. Ensure the application demands low quiescent current suitable for battery operation. Verify that the input voltage remains within the specified operational limits relative to the output voltage to maintain regulation.

Voltage Reference Part Context

This part belongs to the LT1790 family of micropower low dropout references. The 'B' designation indicates a 0.1% initial accuracy grade, while 'IS6' specifies the industrial temperature range and TSOT-23-6 package. The '#TRMPBF' suffix denotes lead-free tape and reel packaging.

Voltage Reference Replacement Considerations

LT1790AIS6-3#TRPBF offers higher accuracy (0.05%) but shares the same package and pinout.

Voltage Reference FAQ

Can the LT1790BIS6-3 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 minimum operating voltage differential for this device?

The minimum input-output voltage differential varies based on load conditions, typically ranging from approximately 120mV to 450mV depending on whether current is being sourced or sunk.