LT1790BCS6-4.096#TRMPBF

Voltage Reference Overview

The LT1790BCS6-4.096#TRMPBF is a micropower series voltage reference from Analog Devices, housed in a 6-lead TSOT-23 package. It provides a fixed output of 4.096V with an initial accuracy of ±0.1% and a maximum temperature coefficient of 25ppm/°C. The device operates within a supply voltage range of 4.6V to 18V and draws a maximum supply current of 80µA. It supports sourcing up to 5mA and sinking up to 3mA, ensuring stable performance across commercial (0°C to 70°C) and industrial (-40°C to 85°C) temperature ranges.

Voltage Reference Feature Summary

• Curvature compensation and post-package trimming ensure high precision and low drift.
• Capable of both sourcing and sinking current for flexible circuit design.
• Low dropout voltage minimizes power dissipation in 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 #TRMPBF indicates tape and reel packaging with restricted quantities. Confirm the B grade designation matches the required 0.1% accuracy and 25ppm/°C drift specifications. Ensure the TSOT-23-6 footprint aligns with the PCB layout. Check lead-free compliance status if RoHS requirements are mandatory for the assembly process.

Voltage Reference Selection Notes

Select this component when a compact, low-power reference is needed for applications requiring moderate accuracy. The B grade offers a balance between cost and performance compared to the higher-precision A grade. Consider the thermal hysteresis characteristics if the device undergoes significant temperature cycling during operation or storage.

Voltage Reference Part Context

This part belongs to the LT1790 family of micropower SOT-23 low dropout references. The family utilizes thin-film resistors for trimmed precision. Variants include different output voltages and grades (A/B) with varying accuracy levels. The CS6 suffix denotes the commercial temperature range variant in the ThinSOT package.

Voltage Reference Replacement Considerations

LT1790BCS6-4.096#TRPBF

Voltage Reference FAQ

Can the LT1790BCS6-4.096 be used as a negative voltage reference?

Yes, because it can sink current, it can operate as a micropower negative voltage reference while maintaining positive reference performance.

What is the minimum operating voltage for the 4.096V output option?

The minimum input voltage is 4.6V to maintain regulation at no load.