LT1790BIS6-4.096#TRMPBF

Voltage Reference Overview

The LT1790BIS6-4.096#TRMPBF is a micropower low dropout series voltage reference from Analog Devices, packaged in a 6-lead plastic TSOT-23. It provides a fixed output voltage 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 no-load supply current of 80µA. It supports both sourcing up to 5mA and sinking up to 3mA of load current. The component is guaranteed functional over an operating temperature range of –40°C to 125°C.

Voltage Reference Feature Summary

• Combines curvature compensation and trimmed precision thin-film resistors for high accuracy and low drift
• Capable of sourcing and sinking current to function as a positive or negative voltage reference
• Post-package trimmed to minimize thermally induced hysteresis and enhance 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, distinct from standard reel quantities. Confirm the B grade designation corresponds to the required 0.1% accuracy and 25ppm/°C temperature coefficient specifications for your design. Ensure the industrial temperature rating aligns with environmental requirements.

Voltage Reference Selection Notes

Select this part when a compact SOT-23 footprint is required alongside micropower consumption. The B grade offers a balance between cost and performance, suitable for applications tolerating slightly higher drift than A grade parts. Consider the minimum input-output differential voltage constraints when designing the power supply rail relative to the 4.096V output.

Voltage Reference Part Context

This component belongs to the LT1790 family of micropower references, designed to replace larger shunt references while maintaining precision. The ThinSOT package allows for space-constrained designs typical in portable electronics. The family utilizes similar internal architectures across various voltage options, ensuring consistent performance characteristics throughout the product line.

Voltage Reference Replacement Considerations

LT1790AIS6-4.096#TRMPBF

Voltage Reference FAQ

Can the LT1790BIS6-4.096 generate a negative voltage?

Yes, because the device can sink current, it can operate as a micropower negative voltage reference with the same performance characteristics as its positive operation mode.

What is the difference between the A and B grades?

The A grade offers higher accuracy (±0.05%) and lower drift (10ppm/°C), while the B grade provides ±0.1% accuracy and 25ppm/°C drift.