LT1790AIS6-2.5#TRMPBF

Voltage Reference Overview

The LT1790AIS6-2.5#TRMPBF is a micropower low dropout series voltage reference manufactured by Analog Devices Inc., housed in a 6-lead TSOT-23 package. It provides a fixed output voltage of 2.5V with an initial accuracy of ±0.05% and a maximum temperature coefficient of 10ppm/°C. The device operates within a supply voltage range of 3V to 18V, drawing a maximum supply current of 80µA. It supports both sourcing up to 5mA and sinking up to 3mA 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 precision and low drift.
• Capable of sourcing and sinking current for versatile positive or negative reference applications.
• Designed for minimal 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 #TRMPBF indicates tape and reel packaging with restricted availability. Confirm the AIS6 designation matches the required A-grade accuracy (0.05%) and industrial temperature range (-40°C to 85°C). Ensure compatibility with the 6-lead TSOT-23 footprint during procurement planning.

Voltage Reference Selection Notes

Select this component when high accuracy and low power consumption are critical in space-constrained designs. The A-grade specification offers tighter tolerance than B-grade options. Consider the low dropout characteristics for efficient operation near minimum supply voltages compared to shunt references.

Voltage Reference Part Context

This part belongs to the LT1790 family of micropower SOT-23 low dropout references. The 'AI' prefix denotes the A-grade accuracy class and industrial temperature rating, while 'S6' specifies the 6-lead ThinSOT package. The '#TRMPBF' suffix confirms lead-free tape and reel packaging.

Voltage Reference Replacement Considerations

LT1790BIS6-2.5#TRMPBF offers similar functionality with 0.1% accuracy and 25ppm/°C drift.

Voltage Reference FAQ

Can the LT1790AIS6-2.5 be used as a negative voltage reference?

Yes, because it can sink current, it operates effectively as a micropower negative voltage reference with performance comparable to its positive reference mode.

What is the maximum input voltage for this device?

The absolute maximum input voltage is 20V, though the specified operational range extends up to 18V.