LT1790ACS6-3.3#TRMPBF

Voltage Reference Overview

The LT1790ACS6-3.3#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 3.3V with an initial accuracy of ±0.05% and a maximum temperature coefficient of 10ppm/°C. The device operates within a supply voltage range of 3.8V to 18V and draws a maximum supply current of 80µA. Designed for commercial applications, it functions reliably between 0°C and 70°C.

Voltage Reference Feature Summary

• Utilizes curvature compensation and trimmed precision thin-film resistors to achieve high output accuracy and low drift.
• Capable of both sourcing and sinking current, allowing operation as a micropower negative voltage reference.
• Features post-package trimming to minimize thermally induced hysteresis and enhance line and load regulation.

Voltage Reference Applications

• Handheld Instruments
• Negative Voltage References
• Industrial Control Systems
• Data Acquisition Systems
• Battery-Operated Equipment

Voltage Reference Procurement Notes

Verify the specific ordering suffix #TRMPBF confirms tape and reel packaging containing 500 units. Ensure the 'S6' designation matches the required 6-lead TSOT-23 footprint. Confirm the 'AC' grade aligns with the necessary 0.05% accuracy and 10ppm/°C drift specifications for the target application environment.

Voltage Reference Selection Notes

Select this component when a compact, low-power reference is required for battery-operated systems. The A-grade specification ensures tight tolerance suitable for precision data acquisition. Consider the low dropout characteristics if the input voltage source is close to the nominal output level.

Voltage Reference Part Context

This part belongs to the LT1790 family of micropower SOT-23 low dropout references. The family offers various output voltages including 1.25V, 2.048V, 2.5V, 3V, 3.3V, 4.096V, and 5V. The AC suffix denotes the A-grade performance tier, while the S6 indicates the specific package type used across the series.

Voltage Reference Replacement Considerations

LT1790AIS6-3.3#TRMPBF (Industrial Grade)

Voltage Reference FAQ

Can the LT1790ACS6-3.3 be used as a negative voltage reference?

Yes, because the device 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 for this specific 3.3V model?

For the 3.3V option, the minimum operating voltage is typically 3.8V to ensure proper regulation under no-load conditions.