LT1790ACS6-3#TRPBF

Voltage Reference Overview

The LT1790ACS6-3#TRPBF 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 ±0.05% and a maximum temperature coefficient of 10ppm/°C. The device operates within a supply voltage range of 3.5V 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

• Combines high accuracy and low drift with low power dissipation and small package size
• Uses curvature compensation and trimmed precision thin-film resistors for stability
• Post-package trimmed to reduce temperature coefficient and increase output accuracy
• Capable of sinking and sourcing current for positive or negative reference operation

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 #TRPBF confirms tape and reel packaging with lead-free finish. Confirm the 'S6' designation matches the required 6-lead TSOT-23 package type. Ensure 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 fixed 3V reference is required in space-constrained designs. The AC grade offers superior initial accuracy compared to the B grade. Consider the minimum operating voltage requirements relative to the 3V output; ensure the input supply exceeds the dropout voltage under all load conditions. Verify thermal management needs given the small package footprint.

Voltage Reference Part Context

Part of the LT1790 family of micropower SOT-23 low dropout references. This family integrates high accuracy with low power consumption, utilizing curvature compensation technology. The LT1790 series is designed to replace bulkier shunt references while maintaining precision in battery-operated systems.

Voltage Reference Replacement Considerations

LT1790BCS6-3#TRPBF (B Grade, 0.1% accuracy)

Voltage Reference FAQ

Can the LT1790ACS6-3 be used as a negative voltage reference?

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

What is the specified temperature range for the LT1790ACS6-3?

The LT1790ACS6-3 is specified for a commercial temperature range of 0°C to 70°C.