LT1790ACS6-1.25#TRPBF

Voltage Reference Overview

The LT1790ACS6-1.25#TRPBF is a micropower series voltage reference from Analog Devices, housed in a 6-lead TSOT-23 package. It provides a fixed output voltage of 1.25V with an initial accuracy of ±0.05%. The device features a maximum temperature coefficient of 10ppm/°C and operates within a commercial temperature range of 0°C to 70°C. It draws a maximum supply current of 60µA and supports a wide input voltage range up to 18V.

Voltage Reference Feature Summary

• Curvature compensation combined with trimmed precision thin-film resistors ensures high output accuracy and low drift.
• Post-package trimming significantly reduces the temperature coefficient and enhances output stability.
• Capable of sourcing and sinking current, allowing operation as a micropower negative voltage reference.
• Designed for minimal thermally induced hysteresis and low dropout voltage suitable for battery-powered 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 ordering suffix #TRPBF confirms tape and reel packaging with lead-free finish. Ensure the 'S6' designation matches the required 6-lead TSOT-23 package variant. Confirm the 'A' grade corresponds to the specified 0.05% accuracy and 10ppm/°C temperature coefficient requirements for your design.

Voltage Reference Selection Notes

Select this component when high precision is required in a small form factor. The A-grade specification offers tighter tolerance than B-grade options. Consider the low supply current for power-sensitive designs. Verify that the 0°C to 70°C commercial temperature range meets environmental constraints; otherwise, consider the I-grade industrial variants.

Voltage Reference Part Context

This part belongs to the LT1790 family of micropower SOT-23 low dropout references. The family combines high accuracy with low power dissipation. Other available output voltages include 2.048V, 2.5V, 3V, 3.3V, 4.096V, and 5V. Variants exist for both commercial and industrial temperature ranges.

Voltage Reference Replacement Considerations

LT1790BCS6-1.25#TRPBF (B Grade, 0.1% Accuracy)

Voltage Reference FAQ

Can the LT1790ACS6-1.25#TRPBF operate as a negative voltage reference?

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

What is the specified temperature range for this specific part number?

The LT1790ACS6-1.25#TRPBF is specified for a commercial temperature range of 0°C to 70°C.