LT1790ACS6-2.5#TRPBF

Voltage Reference Overview

The LT1790ACS6-2.5#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 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 and draws a maximum no-load supply current of 80µA. It supports both sourcing up to 5mA and sinking up to 3mA currents, ensuring stable performance across specified load conditions.

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 excellent 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 suffix #TRPBF indicates tape and reel packaging with lead-free finish. Confirm the 'A' grade designation corresponds to the required 0.05% accuracy and 10ppm/°C temperature coefficient specifications. Ensure the commercial temperature range (0°C to 70°C) aligns with system requirements, as industrial variants use different suffixes.

Voltage Reference Selection Notes

Select this component when high precision and low power consumption are critical in space-constrained designs. The TSOT-23 package offers a low profile suitable for portable applications. Consider the minimum operating voltage differential relative to the load current requirements to ensure proper dropout performance under all operating conditions.

Voltage Reference Part Context

This part belongs to the LT1790 family of micropower SOT-23 low dropout references. The family combines high accuracy with small package size and low supply current. Variants are available in different output voltages and grades, with the 'A' grade offering superior accuracy compared to the 'B' grade.

Voltage Reference Replacement Considerations

LT1790BCS6-2.5#TRPBF

Voltage Reference FAQ

Can the LT1790ACS6-2.5#TRPBF operate as a negative voltage reference?

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

What is the maximum supply voltage for this device?

The maximum input voltage is 18V, with absolute maximum ratings allowing up to 20V.