ADR290GT9

Overview

The ADR290GT9 is a micropower precision voltage reference manufactured by Analog Devices Inc. It provides a fixed output voltage of 2.048 V with an initial accuracy of ±0.29%. The device operates within a supply voltage range of 2.3 V to 16 V and draws a typical quiescent current of 75 µA. It features low noise performance, specified as 6 µVp-p in the 0.1 Hz to 10 Hz bandwidth. The component is housed in a TO-92-3 (TO-226AA) package and supports through-hole mounting. It functions reliably across an extended temperature range from -40°C to +125°C.

Feature Summary

• Micropower operation with low quiescent current consumption
• Low noise performance suitable for sensitive analog circuits
• High initial accuracy for precision measurement applications

Applications

• Portable instrumentation systems requiring low power consumption
• Battery-powered data acquisition modules
• Precision sensor signal conditioning circuits

Procurement Notes

Verify the specific suffix GT9 corresponds to the TO-92-3 package variant when sourcing. Confirm availability status as distribution channels may report limited stock or end-of-life conditions. Ensure the supplier provides valid traceability documentation for quality assurance purposes before finalizing procurement orders.

Selection Notes

Select this component when a stable 2.048 V reference is required with minimal power draw. Compare against other series references if higher output voltages are needed. Consider the TO-92 package constraints regarding thermal dissipation and board space compared to surface-mount alternatives.

Part Context

This part belongs to the ADR29x series of micropower precision voltage references from Analog Devices. It shares architectural similarities with the ADR291 and ADR293 but differs in its specific 2.048 V output setting. The series is designed for applications demanding high stability and low power consumption in compact form factors.

Replacement Considerations

Direct substitutes include other parts within the ADR29x family offering different fixed voltages, such as the ADR291 or ADR293, provided the output voltage requirement changes. Verify pinout compatibility and thermal characteristics when replacing with components from other manufacturers.