ADR392WBUJZ-R7

Overview

The ADR392WBUJZ-R7 is a micropower, low noise precision voltage reference with an output of 4.096 V. It features a B grade temperature coefficient of 9 ppm/°C and initial accuracy of ±5 mV (±0.12%). The device operates within a supply range of 4.3 V to 15 V, drawing 140 μA maximum quiescent current. It includes a shutdown mode consuming 3 μA and supports up to 5 mA output current in a compact TSOT-23-5 package.

Feature Summary

• Patented curvature correction techniques achieve low temperature drift.
• Integrated shutdown pin reduces power consumption significantly.
• No external capacitors required for circuit stability.
• Capable of driving capacitive loads without oscillation.

Applications

• Battery-powered instrumentation
• Portable medical instrumentation
• Data acquisition systems
• Industrial process controls

Procurement Notes

Verify the specific suffix R7 indicates reel packaging when sourcing. Confirm the W prefix denotes automotive qualification status if required by the design. Ensure the BUJZ designation matches the intended TSOT-23-5 footprint. Cross-reference the manufacturer's latest datasheet revision for any updates to absolute maximum ratings or thermal characteristics before finalizing procurement.

Selection Notes

Select this component for applications requiring high precision in a small form factor. The low dropout voltage allows operation from minimal supply margins above the 4.096 V output. Consider the shutdown feature for battery life extension. Verify that the 9 ppm/°C drift meets the system's long-term stability requirements across the full industrial temperature range.

Part Context

This part belongs to the ADR39x family of band gap voltage references manufactured by Analog Devices. The series includes variants with different fixed output voltages such as 2.5 V and 5.0 V. All members share the same low-power architecture and compact TSOT package, designed for space-constrained portable electronics.

Replacement Considerations

ADR392AUJZ-R2

FAQ

Is an external capacitor required for stability?

No, the ADR392 does not require external capacitors for stability under any load condition.

How does the shutdown pin function?

Applying a logic low or 0 V to the SHDN pin turns the device off, reducing supply current to 3 μA.