ADR381ART-REEL7

Overview

The ADR381ART-REEL7 is a precision band gap voltage reference providing a nominal output of 2.500 V in a compact 3-lead SOT-23 package. It features an initial accuracy error of ±6 mV (±0.24%) and a maximum temperature coefficient of 25 ppm/°C across the industrial range of −40°C to +85°C. The device operates with a supply voltage from 2.8 V to 18 V, drawing a maximum quiescent current of 120 μA while delivering up to 5 mA of load current.

Feature Summary

• Patented temperature drift curvature correction techniques minimize nonlinearity of the voltage change with temperature.
• Micropower low dropout voltage (LDV) architecture provides stable output from supplies as low as 300 mV above the output voltage.
• High stability and high accuracy performance suitable for precision applications.

Applications

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

Procurement Notes

Verify the specific ordering suffix matches the required reel quantity. The ARTZ designation indicates RoHS compliance. Confirm the pinout configuration aligns with standard SOT-23 layouts before integration. Ensure supply voltage constraints are respected within the specified operating range to maintain performance specifications.

Selection Notes

Select this component when a fixed 2.500 V reference is required in space-constrained designs. It is appropriate for applications needing low power consumption alongside moderate output current capabilities. Consider the thermal resistance characteristics if operating near maximum junction temperatures or ambient limits.

Part Context

This part belongs to the ADR38x series of precision voltage references manufactured by Analog Devices. It shares architectural similarities with the ADR380 but offers a distinct 2.500 V output level. The series utilizes patented curvature correction to achieve low drift performance in a tiny footprint.

Replacement Considerations

ADR380ARTZ-REEL7

FAQ

What is the minimum supply voltage headroom required for the ADR381?

The device requires a minimum input-to-output differential voltage of 300 mV when the load current is less than or equal to 2 mA.

Is an output capacitor required for stability?

No, the ADR381 does not require an output capacitor for stability under any load condition, though one may be used to reduce noise.