ADR380ART-REEL7

Overview

The ADR380ART-REEL7 is a precision band gap voltage reference providing a nominal output of 2.048 V in a compact 3-lead SOT-23 package. It features an initial accuracy error of ±5 mV (±0.24%) and a maximum temperature coefficient of 25 ppm/°C across the −40°C to +85°C range. The device operates with a supply voltage from 2.4 V to 18 V, drawing a maximum quiescent current of 120 μA while supporting up to 5 mA load current. Key performance metrics include 70 ppm/mA load regulation, 25 ppm/V line regulation, and 5 μV p-p noise in the 0.1 Hz to 10 Hz bandwidth.

Feature Summary

• Patented temperature drift curvature correction techniques minimize nonlinearity of voltage change over temperature.
• Micropower low dropout architecture provides stable output with as little as 300 mV headroom above the output voltage.
• High stability achieved through precision laser trimming and specialized circuit design for long-term reliability.

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm packaging quantity and RoHS compliance status. Ensure the component matches the exact part number required for your schematic, as variations exist within the series. Cross-reference the datasheet revision history for any updates to electrical characteristics or thermal resistance values before finalizing procurement specifications.

Selection Notes

Select this component when a fixed 2.048 V reference is required in space-constrained designs utilizing the SOT-23 footprint. It is suitable for applications demanding low power consumption under 120 μA while maintaining high accuracy. Consider the minimum operating input voltage requirements relative to the 2.048 V output when designing the power supply rail.

Part Context

This component belongs to the ADR38x family of micropower voltage references manufactured by Analog Devices. The family includes the ADR381 variant, which provides a 2.500 V output with similar electrical characteristics and packaging. Both devices share the same pinout and physical dimensions, facilitating design flexibility for different reference voltage needs within the same system architecture.

Replacement Considerations

ADR381ARTZ-REEL7

FAQ

Is an output capacitor required for stability?

No, the ADR380 does not require an output capacitor for stability under any load condition. However, adding one can reduce low-level noise and improve transient response.

What is the minimum supply voltage headroom?

The device requires a minimum differential voltage of 300 mV between the input and output pins when the load current is less than or equal to 3 mA.