ADR395BUJZ-R2

Overview

The ADR395BUJZ-R2 is a precision band gap voltage reference providing a fixed 5.0 V output. It features a B-grade temperature coefficient of 9 ppm/°C and an initial accuracy of ±5 mV maximum. The device operates with a supply current of 140 μA maximum in active mode, reducing to 3 μA in shutdown. It supports up to 5 mA output current with a low dropout voltage of 300 mV. The component utilizes a compact 5-lead TSOT package and functions within a temperature range of −40°C to +125°C.

Feature Summary

• Integrated shutdown pin for power management
• Patented curvature correction for low drift
• Stable operation without external capacitors
• Low noise performance suitable for sensitive circuits

Applications

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

Procurement Notes

Verify the specific suffix R2 against the manufacturer's ordering guide to confirm reel packaging specifications. Ensure the B-grade designation matches the required accuracy and temperature coefficient parameters for your design. Confirm that the TSOT-23-5 footprint aligns with your PCB layout constraints before finalizing procurement.

Selection Notes

Select this component when a stable 5.0 V reference is needed in space-constrained designs. The low quiescent current makes it ideal for battery-operated devices. Consider the B-grade specification if tighter tolerance than the standard A-grade is required. Verify input voltage headroom requirements against the 300 mV dropout characteristic.

Part Context

This part belongs to the ADR39x family of micropower voltage references, which includes the ADR391 (2.5 V) and ADR392 (4.096 V). All members share similar architectural features, including the 5-lead TSOT package and shutdown functionality. The ADR395 specifically targets applications requiring a 5.0 V rail from a low-voltage source.

Replacement Considerations

Direct substitutes include other parts from the ADR39x series such as the ADR391 or ADR392 if different voltage levels are acceptable. Cross-referencing with Analog Devices' official replacement matrix is recommended to ensure pinout and electrical compatibility.

FAQ

Does the ADR395BUJZ-R2 require external capacitors for stability?

No, the device is designed to be stable without external capacitors, though a 0.1 μF capacitor is recommended for noise filtering.

How does the shutdown feature function?

Applying a logic low (0 V) to the SHDN pin turns off the reference, reducing supply current to 3 μA and placing the output in a high-impedance state.