ZRC250A03STOB

Overview

The ZRC250A03STOB is a precision micropower voltage reference utilizing bandgap circuit design to deliver a nominal output of 2.5 volts. It operates within a current range of 20µA to 5mA, with an absolute maximum rating of 25mA reverse or forward current. The device maintains stability without external capacitors and withstands transient currents up to 200mA. Key electrical parameters include a typical temperature coefficient of 30ppm/°C, slope resistance of 0.4Ω, and wideband noise voltage of 60µV(rms). It features ±3% initial tolerance and functions across an industrial temperature range of -40°C to 85°C.

Feature Summary

• Bandgap circuit design provides stable 2.5-volt reference without requiring external stabilizing capacitors.
• Low knee current allows operation down to 15µA, making it suitable for low power applications.
• Rugged design withstands transient effects and currents up to 200mA while maintaining superior switching capability.
• Stable with capacitive loads and reaches steady-state operating conditions in less than 10 microseconds.

Applications

• Battery powered and portable equipment
• Instrumentation systems
• Test equipment

Procurement Notes

Verify the specific package suffix against official documentation to confirm pin configuration and physical dimensions. Ensure the selected variant matches the required tolerance level and operating temperature range for the intended application environment. Cross-reference manufacturer part numbers to avoid confusion between similar series components.

Selection Notes

Select this component when space-saving surface mount or through-hole packages are required alongside high precision. Consider the low knee current for battery-operated designs where minimizing quiescent consumption is critical. Evaluate the transient response speed and capacitive load stability requirements before finalizing the design integration.

Part Context

This component belongs to the ZRC250 series of precision voltage references manufactured by Diodes Incorporated. The series utilizes bandgap technology to provide accurate voltage regulation in compact packages. It serves as a fundamental reference element in analog circuits requiring stable voltage sources under varying load and temperature conditions.

Replacement Considerations

LM4040C50ILPR

FAQ

Does the ZRC250A03STOB require an external capacitor for stability?

No, the device design provides a stable voltage without the need for an external stabilizing capacitor.

What is the typical knee current for this voltage reference?

The typical knee current is 15µA, allowing for efficient operation in low-power scenarios.

How does the device handle transient current spikes?

The rugged design allows the reference to withstand transient currents up to 200mA.