ZRC400A03

Overview

The ZRC400A03 is a precision micropower voltage reference providing a nominal output of 4.096 volts, manufactured by Diodes Incorporated. It utilizes a bandgap circuit design to achieve high stability without requiring an external stabilizing capacitor. The device operates within a recommended current range of 23μA to 5mA and maintains excellent performance up to 25mA. It features a typical temperature coefficient of 30ppm/°C and a slope resistance of 0.4Ω. The component is housed in an E-Line package with a tolerance of ±3%.

Feature Summary

• Bandgap circuit design ensures stable voltage output without the need for external capacitors.
• Capable of withstanding transient effects and currents up to 200mA due to rugged 20-volt processing.
• Fast switching capability allows the device to reach stable operating conditions in less than 10 microseconds.
• Low knee current of 18μA makes it suitable for low power and battery-powered applications.

Applications

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

Procurement Notes

Verify that the specific part number ZRC400A03 corresponds to the E-Line package variant with ±3% tolerance as documented in the manufacturer's ordering information. Confirm package suffix alignment with PCB footprint requirements. Ensure sourcing channels provide valid datasheets matching Issue 3 specifications. Check for any RoHS compliance updates or environmental declarations relevant to the manufacturing batch.

Selection Notes

Select this component when a precise 4.096V reference is required in space-constrained designs using through-hole E-Line packages. Consider its low knee current for battery-operated systems where minimizing quiescent draw is critical. Evaluate the ±3% tolerance against system accuracy requirements. The device's ability to drive capacitive loads without stabilization simplifies circuit design compared to references requiring external components.

Part Context

The ZRC400 series includes variants in SOT23, SO8, and E-Line packages with tolerances of 1%, 2%, and 3%. The ZRC400A03 specifically denotes the E-Line package configuration with 3% tolerance. Other suffixes indicate different pin configurations or package styles within the same functional family, such as reversed E-Line pins or surface mount options.

Replacement Considerations

LM4040AIZ-5.0/NOPB (Texas Instruments)

FAQ

Does the ZRC400A03 require an external capacitor for stability?

No, the ZRC400 design provides a stable voltage without an external capacitor and is stable with capacitive loads.

What is the minimum operating current for the ZRC400A03?

The minimum operating current is 18μA typical, with a recommended operating range starting from 23μA.

How does the ZRC400A03 handle transient effects?

The rugged design and 20-volt processing allow the reference to withstand transient effects and currents up to 200mA.