ZR404005R25

Overview

The ZR404005R25 is a precision micropower voltage reference providing a fixed output of 2.5 volts, manufactured by Diodes Incorporated. It utilizes a bandgap circuit design and is housed in an E-Line (TO-92 style) package with the 'R' suffix indicating reversed pin configuration. The device operates within a recommended current range of 60 µA to 15 mA, ensuring stability without requiring an external stabilizing capacitor. It features a typical temperature coefficient of 30 ppm/°C and maintains excellent performance up to an absolute maximum reverse current of 25 mA.

Feature Summary

• Bandgap circuit design provides stable 2.5V output without external capacitors
• Capable of withstanding transient effects and currents up to 200mA due to rugged construction
• Fast transient response reaches stable operating conditions in less than 10 microseconds
• E-Line package offers a through-hole alternative for space-constrained applications

Applications

• Battery powered and portable equipment
• Metering and measurement systems
• Instrumentation and test equipment
• Data acquisition systems
• Precision power supplies

Procurement Notes

Verify the specific tolerance grade required, as the '05' suffix denotes 0.5% accuracy. Confirm that the E-Line package orientation matches the schematic requirements, noting the reversed pin configuration associated with the 'R' suffix. Ensure the application current remains within the 60 µA to 15 mA recommended range for optimal performance. Check datasheet limits regarding absolute maximum ratings before implementation.

Selection Notes

Select this component when a low-cost, high-precision 2.5V reference is needed for through-hole designs. The E-Line package suits environments where surface-mount technology is unsuitable. Consider the 0.5% initial accuracy and 30 ppm/°C temperature coefficient for applications demanding tight voltage regulation over varying temperatures. Evaluate the 60 µA minimum operating current against the system's quiescent power constraints.

Part Context

This part belongs to the ZR4040 series of micropower voltage references from Diodes Incorporated. The series includes variants with different output voltages and tolerances, available in both SOT23 and E-Line packages. The ZR4040-2.5 specifically targets the 2.5-volt requirement common in ADC/DAC reference circuits. The 'R' suffix distinguishes the physical pinout compared to standard TO-92 components.

Replacement Considerations

LM4040DIZ-5.0/NOPB

FAQ

Does the ZR404005R25 require an external capacitor for stability?

No, the device is designed to be stable without an external stabilizing capacitor and can handle capacitive loads.

What is the significance of the 'R' suffix in the part number?

The 'R' suffix indicates the E-Line package variant with a reversed pin configuration compared to standard TO-92 devices.