ZR285F03TA

Overview

The ZR285F03TA is a precision micropower voltage reference providing a nominal reverse breakdown voltage of 2.5V with ±2% tolerance. It utilizes a bandgap circuit design and operates within an industrial temperature range of -40°C to +85°C. The device requires no external stabilizing capacitor and maintains stability with capacitive loads. Recommended operating current ranges from 20μA to 20mA, while absolute maximum ratings allow for transient currents up to 200mA. It features a typical temperature coefficient of 30ppm/°C and slope resistance of 0.4Ω.

Feature Summary

• Bandgap circuit design ensures stable voltage output without requiring external stabilizing capacitors.
• Capacitive load stability allows direct connection to downstream filtering components.
• Low knee current operation supports efficient performance in battery-powered applications.
• Robust design withstands transient effects and high surge currents up to 200mA.

Applications

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

Procurement Notes

Verify component authenticity through authorized Diodes Incorporated distribution channels. Confirm that the specific ordering suffix matches the required tolerance grade. Ensure compliance with RoHS directives if applicable to the target assembly. Review the datasheet for absolute maximum ratings to prevent damage during installation. Validate package dimensions against PCB footprint requirements prior to procurement.

Selection Notes

Select this component when a fixed 2.5V reference is required in space-constrained designs. The SOT23-3 package offers a compact surface-mount solution suitable for portable electronics. Consider the low operating current range for applications prioritizing energy efficiency. Evaluate the ±2% initial accuracy against system calibration requirements. Assess thermal management needs based on the specified power dissipation limits.

Part Context

The ZR285 series belongs to Diodes Incorporated's portfolio of precision voltage references. This specific model represents a micro-power variant designed for low-energy consumption scenarios. The family includes various tolerance grades and packaging options to support diverse industrial and consumer electronic applications. It serves as a foundational component for establishing accurate voltage levels in analog signal chains.

Replacement Considerations

ZR285F01TA (1% tolerance)

FAQ

Is an external capacitor required for stability?

No, the ZR285 design provides stable voltage without an external stabilizing capacitor and remains stable with capacitive loads.

What is the recommended operating current range?

The device is recommended for operation between 20 μA and 20 mA.