ZR285F02TA

Overview

The ZR285F02TA is a precision micropower voltage reference from Diodes Incorporated, delivering a nominal output of 2.5V with a tolerance of ±2%. It utilizes a bandgap circuit design to provide stable performance without requiring an external stabilizing capacitor. The device operates within a current range of 20 μA to 20 mA and withstands transient currents up to 200 mA. It features a typical temperature coefficient of 30 ppm/°C and slope resistance of 0.4 Ω. Packaged in a surface-mount SOT-23 format, it supports an operating temperature range of -40°C to +85°C.

Feature Summary

• Bandgap circuit design ensures precision voltage regulation
• Capacitor-free operation maintains stability with capacitive loads
• High surge capability withstands transient effects up to 200mA
• Compact SOT-23 package optimizes space efficiency

Applications

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

Procurement Notes

Verify the specific ordering suffix F02TA to confirm the ±2% tolerance level required for the application. Confirm that the SOT-23 package dimensions align with the PCB footprint constraints. Ensure the operating environment remains within the specified industrial temperature range of -40°C to +85°C. Check if the recommended operating current range of 20 μA to 20 mA fits the system power budget. Review the datasheet for any updates regarding component availability or lifecycle status.

Selection Notes

Select this component when a precise 2.5V reference is needed in space-constrained designs. It is suitable for low-power applications due to its micropower characteristics and low knee current. Consider the ±2% initial accuracy and 30 ppm/°C temperature coefficient for calibration requirements. Evaluate the rugged design benefits for environments prone to electrical transients. Compare against other references if lower noise or tighter tolerance is strictly necessary.

Part Context

The ZR285 series consists of precision 2.5V micro-power voltage references designed by Diodes Incorporated. These devices are part of a broader portfolio of analog and power management solutions. The ZR285F02TA specifically denotes the version with a 2% tolerance rating. This series targets applications where size, power consumption, and stability are critical factors in electronic system design.

Replacement Considerations

ZR285F01TA (1% tolerance)

FAQ

Does the ZR285F02TA require an external capacitor for stability?

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

What is the maximum transient current the ZR285F02TA can withstand?

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

What is the typical temperature coefficient of the ZR285F02TA?

The typical temperature coefficient is 30 ppm/°C.