ZRT025N8A1TA

Overview

The ZRT025N8A1TA is a monolithic integrated circuit providing a precise stable reference voltage of 2.5V at 500μA. It features a knee current of 150μA and operates over a wide range of temperatures and currents. The device offers trimmable output capability, excellent temperature stability, and low output noise figure. Initial voltage tolerance versions are available in 1% and 2%. No external stabilizing capacitor is required in most cases. The SO8 package suffix N8 indicates surface mount configuration.

Feature Summary

• Trimmable output voltage with a specified adjustment range of 65% using an optional 100kΩ resistor
• Excellent temperature stability with no derating required at low temperatures
• Low output noise figure of 50 μV peak-to-peak over the 0.1 to 10Hz range
• No external stabilizing capacitor required in most applications

Applications

• Precision analog circuits requiring stable voltage references
• System error compensation applications
• Setting reference outputs to specific values in measurement systems

Procurement Notes

Verify the exact ordering suffix against the manufacturer's official documentation to confirm package type, temperature grade, and initial voltage tolerance. The ZRT025N8A1TA designation specifically denotes the SO8 package, A grade (-55°C to 125°C), and 1% tolerance. Ensure compatibility with existing board layouts for the SO8 footprint and confirm that the trim pin handling matches the design requirements.

Selection Notes

Select this component when a precise 2.5V reference with high stability across wide temperature ranges is required. The A grade ensures operation from -55°C to 125°C, suitable for harsh environments. The 1% tolerance provides tighter accuracy than the 2% variant. Consider the trim facility if system-level calibration is needed to compensate for errors or set specific output values.

Part Context

The ZRT025 series includes various package options such as TO18, SOT223, and SO8. The N8 suffix specifically identifies the SO8 small outline package version. Other variants include ZRT025C1/C2 for commercial temperature ranges and different tolerance levels. The device is designed for both through-hole and surface mount applications, offering flexibility in PCB design.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.