CAT8900C125TBGT3

Overview

The CAT8900C125TBGT3 is a precision series voltage reference IC manufactured by onsemi, housed in an SOT-23-3 package. It provides a fixed output voltage of 1.25V with a tight tolerance of ±0.2%. The device operates within an input voltage range of 2.7V to 5.5V and delivers up to 10mA of output current. Key electrical characteristics include a temperature coefficient of 50ppm/°C and low noise performance of 50µVp-p from 0.1Hz to 10Hz. It functions reliably across a junction temperature range of -40°C to +125°C.

Feature Summary

• Provides high-precision fixed voltage output with ±0.2% initial accuracy
• Features low noise performance suitable for sensitive analog circuits
• Operates over an extended industrial temperature range

Applications

• Precision data acquisition systems
• Portable instrumentation requiring stable references
• Battery-powered measurement devices

Procurement Notes

Verify component authenticity through authorized channels as this part may be obsolete or subject to supply restrictions. Confirm that the SOT-23-3 package and 1.25V output specification match your design requirements. Check for RoHS compliance status and ensure compatibility with your manufacturing processes before finalizing procurement plans.

Selection Notes

Select this component when a highly accurate 1.25V reference is required in a compact surface-mount package. Consider the ±0.2% tolerance and 50ppm/°C drift for applications demanding strict voltage stability. Ensure the 10mA drive capability meets load requirements and that the 2.7V minimum input voltage aligns with the system power rail.

Part Context

This part belongs to the CAT8900 series of precision voltage references from onsemi. The series offers various fixed output voltages and accuracy grades, including the C-grade variant which specifies ±0.2% tolerance. These devices are designed for applications requiring small form factors and high reliability in power management and signal conditioning roles.

Replacement Considerations

Direct substitutes include other CAT8900 variants with different output voltages or tolerances, such as CAT8900D300TBGT3 (3.0V) or CAT8900C125TBGT3 equivalents from other manufacturers offering similar SOT-23-3 packages and precision specifications.