CAT8900A125TBGT3

Overview

The CAT8900A125TBGT3 is a series precision voltage reference IC manufactured by onsemi. It provides a fixed output voltage of 1.25V with an initial tolerance of ±0.04%. The device operates within an input voltage range of 2.7V to 5.5V and draws a supply current of 800nA. It features a low noise characteristic of 50µVp-p from 0.1Hz to 10Hz and a temperature coefficient of 50ppm/°C. The component supports a maximum output current of 10mA and functions reliably across a temperature range of -40°C to +85°C. It is housed in a compact SOT-23-3 surface-mount package.

Feature Summary

• Delivers high-precision fixed voltage output with ultra-low initial tolerance for accurate signal conditioning.
• Features extremely low quiescent current consumption suitable for battery-powered applications.
• Provides low-noise performance to maintain signal integrity in sensitive analog circuits.

Applications

• Precision data acquisition systems
• Portable instrumentation
• Battery-operated measurement devices

Procurement Notes

Verify component authenticity through authorized channels as the part status may be obsolete. Confirm package type and marking codes against official datasheets. Check for RoHS compliance documentation. Ensure storage conditions meet manufacturer specifications to prevent degradation. Validate supplier credentials before transaction.

Selection Notes

Select this component when high accuracy and low power are critical. Compare initial tolerance and temperature drift against application requirements. Consider the SOT-23-3 footprint constraints. Evaluate noise performance relative to ADC resolution needs. Verify input voltage compatibility with system rails.

Part Context

This part belongs to the CAT8900 series of precision voltage references. It shares the SOT-23-3 package form factor with other variants in the family but differs in output voltage and tolerance specifications. The series is designed for general-purpose precision applications requiring stable reference voltages.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult manufacturer cross-reference guides for potential alternatives if direct replacement is required.