CAT8900B102TBGT3

Overview

The CAT8900B102TBGT3 is a precision series voltage reference IC manufactured by onsemi, housed in an SOT-23-3 surface-mount package. It provides a fixed output voltage of 1.024 V with a tolerance of ±0.1%. The device operates within an input voltage range of 2.7 V to 5.5 V and draws a supply current of 800 nA. It features a temperature coefficient of 50 ppm/°C and low noise performance of 50 µVp-p from 0.1 Hz to 10 Hz. The component is rated for operation between -40°C and +85°C.

Feature Summary

• Provides a stable fixed output voltage of 1.024 V with high precision.
• Ultra-low power consumption suitable for battery-operated applications.
• Low noise characteristics ensure signal integrity in sensitive circuits.
• Compact SOT-23-3 packaging facilitates space-constrained designs.

Applications

• Portable instrumentation requiring precise analog references
• Battery-powered measurement devices
• Data acquisition systems
• Medical equipment

Procurement Notes

This part number is officially classified as obsolete and no longer manufactured by onsemi. Verification of availability should focus on identifying qualified replacement components or checking secondary market sources, as direct procurement from the manufacturer is not possible. Ensure any substitute maintains identical electrical specifications and pinout compatibility.

Selection Notes

Select this component when a highly accurate 1.024 V reference is required with minimal power draw. The low noise profile makes it suitable for high-resolution ADCs. Due to its obsolete status, engineers must evaluate alternative sources or transition to newer equivalents that offer similar precision and form factor without compromising system performance.

Part Context

The CAT8900B102TBGT3 belongs to the CAT8900 series of precision voltage references. This series is designed for applications demanding high accuracy and stability. The specific suffix indicates the 1.024 V output variant with tight tolerance. It is part of onsemi's portfolio of power management integrated circuits focused on efficiency and precision.

Replacement Considerations

Publicly confirmed substitutes include the ISL21010DFH310Z-TK from Renesas Electronics Corporation. Verify that the replacement matches the 1.024 V output, SOT-23-3 package, and electrical characteristics before integration.