CAT8900A204TBGT3

Overview

The CAT8900A204TBGT3 is a precision analog voltage reference integrated circuit manufactured by onsemi. It provides a fixed output voltage of 2.048 V with high accuracy, typically within ±0.06% tolerance for the 'A' grade variant. The device operates from a supply voltage range of 2.7 V to 5.5 V and draws a low supply current of approximately 800 nA. It features a low noise performance of 50 µVp-p in the 0.1 Hz to 10 Hz frequency band and a temperature coefficient of 50 ppm/°C. The component is housed in a compact SOT-23-3 surface-mount package and is rated for an operating temperature range of -40°C to +85°C.

Feature Summary

• Delivers a stable, fixed precision voltage output suitable for high-resolution data acquisition systems.
• Operates with ultra-low quiescent current consumption to extend battery life in portable applications.
• Provides low-noise performance to maintain signal integrity in sensitive analog circuits.
• Utilizes a compact three-pin surface-mount package for efficient board space utilization.

Applications

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

Procurement Notes

Verify the specific suffix codes against official datasheets to confirm tolerance grades and packaging options. Ensure compatibility with existing thermal management designs due to the small SOT-23-3 footprint. Confirm that the input voltage remains within the specified 2.7 V to 5.5 V range during all operational states to guarantee regulation accuracy.

Selection Notes

Select this component when a fixed 2.048 V reference with tight initial accuracy is required. Consider the low noise specification for applications sensitive to low-frequency fluctuations. Evaluate the SOT-23-3 package constraints against available PCB real estate. Compare supply current requirements against other family members if power efficiency is critical.

Part Context

This part belongs to the CAT8900 series of precision analog voltage references from onsemi. The series offers various fixed output voltages and tolerance grades to suit different application needs. The CAT8900A204TBGT3 specifically targets applications demanding high accuracy and low power consumption in a minimal footprint.

Replacement Considerations

Check for direct substitutes within the CAT8900 family offering similar voltage and tolerance. Verify pinout compatibility with the SOT-23-3 package before substitution. Ensure thermal and electrical specifications match the original design requirements.