CAT8900B330TBGT3

Overview

The CAT8900B330TBGT3 is a precision series voltage reference manufactured by onsemi, designed for low-voltage applications. It provides a fixed output of 3.3 V with a tolerance of ±0.04%. 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 of 50 µVp-p from 0.1 Hz to 10 Hz. The component supports a load current of 10 mA and functions reliably across a temperature range of -40°C to +85°C in a compact SOT-23-3 package.

Feature Summary

• Provides high-precision fixed voltage output with tight initial tolerance
• Ultra-low quiescent current consumption suitable for battery-powered systems
• Low noise performance ensures signal integrity in sensitive analog circuits
• Compact surface-mount packaging facilitates space-constrained designs

Applications

• Portable instrumentation requiring stable low-power references
• Battery-operated data acquisition systems
• Precision analog-to-digital converter (ADC) reference inputs
• Medical equipment requiring accurate voltage standards

Procurement Notes

Verify the specific suffix TBGT3 against official onsemi documentation to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status through the manufacturer's latest datasheet or certification documents. Ensure the sourcing channel provides valid traceability for this obsolete or limited-stock component family.

Selection Notes

Select this component when a 3.3 V reference with ±0.04% accuracy is required. Compare the 800 nA supply current against system power budgets. Verify that the 10 mA output drive capability meets the load requirements. Ensure the operating temperature range aligns with the environmental conditions of the target application.

Part Context

This part belongs to the CAT8900 series of precision voltage references from onsemi. The series offers various fixed output voltages and tolerance grades. The B suffix typically denotes tighter tolerance compared to other variants. The device integrates a bandgap reference core optimized for low noise and long-term stability in small packages.

Replacement Considerations

Check for direct pin-compatible substitutes within the CAT8900 family with different voltage outputs if system design changes. Verify electrical parameter equivalence for any cross-brand replacements, specifically focusing on temperature coefficient and noise specs.