CAT8900D180TBGT3

Overview

The CAT8900D180TBGT3 is a precision analog voltage reference integrated circuit manufactured by onsemi. It provides a fixed output voltage of 1.8V with a tolerance of ±5%. The device operates within an input voltage range of 2.7V to 5.5V and draws a supply current of 800nA. It features a temperature coefficient of 50ppm/°C and low noise performance of 50µVp-p from 0.1Hz to 10Hz. The component supports a maximum output current of 10mA and functions reliably across an ambient temperature range of -40°C to +85°C. It is housed in a compact SOT-23-3 surface-mount package.

Feature Summary

• Provides stable, fixed precision voltage reference for sensitive analog circuits
• Ultra-low power consumption suitable for battery-operated applications
• Low noise characteristics ensure signal integrity in measurement systems
• Compact three-terminal surface-mount packaging for space-constrained designs

Applications

• Analog-to-digital converter (ADC) reference sources
• Digital-to-analog converter (DAC) voltage references
• Precision sensor signal conditioning circuits
• Portable instrumentation requiring low power operation

Procurement Notes

Verify the specific suffix TBGT3 against the manufacturer's official datasheet to confirm pinout compatibility and tape-and-reel specifications. Ensure the procurement channel sources genuine onsemi components to guarantee the specified electrical tolerances and temperature coefficients are met. Cross-reference the part number with the latest product change notices to avoid obsolete or discontinued variants.

Selection Notes

Select this component when a fixed 1.8V reference is required with moderate accuracy and ultra-low quiescent current. It is appropriate for designs where power efficiency is critical and the ±5% initial accuracy meets system requirements. Consider alternative packages if higher thermal dissipation or different pin configurations are needed for the specific PCB layout constraints.

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 to support diverse power management needs. The D180 designation indicates the specific 1.8V output variant within this family, designed for general-purpose precision applications requiring stability over temperature and time.

Replacement Considerations

Compatible substitutes include other CAT8900 series variants with similar voltage outputs and package types. Verify that any replacement maintains the same SOT-23-3 footprint and electrical characteristics such as supply current and noise levels to ensure direct interchangeability without circuit redesign.