CAT8900C180TBGT3

Overview

The CAT8900C180TBGT3 is a precision analog voltage reference IC manufactured by onsemi, belonging to the CAT8900 series. 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 features a low supply current of 800nA. It exhibits a temperature coefficient of 50ppm/°C and delivers a maximum output current of 10mA. Noise performance is specified at 50µVp-p from 0.1Hz to 10Hz. The component is housed in a surface-mount SOT-23-3 package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Delivers a stable 1.8V fixed output voltage suitable for precision applications
• Features ultra-low power consumption with 800nA supply current
• Provides high accuracy with ±5% initial tolerance and 50ppm/°C temperature stability
• Offers robust noise performance of 50µVp-p in the 0.1Hz to 10Hz frequency band

Applications

• Portable battery-powered instrumentation systems
• Data acquisition and measurement circuits requiring precise voltage standards
• Analog-to-digital converter (ADC) reference inputs
• Digital-to-analog converter (DAC) reference sources

Procurement Notes

Verify component authenticity through authorized onsemi distributors or certified partners. Confirm RoHS compliance status via official documentation. Check for obsolescence notices or product change notifications prior to procurement. Ensure storage conditions adhere to manufacturer guidelines to maintain reliability. Validate package marking against datasheet specifications to prevent counterfeit substitution.

Selection Notes

Select this component when a fixed 1.8V reference is required with minimal quiescent current. Consider the ±5% tolerance and 50ppm/°C drift for circuit accuracy requirements. Evaluate the 10mA output drive capability against load demands. Compare noise specifications against ADC/DAC requirements. Ensure the SOT-23-3 footprint fits the 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 including 1.2V, 1.8V, 2.5V, and 3.0V options. All variants share similar low-power characteristics and SOT-23-3 packaging. The series is designed for applications demanding high stability and low noise in compact form factors.

Replacement Considerations

Consult onsemi official documentation for verified substitute part numbers. Cross-reference electrical parameters such as output voltage, tolerance, and temperature coefficient. Verify package compatibility and pinout alignment. Review thermal and noise specifications for functional equivalence.