CAT8900C102TBGT3

Overview

The CAT8900C102TBGT3 is a precision analog voltage reference integrated circuit manufactured by onsemi. It provides a fixed output voltage of 1.024V with a tolerance of ±0.06%. The device operates within an input voltage range of 2.7V to 5.5V and draws a supply current of 800nA. It features a low noise performance of 50µVp-p in the 0.1Hz to 10Hz frequency band and a temperature coefficient of 50ppm/°C. The component is housed in a compact SOT-23-3 surface-mount package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Delivers high-precision fixed voltage output with tight initial accuracy tolerance
• Operates with ultra-low quiescent current consumption for power efficiency
• Maintains stable performance across extended industrial temperature ranges

Applications

• Precision data acquisition systems requiring accurate reference voltages
• High-resolution analog-to-digital converter (ADC) front-end circuits
• Battery-powered instrumentation utilizing low-power design constraints

Procurement Notes

Verify the specific suffix 'C' against official datasheets to confirm the ±0.06% tolerance grade, as variations exist within the CAT8900 family. Ensure the SOT-23-3 package matches the target PCB footprint. Confirm RoHS compliance status for environmental regulations. Validate that the 1.024V output aligns with system requirements before procurement.

Selection Notes

Select this component when a sub-millivolt reference is required for low-voltage applications. The low noise specification makes it suitable for sensitive measurement circuits. Compare the 800nA supply current against battery life requirements. Ensure the input voltage remains above the minimum threshold during operation. Consider thermal management if operating near the upper temperature limit.

Part Context

This part belongs to the CAT8900 series of precision voltage references designed for space-constrained applications. The series offers various output voltages and tolerance grades to suit different precision needs. Manufactured by onsemi, these devices utilize advanced bandgap technology to ensure long-term stability and reliability in demanding electronic environments.

Replacement Considerations

Check for direct substitutes within the CAT8900 family offering identical 1.024V output and ±0.06% tolerance. Verify pinout compatibility with the SOT-23-3 package for drop-in replacement. Ensure equivalent noise and temperature coefficient specifications are met by alternative sources.