CAT8900D120TBGT3

Overview

The CAT8900D120TBGT3 is a precision analog voltage reference integrated circuit manufactured by onsemi. It provides a fixed output voltage of 1.2V with an initial accuracy 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 low noise performance of 50µVp-p in the 0.1Hz to 10Hz frequency band and a temperature coefficient of 50ppm/°C. The component supports a maximum output current of 10mA and functions reliably across an operating temperature range of -40°C to 85°C.

Feature Summary

• Provides a stable, fixed 1.2V reference output suitable for high-precision applications
• Delivers low noise performance of 50µVp-p in the 0.1Hz to 10Hz bandwidth
• Operates with ultra-low supply current consumption of 800nA
• Maintains accuracy over a wide industrial temperature range from -40°C to 85°C

Applications

• Precision data acquisition systems requiring stable reference voltages
• High-resolution analog-to-digital converter (ADC) biasing
• Portable instrumentation powered by battery sources
• Calibration equipment needing low-drift voltage standards

Procurement Notes

Verify part authenticity through authorized onsemi distributors or certified suppliers. Confirm the specific suffix TBGT3 matches the required SOT-23-3 package configuration. Check datasheet revisions for any updates regarding electrical characteristics or pinout definitions. Ensure compliance with RoHS and REACH regulations as specified in the official documentation. Validate that the supplier provides traceable manufacturing lot information.

Selection Notes

Select this component when a fixed 1.2V reference is required with moderate accuracy. Consider the 5% initial tolerance and 50ppm/°C temperature coefficient against application requirements. Evaluate the 800nA quiescent current for power-sensitive designs. Compare the 10mA output drive capability against load demands. Assess the SOT-23-3 footprint constraints against available PCB space.

Part Context

This device belongs to the CAT8900 series of precision voltage references from onsemi. The series offers various fixed output voltages and accuracy grades. The D120 variant specifically targets the 1.2V output requirement. The TBGT3 suffix indicates the tape and reel packaging format in the SOT-23-3 surface-mount package. This family is designed for compact, low-power electronic applications.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative voltage references based on matching output voltage, tolerance, package type, and electrical specifications before substitution.