CAT8900D102TBGT3

Overview

The CAT8900D102TBGT3 is a precision analog voltage reference IC manufactured by onsemi. It provides a fixed output voltage of 1.024V 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 exhibits low noise of 50µVp-p from 0.1Hz to 10Hz. The component is housed in a SOT-23-3 surface-mount package and supports an operating temperature range of -40°C to +85°C.

Feature Summary

• Provides a stable, fixed 1.024V reference output for precision applications
• Ultra-low power consumption with 800nA supply current
• Low noise performance suitable for sensitive analog circuits
• Compact SOT-23-3 surface-mount packaging

Applications

• Precision analog-to-digital converter (ADC) references
• Data acquisition systems requiring stable voltage sources
• Battery-powered instrumentation due to low current draw
• Calibration equipment needing accurate voltage baselines

Procurement Notes

Verify the specific suffix TBGT3 against official onsemi documentation to confirm package type and tape-and-reel specifications. Confirm that the D102 designation corresponds to the 1.024V output variant. Check current availability status as some distributors list this part as discontinued or subject to supply limitations. Ensure compatibility with RoHS and lead-free requirements if mandated by your assembly process.

Selection Notes

Select this component when a low-cost, fixed 1.024V reference is required with moderate accuracy. The ±5% tolerance may be insufficient for high-precision metrology; consider tighter tolerance variants if stricter error budgets apply. The low quiescent current makes it ideal for battery-operated devices where power efficiency is critical. Verify that the SOT-23-3 footprint fits your 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 tolerance grades. The CAT8900D102TBGT3 specifically targets applications needing a sub-1.1V reference point. It complements other onsemi PMIC components by providing a stable baseline for regulation and conversion circuits.

Replacement Considerations

Check for direct cross-reference part numbers from onsemi or other manufacturers offering identical 1.024V output in SOT-23-3 packages. Verify pinout compatibility before substitution. Consider alternatives with lower temperature coefficients if thermal stability is a primary concern.