ZXRE125ERSTOB

Overview

The ZXRE125ERSTOB is a bandgap voltage reference IC providing a fixed 1.22V output with ±2% initial accuracy. It operates within an input current range of 4µA to 20mA and features a typical temperature coefficient of 20ppm/°C. The device is housed in a surface-mount SOT-23 package, supports an operating temperature from -40°C to +85°C, and maintains unconditional stability under capacitive loads.

Feature Summary

• Provides a precision 1.22V micropower reference
• Maintains stability across wide capacitive loads
• Features low power consumption with 4µA knee current

Applications

• Battery powered equipment
• Precision power supplies
• Portable instrumentation
• Data acquisition systems

Procurement Notes

Verify the specific suffix 'ERSTOB' against the manufacturer's official ordering information table. The datasheet lists standard tape-and-reel variants such as ZXRE125EFTA for 2% tolerance. Confirm if the 'RS' suffix indicates a specific reel size or packaging variation not explicitly detailed in the primary document.

Selection Notes

Select this component when space-constrained designs require a stable 1.22V reference. The SOT-23 package offers a compact footprint suitable for portable devices. Ensure the circuit design accommodates the recommended operating current range between 8µA and 20mA for optimal performance.

Part Context

This part belongs to the ZXRE125 series of shunt voltage references manufactured by Diodes Incorporated. It serves as a pin-for-pin compatible replacement for legacy ZRA124 and ZRA125 series components. The series utilizes a bandgap circuit topology to achieve high precision in a small outline package.

Replacement Considerations

The ZXRE125 series is documented as obsolete in the provided datasheet. Verify availability status before procurement. Consider alternative modern voltage reference ICs from the manufacturer that offer updated manufacturing support.