ADR03BKS-R2

Overview

The ADR03BKS-R2 is a precision bandgap voltage reference from Analog Devices, providing a fixed 2.5 V output. It features an initial accuracy of ±0.1% and a low temperature coefficient of 3 ppm/°C in the SOIC package variant. The device operates within a wide supply voltage range of 4.5 V to 36 V and draws a typical supply current of 1 mA. It supports a maximum output current of 10 mA and functions reliably across an extended temperature range from -40°C to +125°C.

Feature Summary

• Ultracompact surface-mount packaging suitable for space-constrained designs
• High stability with low temperature coefficient for precision applications
• Drop-in replacement capability for industry standard REF03 devices
• No external capacitor required for stable operation

Applications

• Precision data acquisition systems
• High resolution analog-to-digital converters
• Industrial process control instrumentation
• Auto battery monitoring circuits

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and reel specifications. Confirm automotive qualification status if required for your application. Check current availability as distribution may be limited. Ensure the ordering part number matches the exact electrical and mechanical requirements of your design before procurement.

Selection Notes

Select this component when a compact, high-accuracy 2.5 V reference is needed. It serves as a direct pin-compatible alternative to legacy REF03 parts. Consider the 3 ppm/°C drift for thermal stability requirements. Evaluate the 10 mA output drive capability against load demands. Verify compatibility with your system's input voltage range.

Part Context

This part belongs to the ADR0x family of ultralow noise, high accuracy voltage references. The series includes 10 V, 5 V, 2.5 V, and 3.0 V variants. These components are designed for general-purpose use where small footprint and wide operating range are critical. The ADR03 specifically targets applications requiring precise 2.5 V regulation.

Replacement Considerations

The ADR03BRZ is a verified equivalent offering identical electrical performance in an 8-SOIC package. Other ADR0x family members provide different reference voltages but share similar architectural characteristics. Verify pinout compatibility when substituting with legacy REF03 equivalents.