ADR3412ARJZ-R2

Overview

The ADR3412ARJZ-R2 is a micropower, high-accuracy CMOS voltage reference with a fixed 1.2 V output. It features ±0.1% initial accuracy and an 8 ppm/°C temperature coefficient over the −40°C to +125°C range. The device operates on a single supply from 2.3 V to 5.5 V, drawing a maximum quiescent current of 100 μA. It provides +10 mA sourcing and −3 mA sinking output current capacity. Key electrical characteristics include low dropout voltage (250 mV at 2 mA), low output noise (<10 μV p-p from 0.1 Hz to 10 Hz), and long-term stability of 30 ppm per 1000 hours.

Feature Summary

• Digital trimming via proprietary DigiTrim technology ensures high precision and low drift.
• Integrated enable pin allows for effective power management in battery-operated systems.
• Kelvin force/sense connections minimize errors caused by trace resistance.

Applications

• Precision data acquisition systems
• Industrial instrumentation
• Medical devices
• Battery-powered devices

Procurement Notes

Verify the specific suffix 'R2' against official documentation to confirm reel packaging specifications. Ensure the input voltage range meets the minimum requirement of 2.3 V for proper regulation. Confirm that the thermal environment remains within the specified operating limits to maintain accuracy.

Selection Notes

Select this component when a stable 1.2 V reference is required in space-constrained designs. The SOT-23-6 package offers a compact footprint suitable for portable electronics. Consider the low quiescent current for applications where power efficiency is critical.

Part Context

This part belongs to the ADR34xx series of micropower voltage references from Analog Devices. The series includes various fixed output voltages optimized for different system requirements while maintaining consistent performance metrics across the family.

Replacement Considerations

ADR3412ARJZ-R7