ADR3440ARJZ-R7

Overview

The ADR3440ARJZ-R7 is a micropower, high-accuracy CMOS voltage reference with a fixed output of 4.096 V. It features ±0.1% initial accuracy and a maximum temperature coefficient of 8 ppm/°C over the −40°C to +125°C range. The device operates from an input voltage of 4.3 V to 5.5 V, drawing a maximum quiescent current of 100 μA. It provides +10 mA sourcing and −3 mA sinking output current capability with a low dropout voltage of 250 mV at 2 mA.

Feature Summary

• Digital trimming via proprietary DigiTrim technology ensures high precision and stability.
• Low output noise helps maintain signal integrity in critical signal processing systems.
• Integrated enable pin allows for effective shutdown and power management.

Applications

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

Procurement Notes

Verify the specific ordering suffix (R7) corresponds to the tape and reel packaging configuration required for your assembly process. Confirm that the input voltage supply meets the minimum operating requirement of 4.3 V to ensure proper regulation. Ensure the design accommodates the thermal characteristics of the 6-lead SOT-23 package under expected load conditions.

Selection Notes

Select this component when a stable 4.096 V reference is needed in space-constrained designs requiring low power consumption. It is suitable for applications demanding high initial accuracy without the complexity of adjustable references. Consider the specific input voltage range requirements, as this model requires a minimum of 4.3 V compared to lower voltage variants in the series.

Part Context

This part belongs to the ADR34xx family of micropower voltage references manufactured by Analog Devices. The family utilizes CMOS technology and digital trimming to achieve high performance in a small footprint. Other models in the series offer different fixed output voltages ranging from 1.2 V to 5.0 V, sharing similar electrical characteristics and package options.

Replacement Considerations

Direct substitutes within the same family include ADR3440ARJZ-R2. For different output voltages, consider ADR3412, ADR3420, ADR3425, ADR3430, ADR3433, or ADR3450. Verify pin compatibility and electrical specifications before substituting.