ADR370ART-R2

Overview

The ADR370ART-R2 is a precision, low-power series voltage reference producing a nominal 2.048 V output. It features an initial accuracy of ±10 mV (±0.5%) and a maximum temperature coefficient of 100 ppm/°C across the extended industrial range of −40°C to +125°C. The device operates with a supply voltage between 2.3 V and 15 V, drawing a maximum quiescent current of 72 μA. It provides high output sink/source current capability of at least ±5 mA and includes patented temperature drift curvature correction for enhanced stability.

Feature Summary

• Patented temperature drift curvature correction design techniques ensure high accuracy and stability.
• Capable of sourcing or sinking up to 5 mA of load current while maintaining stable output.
• Operates within a wide input voltage range from 2.3 V to 15 V.

Applications

• Battery-powered instrumentation
• Portable medical instruments
• Data acquisition systems
• Industrial process control systems
• Automotive applications

Procurement Notes

Verify the specific ordering suffix R2 against the manufacturer's official documentation to confirm the package option and reel quantity. Ensure compatibility with RoHS compliance requirements if applicable to the project specifications. Cross-reference the part number with the latest datasheet revision to validate all electrical characteristics and thermal resistance parameters before finalizing procurement.

Selection Notes

Select this component when a compact 3-lead SOT-23 package is required alongside precise voltage referencing in space-constrained designs. The A Grade offers a balance of low power consumption and moderate accuracy suitable for general-purpose data acquisition. Consider the wide operating temperature range and line regulation performance when designing for environments with significant supply voltage fluctuations.

Part Context

This component belongs to the ADR370 family of micropowered, low dropout voltage references manufactured by Analog Devices. The family utilizes band gap concepts to produce stable outputs, featuring precise matching and thermal tracking of on-chip components. Other variants in the series include B grade options with tighter accuracy specifications and different packaging configurations such as REEL7.

Replacement Considerations

ADR370BRT-R2

FAQ

What is the minimum supply headroom required for the ADR370?

The device requires a minimum supply headroom of 200 mV above the output voltage.

How does the ADR370 achieve negative voltage referencing?

A negative reference can be obtained by tying the VOUT terminal to ground and adding a bias resistor to the GND pin, leveraging the device's current sinking capability.