ADR370ARTZ-REEL7

Overview

The ADR370ARTZ-REEL7 is a precision, low-power, 2.048 V series band gap voltage reference manufactured by Analog Devices Inc. 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 from 2.3 V to 15 V, drawing a maximum quiescent current of 72 μA. It provides high output sink/source current capability of at least ±5 mA and is housed in a compact 3-lead SOT-23 package.

Feature Summary

• Patented temperature drift curvature correction design techniques ensure high stability and precise matching of on-chip components.
• Micropowered operation with low dropout characteristics allows for stable performance while sourcing or sinking up to 5 mA of load current.
• Wide operating input voltage range accommodates significant variations in supply voltage within 3 V and 5 V systems.

Applications

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

Procurement Notes

Verify that the specific ordering suffix matches the required RoHS compliance status and reel packaging quantity. Confirm the grade selection aligns with the necessary initial accuracy and temperature coefficient specifications for the target application environment. Ensure the component is sourced from authorized distributors to guarantee authenticity and traceability.

Selection Notes

Select this component when a fixed 2.048 V reference is required in space-constrained designs utilizing the 3-lead SOT-23 package. It is suitable for applications demanding low power consumption alongside moderate precision requirements over wide temperature ranges. Consider the line and load regulation specifications relative to the expected supply and load variations in the circuit design.

Part Context

This part belongs to the ADR370 family of micropowered voltage references. The ARTZ variant specifically denotes the A-grade accuracy level packaged in a tape-and-reel format compliant with RoHS standards. It serves as a cost-effective solution for general-purpose precision referencing tasks where board space is limited.

Replacement Considerations

Direct replacements include other ADR370 variants such as the ADR370BRTZ-REEL7 for tighter accuracy specifications or the ADR370ART-R2 for different packaging quantities. Verify pin compatibility and thermal characteristics when substituting with generic band gap references.

FAQ

What is the minimum supply voltage required for the ADR370ARTZ-REEL7?

The device requires a minimum supply voltage of 2.3 V to operate correctly.

Does the ADR370 support negative voltage generation?

Yes, by tying the VOUT terminal to ground and adding a bias resistor to the GND pin, the device can generate a negative voltage reference.

What external components are recommended for optimal performance?

A 4.7 μF capacitor on the input and a 1 μF capacitor on the output are recommended to achieve specified performance and stability.