ADR225HRZN

Description：IC VREF SERIES 0.4% 8SOIC
Series：-
Mfr：Analog Devices Inc.
Package：Tube

SKU:de750a45a61c Category: Voltage Reference Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC VREF SERIES 0.4% 8SOIC
Series：-
Mfr：Analog Devices Inc.
Package：Tube
Output Type：Fixed
Voltage - Output (Min/Fixed)：2.5V
Voltage - Output (Max)：-
Current - Output：10 mA
Operating Temperature：-40°C ~ 175°C (TA)
Mounting Type：Surface Mount
Package / Case：8-SOIC (0.154", 3.90mm Width)
Supplier Device Package：8-SOIC
Grade：-
Qualification：-

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ADR225HRZN

Overview

The ADR225HRZN is a precision 2.5 V band gap voltage reference designed for extreme high-temperature environments, operating from −40°C to +175°C in an 8-lead SOIC package. It utilizes a micropower core topology and laser-trimmed thin film resistors to achieve a maximum temperature coefficient of 30 ppm/°C up to 175°C and an initial accuracy of ±0.4%. The device supports a wide supply range of 3.3 V to 16 V with a maximum operating current of 50 µA and delivers a high output current of 10 mA.

Feature Summary

Extreme high-temperature operation qualified for 1000 hours at the maximum rating
Micropower core topology enabling low supply current consumption
Laser trimming of highly stable thin film resistors for precision
Low dropout voltage suitable for battery-powered equipment

Applications

Down-hole drilling and instrumentation
Avionics systems
Heavy industrial applications
High temperature environments

Procurement Notes

Verify that the ordering suffix HRZN corresponds to the 8-Lead Standard Small Outline Package (R-8) variant. Confirm the RoHS compliant status indicated by the Z suffix. Ensure the application requires the specific −40°C to +175°C operating range rather than the FLATPACK version for higher temperatures. Cross-reference the datasheet revision B specifications against the component marking.

Selection Notes

Select this part when a fixed 2.5 V reference is required in harsh thermal conditions. Compare the 30 ppm/°C temperature coefficient against the 40 ppm/°C specification of the FLATPACK variant if lower drift is critical. Evaluate the 50 µA supply current against system power budgets. Verify that the 10 mA output current meets load requirements without exceeding thermal limits.

Part Context

The ADR225HRZN belongs to the ADR225 series of high-temperature voltage references manufactured by Analog Devices. It shares the same electrical core as the ADR225HFZ but differs in packaging and temperature rating. The series is designed for robustness in demanding sectors such as aerospace and industrial sensing where standard commercial components fail.