ADR421BR-REEL7

Description：IC VREF SERIES 0.04% 8SOIC
Series：XFET®
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)

SKU:e98b0ce1565a Category: Voltage Reference Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC VREF SERIES 0.04% 8SOIC
Series：XFET®
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)
Output Type：Fixed
Voltage - Output (Min/Fixed)：2.5V
Voltage - Output (Max)：-
Current - Output：10 mA
Operating Temperature：-40°C ~ 125°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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ADR421BR-REEL7

Overview

The ADR421BR-REEL7 is a series voltage reference from Analog Devices, utilizing XFET technology for ultraprecision performance. It provides a fixed output of 2.500 V with an initial accuracy of ±0.04% and a temperature coefficient of 3 ppm/°C. The device operates within a supply voltage range of 4.5 V to 18 V and draws a maximum quiescent current of 500 µA. It supports a load current up to 10 mA and functions across an extended industrial temperature range of −40°C to +125°C.

Feature Summary

XFET architecture delivers low noise and high accuracy
Patented temperature drift curvature correction minimizes nonlinearity
Trim terminal allows ±0.5% output adjustment without compromising performance

Applications

Precision data acquisition systems
High resolution converters
Optical network control circuits

Procurement Notes

Verify the specific B-grade electrical specifications against the official datasheet prior to implementation. Confirm that the SOIC-8 package dimensions align with the target PCB layout constraints. Ensure the input voltage remains within the specified headroom requirements relative to the 2.5 V output during operation.

Selection Notes

Select this component when stringent low-noise and long-term stability are required in precision conversion applications. The B-grade variant offers tighter accuracy tolerances compared to standard grades. Consider the trim capability if system-level calibration is necessary to compensate for external circuit errors.

Part Context

This part belongs to the ADR42x family of second-generation eXtra implanted junction FET voltage references. The series includes variants with different nominal outputs such as 2.048 V, 3.00 V, and 5.00 V. All members share the same core XFET technology and package options.