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ADR421, ADR421A, ADR421AR

Table of contents:
Info of ADR421
Info of ADR421A
Info of ADR421AR

ADR421, ADR421A, ADR421AR Selling Leads, Datasheet

MFG:Analog Devices Inc Category:Integrated Circuits (ICs) Package Cooled:AD D/C:06+

ADR421, ADR421A, ADR421AR Datasheet download

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Part Number: ADR421AR

Category: Integrated Circuits (ICs)

MFG: Analog Devices Inc

Package Cooled: AD

D/C: 06+

Description: IC REF PREC LONOISE 2.50V 8-SOIC

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ADR421 General Description

The ADR42x series are ultraprecision second-generation XFET voltage references featuring low noise, high accuracy, and excellent long-term stability in a SOIC and Mini_SOIC footprints. Patented temperature drift curvature correction technique and XFET (eXtra implanted junction FET) technology minimize nonlinearity of the voltage change with temperature. The XFET architecture offers superior accuracy and thermal hysteresis to the bandgap references. It also operates at lower power and lower supply headroom than the Buried Zener references.

The superb noise, stable, and accurate characteristics of ADR42x make them ideal for precision conversion applications such as optical network and medical equipment. The ADR42x trim terminal can also be used to adjust the output voltage over a ±0.5% range without compromising any other performance. The ADR42x series voltage references offer two electrical grades and are specified over the extended industrial temperature range of 40°C to +125°C. Devices are available in 8-lead SOIC-8 or 30% smaller 8-lead Mini_SOIC-8 packages.

ADR421 Maximum Ratings

Supply Voltage........................................................................................................... 18 V
Output Short-Circuit Duration to GND................................................................ Indefinite
Storage Temperature Range
R, RM Packages . . . . . . . . . . . . . . . . . . . ...............................................65°C to +150°C
Operating Temperature Range
ADR42x.................................................. .............................................. 40°C to +125°C
Junction Temperature Range
R, RM Packages......................................................................................65°C to +150°C
Lead Temperature Range (Soldering, 60 sec) ........................................................300°C
*Absolute maximum ratings apply at 25°C, unless otherwise noted.

ADR421 Features

Low Noise (0.1 Hz to 10 Hz)
ADR420: 1.75 V p-p
ADR421: 1.75 V p-p
ADR423: 2.0 V p-p
ADR425: 3.4 V p-p
Low Temperature Coefficient: 3 ppm/C
Long-Term Stability: 50 ppm/1000 Hours
Load Regulation: 70 ppm/mA
Line Regulation: 35 ppm/V
Low Hysteresis: 40 ppm Typical
Wide Operating Range
ADR420: 4 V to 18 V
ADR421: 4.5 V to 18 V
ADR423: 5 V to 18 V
ADR425: 7 V to 18 V
Quiescent Current: 0.5 mA Maximum
High Output Current: 10 mA
Wide Temperature Range: 40C to +125C

ADR421 Typical Application

Precision Data Acquisition Systems
High-Resolution Converters
Battery-Powered Instrumentation
Portable Medical Instruments
Industrial Process Control Systems
Precision Instruments
Optical Network Control Circuits

ADR421 Connection Diagram

ADR421AR Parameters

Technical/Catalog Information	ADR421AR
Vendor	Analog Devices Inc
Category	Integrated Circuits (ICs)
Reference Type	Series
Voltage - Output	2.5V
Tolerance	±0.12%
Temperature Coefficient	10ppm/°C
Voltage - Input	4.5 ~ 18 V
Number of Channels	1
Current - Cathode	-
Current - Quiescent	500A
Current - Output	10mA
Operating Temperature	-40°C ~ 125°C
Package / Case	8-SOIC (3.9mm Width)
Packaging	Tube
Drawing Number	*
RoHS Status	RoHS Non-Compliant
Other Names	ADR421AR ADR421AR

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