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參數資料
| 型號： | ADR421 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Ultraprecision Low Noise, 2.048 V/2.500 V/ 3.00 V/5.00 V XFET Voltage References |
| 中文描述： | 超精密低噪聲，2.048 V/2.500第V / 3.00 V/5.00 V XFET電壓基準 |
| 文件頁數： | 1/16頁 |
| 文件大小： | 223K |
| 代理商： | ADR421 |
REV. B
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
a
ADR420/ADR421/ADR423/ADR425
Tel: 781/329-4700Fax: 781/326-8703
Analog Devices, Inc., 2002Ultraprecision Low Noise, 2.048 V/2.500 V/
3.00 V/5.00 V XFET
Voltage References
PIN CONFIGURATION
Surface-Mount Packages
8-Lead SOIC
8-Lead Mini_SOIC
TOP VIEW
(Not to Scale)
8
7
6
5
1
2
3
4
NIC = NO INTERNAL CONNECTION
TP = TEST PIN (DO NOT CONNECT)
TP
V
IN
NIC
GND
TP
NIC
V
OUT
TRIM
ADR42x
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: –40 C to +125 C
APPLICATIONS
Precision Data Acquisition Systems
High-Resolution Converters
Battery-Powered Instrumentation
Portable Medical Instruments
Industrial Process Control Systems
Precision Instruments
Optical Network Control Circuits
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.
XFET is a registered trademark of Analog Devices, Inc.
Table I. ADR42x Products
Output
Voltage
V
O
2.048
2.50
3.00
5.00
Initial
Accuracy
%
ADR420
Products
Tempco
ppm/
°
C
mV
ADR420
ADR421
ADR423
ADR425
1, 3
1, 3
1.5, 4
2, 6
0.05, 0.15
0.04, 0.12
0.04, 0.12
0.04, 0.12
3, 10
3, 10
3, 10
3, 10
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相關代理商/技術參數 |
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|---|---|
| ADR4210001RMZ7 | 制造商:Analog Devices 功能描述: |
| ADR421AR | 功能描述:IC VREF SERIES PREC 2.5V 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 電壓基準 系列:XFET® 標準包裝:3,000 系列:- 基準類型:旁路，精度 輸出電壓:5V 容差:±0.5% 溫度系數:100ppm/°C 輸入電壓:- 通道數:1 電流 - 陰極:80µA 電流 - 靜態:- 電流 - 輸出:15mA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:TO-236-3，SC-59，SOT-23-3 供應商設備封裝:SOT-23-3 包裝:帶卷 (TR) 其它名稱:LM4040CIM3-5.0MLTRLM4040CIM3-5.0MLTR-ND |
| ADR421AR | 制造商:Analog Devices 功能描述:SEMICONDUCTORS ((NW)) |
| ADR421ARM | 制造商:Analog Devices 功能描述:V-Ref Precision 2.5V 10mA 8-Pin MSOP Tube 制造商:Analog Devices 功能描述:IC VOLT REF |
| ADR421ARM-REEL7 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述:IC,VOLT REFERENCE,FIXED,2.5V,TSSOP,8PIN,PLASTIC |
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