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ADR421ARZ

更新时间: 2024-11-12 12:27:23
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页数 文件大小 规格书
24页 392K
描述
Ultraprecision, Low Noise, 2.048 V/2.500 V/ 3.00 V/5.00 V XFET® Voltage References

ADR421ARZ 数据手册

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Ultraprecision, Low Noise, 2.048 V/2.500 V/  
3.00 V/5.00 V XFET® Voltage References  
ADR420/ADR421/ADR423/ADR425  
FEATURES  
PIN CONFIGURATION  
Low noise (0.1 Hz to 10 Hz)  
ADR420: 1.75 μV p-p  
ADR421: 1.75 μV p-p  
TP  
1
2
8
TP  
NIC  
V
ADR420/  
ADR421/  
ADR423/  
ADR425  
V
7
6
IN  
NIC  
3
4
OUT  
TOP VIEW  
(Not to Scale)  
ADR423: 2.0 μV p-p  
GND  
5
TRIM  
ADR425: 3.4 μV p-p  
NIC = NO INTERNAL CONNECTION  
TP = TEST PIN (DO NOT CONNECT)  
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  
Figure 1. 8-Lead SOIC, 8-Lead MSOP  
GENERAL DESCRIPTION  
The ADR42x are a series of ultraprecision, second generation  
eXtra implanted junction FET (XFET) voltage references  
featuring low noise, high accuracy, and excellent long-term  
stability in SOIC and MSOP footprints.  
Patented temperature drift curvature correction technique and  
XFET technology minimize nonlinearity of the voltage change  
with temperature. The XFET architecture offers superior  
accuracy and thermal hysteresis to the band gap references. It  
also operates at lower power and lower supply headroom than  
the buried Zener references.  
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  
The superb noise and the stable and accurate characteristics  
of the ADR42x make them ideal for precision conversion  
applications such as optical networks and medical equipment.  
The ADR42x trim terminal can also be used to adjust the out-  
put voltage over a ±±.ꢀ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 −4±°C to +12ꢀ°C. Devices have  
8-lead SOIC or 3±5 smaller, 8-lead MSOP packages.  
Optical network control circuits  
ADR42x PRODUCTS  
Table 1.  
Initial Accuracy  
%
Output Voltage, VOUT (V)  
Model  
mV  
1, 3  
1, 3  
1.5, 4  
2, 6  
Temperature Coefficient (ppm/°C)  
ADR420  
ADR421  
ADR423  
ADR425  
2.048  
2.50  
3.00  
5.00  
0.05, 0.15  
0.04, 0.12  
0.04, 0.13  
0.04, 0.12  
3, 10  
3, 10  
3, 10  
3, 10  
Rev. I  
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. Specifications subject to change without notice. No  
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.  
Trademarks and registeredtrademarks arethe property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700 www.analog.com  
Fax: 781.461.3113 ©2001–2011 Analog Devices, Inc. All rights reserved.  
 

ADR421ARZ 替代型号

型号 品牌 替代类型 描述 数据表
ADR421ARZ-REEL7 ADI

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Ultraprecision Low Noise, 2.048 V/2.500 V/ 3.00 V/5.00 V XFET Voltage References

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