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ADR291GRUZ-REEL7

更新时间： 2024-09-23 12:29:07
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亚德诺 - ADI 电源电路参考电压源光电二极管
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20页 348K
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Low Noise Micropower 2.5 V and 4.096 V Precision Voltage References

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ADR291GRUZ-REEL7 数据手册

 浏览型号ADR291GRUZ-REEL7的Datasheet PDF文件第2页浏览型号ADR291GRUZ-REEL7的Datasheet PDF文件第3页浏览型号ADR291GRUZ-REEL7的Datasheet PDF文件第4页浏览型号ADR291GRUZ-REEL7的Datasheet PDF文件第5页浏览型号ADR291GRUZ-REEL7的Datasheet PDF文件第6页浏览型号ADR291GRUZ-REEL7的Datasheet PDF文件第7页 
Low Noise Micropower 2.5 V and  
4.096 V Precision Voltage References  
ADR291/ADR292  
CONNECTION DIAGRAMS  
FEATURES  
Supply range  
2.8 V to 15 V, ADR291  
4.4 V to 15 V, ADR292  
Supply current: 15 μA maximum  
Low noise: 8 μV and 12 μV p-p (0.1 Hz to 10 Hz)  
High output current: 5 mA  
NC  
1
2
3
4
8
7
6
5
NC  
NC  
V
ADR291/  
ADR292  
V
IN  
NC  
TOP VIEW  
OUT  
(Not to Scale)  
GND  
NC  
NC = NO CONNECT  
Figure 1. 8-Lead SOIC (R-8)  
Temperature range: −40°C to +125°C  
Pin-compatible with REF02/REF19x  
1
2
3
4
NC  
8
7
6
5
NC  
NC  
ADR291/  
ADR292  
V
IN  
NC  
TOP VIEW  
V
OUT  
APPLICATIONS  
(Not to Scale)  
GND  
NC  
Portable instrumentation  
NC = NO CONNECT  
Precision reference for 3 V and 5 V systems  
Analog-to-digital and digital-to-analog converter reference  
Solar-powered applications  
Figure 2. 8-Lead TSSOP (RU-8)  
GND  
Loop-current-powered instruments  
V
V
IN  
OUT  
3
2
1
ADR291  
TOP VIEW  
(Not to Scale)  
Figure 3. 3-Lead TO-92 (T-3)  
GENERAL DESCRIPTION  
The ADR291 and ADR292 are low noise, micropower precision  
voltage references that use an XFET® reference circuit. The new  
XFET architecture offers significant performance improvements  
over traditional band gap and buried Zener-based references.  
Improvements include one quarter the voltage noise output of  
band gap references operating at the same current, very low and  
ultralinear temperature drift, low thermal hysteresis, and  
excellent long-term stability.  
coefficients for the three grades are 8 ppm/°C, 15 ppm/°C, and  
25 ppm/°C maximum, respectively. Line regulation and load  
regulation are typically 30 ppm/V and 30 ppm/mA, maintaining  
the reference’s overall high performance. For a device with 5.0 V  
output, refer to the ADR293 data sheet.  
The ADR291 and ADR292 references are specified over the  
extended industrial temperature range of −40°C to +125°C.  
Devices are available in the 8-lead SOIC, 8-lead TSSOP, and  
3-lead TO-92 packages.  
The ADR291/ADR292 family is a series of voltage references  
providing stable and accurate output voltages from supplies as  
low as 2.8 V for the ADR291. Output voltage options are 2.5 V  
and 4.096 V for the ADR291 and ADR292, respectively.  
Table 1. ADR291/ADR292 Product  
Temperature  
Coefficient  
Output  
Initial  
Quiescent current is only 12 μA, making these devices ideal for  
battery-powered instrumentation. Three electrical grades are  
available offering initial output accuracies of 2 mV, 3 mV,  
and 6 mV maximum for the ADR291, and 3 mV, 4 mV,  
and 6 mV maximum for the ADR292. Temperature  
Part No.  
ADR291  
ADR292  
Voltage (V)  
Accuracy (±±)  
(ppm/°C) Max  
2.500  
4.096  
0.08, 0.12, 0.24  
0.07, 0.10, 0.15  
8, 15, 25  
8, 15, 25  
Rev. F  
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 ©2007–2011 Analog Devices, Inc. All rights reserved.  
 
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ADR291GRUZ-REEL7 替代型号

型号 品牌 替代类型 描述 数据表
ADR291GRZ-REEL7 ADI

完全替代

 Low Noise Micropower 2.5 V and 4.096 V Precision Voltage References
ADR291GRUZ-REEL ADI

完全替代

 Low Noise Micropower 2.5 V and 4.096 V Precision Voltage References
ADR291GRUZ ADI

类似代替

 Low Noise Micropower 2.5 V and 4.096 V Precision Voltage References

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