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ADA4930-1SCPZ-EPR7 PDF预览

ADA4930-1SCPZ-EPR7

更新时间： 2024-11-26 20:49:59
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亚德诺 - ADI 驱动接口集成电路
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Ultralow Noise Drivers for Low Voltage ADCs

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ADA4930-1SCPZ-EPR7 数据手册

 浏览型号ADA4930-1SCPZ-EPR7的Datasheet PDF文件第2页浏览型号ADA4930-1SCPZ-EPR7的Datasheet PDF文件第3页浏览型号ADA4930-1SCPZ-EPR7的Datasheet PDF文件第4页浏览型号ADA4930-1SCPZ-EPR7的Datasheet PDF文件第5页浏览型号ADA4930-1SCPZ-EPR7的Datasheet PDF文件第6页浏览型号ADA4930-1SCPZ-EPR7的Datasheet PDF文件第7页 
Ultralow Noise  
Drivers for Low Voltage ADCs  
Data Sheet  
FEATURES  
ADA4930-1/ADA4930-2  
FUNCTIONAL BLOCK DIAGRAMS  
Low input voltage noise: 1.2 nV/√Hz  
Low common-mode output: 0.9 V on single supply  
Extremely low harmonic distortion  
−104 dBc HD2 at 10 MHz  
−79 dBc HD2 at 70 MHz  
−73 dBc HD2 at 100 MHz  
ADA4930-1  
12 PD  
–FB  
+IN  
–IN  
1
2
3
4
11 –OUT  
10 +OUT  
+FB  
9 V  
OCM  
−101 dBc HD3 at 10 MHz  
−82 dBc HD3 at 70 MHz  
−75 dBc HD3 at 100 MHz  
High speed  
Figure 1.  
ADA4930-2  
Figure 2.  
−3 dB bandwidth of 1.35 GHz, G = 1  
Slew rate: 3400 V/μs, 25% to 75%  
0.1 dB gain flatness to 380 MHz  
Fast overdrive recovery of 1.5 ns  
0.5 mV typical offset voltage  
Externally adjustable gain  
Differential-to-differential or single-ended-to-differential  
operation  
Adjustable output common-mode voltage  
Single-supply operation: 3.3 V or 5 V  
–IN1  
+FB1  
1
18 +OUT1  
2
3
4
5
6
17 V  
OCM1  
16 –V  
–V  
15  
+V  
S2  
S2  
S1  
+V  
S1  
–FB2  
+IN2  
14  
PD2  
13 –OUT2  
100  
APPLICATIONS  
ADC drivers  
Single-ended-to-differential converters  
IF and baseband gain blocks  
Differential buffers  
10  
Line drivers  
GENERAL DESCRIPTION  
1
The ADA4930-1/ADA4930-2 are very low noise, low distortion,  
high speed differential amplifiers. They are an ideal choice for  
driving 1.8 V high performance ADCs with resolutions up to  
14 bits from dc to 70 MHz. The adjustable output common  
mode allows the ADA4930-1/ADA4930-2 to match the input of  
the ADC. The internal common-mode feedback loop provides  
exceptional output balance, suppression of even-order harmonic  
distortion products, and dc level translation.  
0
10  
100  
1k  
10k  
100k  
1M  
10M  
100M  
FREQUENCY (Hz)  
Figure 3. Voltage Noise Spectral Density  
The low dc offset and excellent dynamic performance of the  
ADA4930-1/ADA4930-2 make them well suited for a wide  
variety of data acquisition and signal processing applications.  
With the ADA4930-1/ADA4930-2, differential gain configurations  
are easily realized with a simple external feedback network of  
four resistors determining the closed-loop gain of the amplifier.  
The ADA4930-1 is available in a Pb-free, 3 mm × 3 mm 16-lead  
LFCSP, and the ADA4930-2 is available in a Pb-free, 4 mm × 4 mm  
24-lead LFCSP. The pinout has been optimized to facilitate printed  
circuit board (PCB) layout and minimize distortion. The  
ADA4930-1 is specified to operate over the −40°C to +105°C  
temperature range, and the ADA4930-2 is specified to operate over  
the −40°C to +105°C temperature range for 3.3 V or 5 V supply  
voltages.  
The ADA4930-1/ADA4930-2 are fabricated using Analog  
Devices, Inc., proprietary silicon-germanium (SiGe), comple-  
mentary bipolar process, enabling them to achieve very low  
levels of distortion with an input voltage noise of only 1.2 nV/√Hz.  
Rev. B  
Document Feedback  
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 ©2010–2015 Analog Devices, Inc. All rights reserved.  
Technical Support  
www.analog.com  
 
 
 
 
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