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5962-9095501MRA PDF预览

5962-9095501MRA

更新时间: 2024-02-02 15:59:35
品牌 Logo 应用领域
亚德诺 - ADI 放大器
页数 文件大小 规格书
16页 281K
描述
DC-Coupled Demodulating 120 MHz Logarithmic Amplifier

5962-9095501MRA 技术参数

生命周期:Obsolete零件包装代码:DIP
包装说明:DIP,针数:20
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.56
Is Samacsys:N模拟集成电路 - 其他类型:LOG OR ANTILOG AMPLIFIER
标称带宽:120 MHzJESD-30 代码:R-GDIP-T20
JESD-609代码:e0负电源电压最大值(Vsup):-7.5 V
负电源电压最小值(Vsup):-4.5 V标称负供电电压 (Vsup):-5 V
最大负输入电压:-3 V功能数量:1
端子数量:20最高工作温度:125 °C
最低工作温度:-55 °C封装主体材料:CERAMIC, GLASS-SEALED
封装代码:DIP封装形状:RECTANGULAR
封装形式:IN-LINE峰值回流温度(摄氏度):NOT SPECIFIED
最大正输入电压:0.3 V认证状态:Qualified
筛选级别:MIL-STD-883最大供电电压 (Vsup):7.5 V
最小供电电压 (Vsup):4.5 V标称供电电压 (Vsup):5 V
表面贴装:NO温度等级:MILITARY
端子面层:TIN LEAD端子形式:THROUGH-HOLE
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
Base Number Matches:1

5962-9095501MRA 数据手册

 浏览型号5962-9095501MRA的Datasheet PDF文件第2页浏览型号5962-9095501MRA的Datasheet PDF文件第3页浏览型号5962-9095501MRA的Datasheet PDF文件第4页浏览型号5962-9095501MRA的Datasheet PDF文件第5页浏览型号5962-9095501MRA的Datasheet PDF文件第6页浏览型号5962-9095501MRA的Datasheet PDF文件第7页 
DC-Coupled Demodulating  
a
120 MHz Logarithmic Amplifier  
AD640*  
FEATURES  
signal output at +50 dB (referred to input) is provided to operate  
AD640s in cascade.  
Complete, Fully Calibrated Monolithic System  
Five Stages, Each Having 10 dB Gain, 350 MHz BW  
Direct Coupled Fully Differential Signal Path  
Logarithmic Slope, Intercept and AC Response are  
Stable Over Full Military Temperature Range  
Dual Polarity Current Outputs Scaled 1 mA/Decade  
Voltage Slope Options (1 V/Decade, 100 mV/dB, etc.)  
Low Power Operation (Typically 220 mW at ؎5 V)  
Low Cost Plastic Packages Also Available  
The logarithmic response is absolutely calibrated to within ±1 dB  
for dc or square wave inputs from ±0.75 mV to ±200 mV, with  
an intercept (logarithmic offset) at 1 mV dc. An integral X10  
attenuator provides an alternative input range of ±7.5 mV to  
±2 V dc. Scaling is also guaranteed for sinusoidal inputs.  
The AD640B is specified for the industrial temperature range of  
–40°C to +85°C and the AD640T, available processed to MIL-  
STD-883B, for the military range of –55°C to +125°C. Both are  
available in 20-lead side-brazed ceramic DIPs or leadless chip  
carriers (LCC). The AD640J is specified for the commercial  
temperature range of 0°C to +70°C, and is available in both  
20-lead plastic DIP (N) and PLCC (P) packages.  
APPLICATIONS  
Radar, Sonar, Ultrasonic and Audio Systems  
Precision Instrumentation from DC to 120 MHz  
Power Measurement with Absolute Calibration  
Wide Range High Accuracy Signal Compression  
Alternative to Discrete and Hybrid IF Strips  
Replaces Several Discrete Log Amp ICs  
This device is now available to Standard Military Drawing  
(DESC) number 5962-9095501MRA and 5962-9095501M2A.  
PRODUCT HIGHLIGHTS  
PRODUCT DESCRIPTION  
1. Absolute calibration of a wideband logarithmic amplifier is  
unique. The AD640 is a high accuracy measurement device,  
not simply a logarithmic building block.  
2. Advanced design results in unprecedented stability over the  
full military temperature range.  
3. The fully differential signal path greatly reduces the risk of  
instability due to inadequate power supply decoupling and  
shared ground connections, a serious problem with com-  
monly used unbalanced designs.  
4. Differential interfaces also ensure that the appropriate ground  
connection can be chosen for each signal port. They further  
increase versatility and simplify applications. The signal input  
impedance is ~500 kin shunt with ~2 pF.  
The AD640 is a complete monolithic logarithmic amplifier. A single  
AD640 provides up to 50 dB of dynamic range for frequencies  
from dc to 120 MHz. Two AD640s in cascade can provide up to  
95 dB of dynamic range at reduced bandwidth. The AD640 uses a  
successive detection scheme to provide an output current propor-  
tional to the logarithm of the input voltage. It is laser calibrated to  
close tolerances and maintains high accuracy over the full military  
temperature range using supply voltages from ±4.5 V to ±7.5 V.  
The AD640 comprises five cascaded dc-coupled amplifier/limiter  
stages, each having a small signal voltage gain of 10 dB and a –3 dB  
bandwidth of 350 MHz. Each stage has an associated full-wave  
detector, whose output current depends on the absolute value of its  
input voltage. The five outputs are summed to provide the video  
output (when low-pass filtered) scaled at 1 mA per decade (50 µA  
per dB). On chip resistors can be used to convert this output cur-  
rent to a voltage with several convenient slope options. A balanced  
5. The dc-coupled signal path eliminates the need for numerous  
interstage coupling capacitors and simplifies logarithmic  
conversion of subsonic signals.  
(continued on page 4)  
FUNCTIONAL BLOCK DIAGRAM  
RG1  
17  
RG0  
16  
RG2  
15  
LOG OUT  
14  
LOG COM  
13  
1k⍀  
1k⍀  
12 +V  
INTERCEPT POSITIONING BIAS  
S
18  
19  
COM  
FULL-WAVE  
DETECTOR  
FULL-WAVE  
DETECTOR  
FULL-WAVE  
DETECTOR  
FULL-WAVE  
DETECTOR  
FULL-WAVE  
DETECTOR  
ATN OUT  
20  
1
SIG +IN  
SIG –IN  
ATN LO  
11  
10  
SIG +OUT  
SIG –OUT  
10dB  
10dB  
10dB  
10dB  
10dB  
AMPLIFIER/LIMITER  
AMPLIFIER/LIMITER  
AMPLIFIER/LIMITER  
AMPLIFIER/LIMITER  
AMPLIFIER/LIMITER  
2
27⍀  
30⍀  
3
4
ATN COM  
ATN COM  
BL2  
ITC  
9
8
270⍀  
5
6
7
SLOPE BIAS REGULATOR  
GAIN BIAS REGULATOR  
ATN IN  
BL1  
–V  
S
*Protected under U.S. patent number 4,990,803.  
REV. C  
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  
which may result from its use. No license is granted by implication or  
otherwise under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
Fax: 781/326-8703  
World Wide Web Site: http://www.analog.com  
© Analog Devices, Inc., 1999  

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