5秒后页面跳转
AD637JR-REEL PDF预览

AD637JR-REEL

更新时间: 2024-01-26 07:02:03
品牌 Logo 应用领域
亚德诺 - ADI 转换器模拟特殊功能转换器光电二极管
页数 文件大小 规格书
10页 163K
描述
High Precision, Wide-Band RMS-to-DC Converter

AD637JR-REEL 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:DIP包装说明:CERDIP-14
针数:14Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.08Is Samacsys:N
转换器类型:RMS TO DC CONVERTERJESD-30 代码:R-GDIP-T14
JESD-609代码:e0长度:19.43 mm
最大线性误差 (EL):0.05%最大负电源电压:-18 V
最小负电源电压:-3 V标称负供电电压:-15 V
功能数量:1端子数量:14
最大工作频率:0.15 MHz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封装等效代码:DIP14,.3
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:7 V
电源:+-15 V认证状态:Not Qualified
座面最大高度:5.08 mm子类别:Analog Special Function Converters
最大压摆率:3 mA最大供电电压:18 V
最小供电电压:3 V标称供电电压:15 V
表面贴装:NO温度等级:MILITARY
端子面层:Tin/Lead (Sn/Pb)端子形式:THROUGH-HOLE
端子节距:2.54 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED最大总误差:0.7%
宽度:7.62 mmBase Number Matches:1

AD637JR-REEL 数据手册

 浏览型号AD637JR-REEL的Datasheet PDF文件第2页浏览型号AD637JR-REEL的Datasheet PDF文件第3页浏览型号AD637JR-REEL的Datasheet PDF文件第4页浏览型号AD637JR-REEL的Datasheet PDF文件第5页浏览型号AD637JR-REEL的Datasheet PDF文件第6页浏览型号AD637JR-REEL的Datasheet PDF文件第7页 
High Precision,  
a
Wide-Band RMS-to-DC Converter  
AD637  
FUNCTIONAL BLOCK DIAGRAMS  
FEATURES  
High Accuracy  
Ceramic DIP (D) and  
SOIC (R) Package  
0.02% Max Nonlinearity, 0 V to 2 V RMS Input  
0.10% Additional Error to Crest Factor of 3  
Wide Bandwidth  
8 MHz at 2 V RMS Input  
600 kHz at 100 mV RMS  
Computes:  
True RMS  
Square  
Mean Square  
Absolute Value  
dB Output (60 dB Range)  
Chip Select-Power Down Feature Allows:  
Analog “3-State” Operation  
Quiescent Current Reduction from 2.2 mA to 350 A  
Side-Brazed DIP, Low Cost Cerdip and SOIC  
Cerdip (Q) Packages  
BUFFER  
AD637  
BUFFER  
AD637  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
1
2
3
4
5
6
7
14  
13  
12  
11  
10  
9
ABSOLUTE  
VALUE  
ABSOLUTE  
VALUE  
BIAS  
SECTION  
BIAS  
SQUARER/DIVIDER  
SECTION  
SQUARER/DIVIDER  
25k  
25k⍀  
25k⍀  
25k⍀  
FILTER  
FILTER  
8
PRODUCT DESCRIPTION  
The AD637 is available in two accuracy grades (J, K) for com-  
mercial (0°C to +70°C) temperature range applications; two  
accuracy grades (A, B) for industrial (–40°C to +85°C) applica-  
tions; and one (S) rated over the –55°C to +125°C temperature  
range. All versions are available in hermetically-sealed, 14-lead  
side-brazed ceramic DIPs as well as low cost cerdip packages. A  
16-lead SOIC package is also available.  
The AD637 is a complete high accuracy monolithic rms-to-dc  
converter that computes the true rms value of any complex  
waveform. It offers performance that is unprecedented in inte-  
grated circuit rms-to-dc converters and comparable to discrete  
and modular techniques in accuracy, bandwidth and dynamic  
range. A crest factor compensation scheme in the AD637 per-  
mits measurements of signals with crest factors of up to 10 with  
less than 1% additional error. The circuit’s wide bandwidth per-  
mits the measurement of signals up to 600 kHz with inputs of  
200 mV rms and up to 8 MHz when the input levels are above  
1 V rms.  
PRODUCT HIGHLIGHTS  
1. The AD637 computes the true root-mean-square, mean  
square, or absolute value of any complex ac (or ac plus dc)  
input waveform and gives an equivalent dc output voltage.  
The true rms value of a waveform is more useful than an  
average rectified signal since it relates directly to the power of  
the signal. The rms value of a statistical signal is also related  
to the standard deviation of the signal.  
As with previous monolithic rms converters from Analog Devices,  
the AD637 has an auxiliary dB output available to the user. The  
logarithm of the rms output signal is brought out to a separate  
pin allowing direct dB measurement with a useful range of  
60 dB. An externally programmed reference current allows the  
user to select the 0 dB reference voltage to correspond to any  
level between 0.1 V and 2.0 V rms.  
2. The AD637 is laser wafer trimmed to achieve rated perfor-  
mance without external trimming. The only external compo-  
nent required is a capacitor which sets the averaging time  
period. The value of this capacitor also determines low fre-  
quency accuracy, ripple level and settling time.  
A chip select connection on the AD637 permits the user to  
decrease the supply current from 2.2 mA to 350 µA during  
periods when the rms function is not in use. This feature facili-  
tates the addition of precision rms measurement to remote or  
hand-held applications where minimum power consumption is  
critical. In addition when the AD637 is powered down the out-  
put goes to a high impedance state. This allows several AD637s  
to be tied together to form a wide-band true rms multiplexer.  
3. The chip select feature of the AD637 permits the user to  
power down the device down during periods of nonuse,  
thereby, decreasing battery drain in remote or hand-held  
applications.  
4. The on-chip buffer amplifier can be used as either an input  
buffer or in an active filter configuration. The filter can be  
used to reduce the amount of ac ripple, thereby, increasing  
the accuracy of the measurement.  
The input circuitry of the AD637 is protected from overload  
voltages that are in excess of the supply levels. The inputs will  
not be damaged by input signals if the supply voltages are lost.  
REV. E  
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  

与AD637JR-REEL相关器件

型号 品牌 描述 获取价格 数据表
AD637JR-REEL7 ADI High Precision, Wide-Band RMS-to-DC Converter

获取价格

AD637JRRL ADI RMS TO DC CONVERTER, 0.15MHz, PDSO16

获取价格

AD637JRZ ADI High Precision, Wideband RMS-to-DC Converter

获取价格

AD637JRZ-R7 ADI High Precision, Wideband RMS-to-DC Converter

获取价格

AD637JRZ-REEL ADI RMS TO DC CONVERTER, 0.15MHz, PDSO16, SOIC-16

获取价格

AD637JRZ-REEL7 ADI RMS TO DC CONVERTER, 0.15MHz, PDSO16, SOIC-16

获取价格