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AD536AJH

更新时间: 2024-01-06 01:01:57
品牌 Logo 应用领域
亚德诺 - ADI 转换器模拟特殊功能转换器
页数 文件大小 规格书
8页 152K
描述
Integrated Circuit True RMS-to-DC Converter

AD536AJH 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
Reach Compliance Code:not_compliant风险等级:5.92
转换器类型:RMS TO DC CONVERTERJESD-30 代码:R-XDIP-T14
JESD-609代码:e0端子数量:14
最高工作温度:125 °C最低工作温度:-55 °C
封装主体材料:CERAMIC封装代码:DIP
封装等效代码:DIP14,.3封装形状:RECTANGULAR
封装形式:IN-LINE电源:5/36/+-3/+-18 V
子类别:Analog Special Function Converters最大压摆率:2 mA
表面贴装:NO技术:BIPOLAR
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:DUALBase Number Matches:1

AD536AJH 数据手册

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Integrated Circuit  
True RMS-to-DC Converter  
a
AD536A  
FEATURES  
PIN CONFIGURATIONS AND  
True RMS-to-DC Conversion  
Laser-Trimmed to High Accuracy  
0.2% Max Error (AD536AK)  
0.5% Max Error (AD536AJ)  
Wide Response Capability:  
Computes RMS of AC and DC Signals  
450 kHz Bandwidth: V rms > 100 mV  
2 MHz Bandwidth: V rms > 1 V  
Signal Crest Factor of 7 for 1% Error  
dB Output with 60 dB Range  
Low Power: 1.2 mA Quiescent Current  
Single or Dual Supply Operation  
Monolithic Integrated Circuit  
–55؇C to +125؇C Operation (AD536AS)  
FUNCTIONAL BLOCK DIAGRAMS  
TO-100 (H-10A)  
Package  
TO-116 (D-14) and  
Q-14 Package  
I
OUT  
ABSOLUTE  
14  
13  
12  
11  
10  
9
V
1
2
3
4
5
6
7
+V  
S
IN  
VALUE  
R
BUF IN  
L
25k  
AD536A  
NC  
NC  
25k⍀  
SQUARER  
DIVIDER  
AD536A  
V  
NC  
BUF  
S
COM  
OUT  
CURRENT  
MIRROR  
BUF  
C
NC  
AV  
CURRENT  
MIRROR  
COM  
dB  
SQUARER  
DIVIDER  
+V  
S
BUF  
dB  
R
L
OUT  
25k  
BUF  
IN  
BUF  
8
ABSOLUTE  
VALUE  
I
OUT  
25k⍀  
C
V
AV  
IN  
NC = NO CONNECT  
V  
S
PRODUCT DESCRIPTION  
LCC (E-20A) Package  
The AD536A is a complete monolithic integrated circuit which  
performs true rms-to-dc conversion. It offers performance which  
is comparable or superior to that of hybrid or modular units  
costing much more. The AD536A directly computes the true  
rms value of any complex input waveform containing ac and dc  
components. It has a crest factor compensation scheme which  
allows measurements with 1% error at crest factors up to 7. The  
wide bandwidth of the device extends the measurement capabi-  
lity to 300 kHz with 3 dB error for signal levels above 100 mV.  
NC  
3
NC  
1
NC  
V
2
+V  
IN  
S
20 19  
ABSOLUTE  
VALUE  
4
5
6
7
8
18  
NC  
–V  
S
AD536A  
NC  
17 NC  
SQUARER  
DIVIDER  
16  
NC  
C
AV  
25k⍀  
CURRENT  
MIRROR  
15 NC  
NC  
14  
dB  
COM  
25k⍀  
BUF  
9
10 11 12  
13  
R
An important feature of the AD536A not previously available in  
rms converters is an auxiliary dB output. The logarithm of the  
rms output signal is brought out to a separate pin to allow the  
dB conversion, with a useful dynamic range of 60 dB. Using an  
externally supplied reference current, the 0 dB level can be con-  
veniently set by the user to correspond to any input level from  
0.1 to 2 volts rms.  
BUF BUF  
OUT IN  
NC = NO CONNECT  
I
NC  
OUT  
L
PRODUCT HIGHLIGHTS  
1. The AD536A computes the true root-mean-square level of a  
complex ac (or ac plus dc) input signal and gives an equiva-  
lent dc output level. The true rms value of a waveform is a  
more useful quantity than the average rectified value since it  
relates directly to the power of the signal. The rms value of a  
statistical signal also relates to its standard deviation.  
The AD536A is laser trimmed at the wafer level for input and  
output offset, positive and negative waveform symmetry (dc re-  
versal error), and full-scale accuracy at 7 V rms. As a result, no  
external trims are required to achieve the rated unit accuracy.  
2. The crest factor of a waveform is the ratio of the peak signal  
swing to the rms value. The crest factor compensation  
scheme of the AD536A allows measurement of highly com-  
plex signals with wide dynamic range.  
There is full protection for both inputs and outputs. The input  
circuitry can take overload voltages well beyond the supply lev-  
els. Loss of supply voltage with inputs connected will not cause  
unit failure. The output is short-circuit protected.  
3. The only external component required to perform measure-  
ments to the fully specified accuracy is the capacitor which  
sets the averaging period. The value of this capacitor determines  
the low frequency ac accuracy, ripple level and settling time.  
The AD536A is available in two accuracy grades (J, K) for com-  
mercial temperature range (0°C to +70°C) applications, and one  
grade (S) rated for the –55°C to +125°C extended range. The  
AD536AK offers a maximum total error of 2 mV 0.2% of  
reading, and the AD536AJ and AD536AS have maximum errors  
of 5 mV 0.5% of reading. All three versions are available in  
either a hermetically sealed 14-lead DIP or 10-pin TO-100  
metal can. The AD536AS is also available in a 20-leadless her-  
metically sealed ceramic chip carrier.  
4. The AD536A will operate equally well from split supplies or  
a single supply with total supply levels from 5 to 36 volts.  
The one milliampere quiescent supply current makes the  
device well-suited for a wide variety of remote controllers and  
battery powered instruments.  
5. The AD536A directly replaces the AD536 and provides im-  
proved bandwidth and temperature drift specifications.  
REV. B  
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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