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AD536AKHZ

更新时间: 2024-01-31 23:28:45
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
17页 558K
描述
Integrated Circuit True RMS-to-DC Converter

AD536AKHZ 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

AD536AKHZ 数据手册

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Integrated Circuit  
True RMS-to-DC Converter  
AD536A  
Data Sheet  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
AD536A  
True rms-to-dc conversion  
Laser trimmed to high accuracy  
0.2% maximum error (AD536AK)  
0.5% maximum 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  
ABSOLUTE  
VALUE  
V
IN  
dB  
SQUARER/  
DIVIDER  
COM  
+
+V  
S
C
AV  
CURRENT  
MIRROR  
25kΩ  
R
L
Low power: 1.2 mA quiescent current  
Single- or dual-supply operation  
Monolithic integrated circuit  
I
OUT  
BUFFER IN  
−55°C to +125°C operation (AD536AS)  
BUF  
25kΩ  
BUFFER  
OUT  
GENERAL DESCRIPTION  
80kΩ  
–V  
The AD536A is a complete monolithic integrated circuit that  
performs true rms-to-dc conversion. It offers performance  
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.  
A crest factor compensation scheme allows measurements with 1%  
error at crest factors up to 7. The wide bandwidth of the device  
extends the measurement capability to 300 kHz with less than 3 dB  
errors for signal levels greater than 100 m V.  
S
Figure 1.  
The AD536A is available in two accuracy grades (J and K) for  
commercial 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, while the AD536AJ and AD536AS have maximum  
errors of 5 mV 0.5% of reading. All three versions are available  
in a hermetically sealed 14-lead DIP or a 10-pin TO-100 metal  
header package. The AD536AS is also available in a 20-terminal  
leadless hermetically sealed ceramic chip carrier.  
An important feature of the AD536A, not previously available  
in rms converters, is an auxiliary dB output pin. 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  
conveniently set to correspond to any input level from 0.1 V to  
2 V rms.  
The AD536A computes the true root-mean-square level of a  
complex ac (or ac plus dc) input signal and provides an equiva-  
lent dc output level. The true rms value of a waveform is a more  
useful quantity than the average rectified value because 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 to minimize input and output offset  
voltage, to optimize positive and negative waveform symmetry  
(dc reversal error), and to provide full-scale accuracy at 7 V rms.  
As a result, no external trims are required to achieve the rated  
unit accuracy.  
An external capacitor is required to perform measurements to the  
fully specified accuracy. The value of this capacitor determines the  
low frequency ac accuracy, ripple amplitude, and settling time.  
The input and output pins are fully protected. The input circuitry  
can take overload voltages well beyond the supply levels. Loss of  
supply voltage with the input connected to external circuitry does  
not cause the device to fail. The output is short-circuit protected.  
The AD536A operates equally well from split supplies or a  
single supply with total supply levels from 5 V to 36 V. With  
1 mA quiescent supply current, the device is well suited for a  
wide variety of remote controllers and battery-powered  
instruments.  
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  
rightsof third parties that may result fromits 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 andregisteredtrademarks are the 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 ©1976–2012 Analog Devices, Inc. All rights reserved.  
 
 
 

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