参数资料
型号: AD736KR-REEL
厂商: ANALOG DEVICES INC
元件分类: 模拟专用变换器
英文描述: Low Cost, Low Power, True RMS-to-DC Converter
中文描述: RMS TO DC CONVERTER, 0.005 MHz, PDSO8
封装: MS-012AA, SOIC-8
文件页数: 8/8页
文件大小: 218K
代理商: AD736KR-REEL
AD736
REV. C
–8–
C
P
T he input coupling capacitor, C
C
, in conjunction with the 8 k
internal input scaling resistor, determine the –3 dB low fre-
quency rolloff. T his frequency, F
L
, is equal to:
F
L
=
2
π
(8,000)(
TheValueof C
C
inFarads
)
1
Note that at F
L
, the amplitude error will be approximately
–30% (–3 dB) of reading. T o reduce this error to 0.5% of read-
ing, choose a value of C
C
that sets F
L
at one tenth the lowest
frequency to be measured.
In addition, if the input voltage has more than 100 mV of dc
offset, than the ac coupling network shown in Figure 21 should
be used in addition to capacitor C
C
.
Applications Circuits
Figure 19. AD736 with a High Impedance Input Attenuator
Figure 20. Differential Input Connection
Figure 21. External Output V
OS
Adjustment
Figure 22. Battery Powered Option
Figure 23. Low Z, AC Coupled Input Connection
OUT LINE DIME NSIONS
Dimensions shown in inches and (mm).
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