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零件编号
产品描述 (功能)
AD637-EVALZ 查看數據表(PDF) - Analog Devices
零件编号
产品描述 (功能)
生产厂家
AD637-EVALZ
High Precision, Wideband RMS-to-DC Converter
Analog Devices
AD637-EVALZ Datasheet PDF : 25 Pages
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AD637
Data Sheet
Table 2.
Parameter
TRANSFER FUNCTION
CONVERSION ACCURACY
Total Error, Internal Trim
T
MIN
to T
MAX
vs. Supply
DC Reversal
Nonlinearity
Total Error
ERROR VS. CREST FACTOR (CF)
AVERAGING TIME CONSTANT
INPUT CHARACTERISTICS
Signal Range
Input Resistance
Input Offset Voltage
FREQUENCY RESPONSE
Bandwidth for 1% (0.09 dB) Additional Error
±3 dB
OUTPUT CHARACTERISTICS
Offset Voltage
Voltage Swing, 2 kΩ load
Output Current
Short-Circuit Current
Resistance
Resistance
dB OUTPUT
Error
Scale Factor
Scale Factor Tempco
I
REF
for 0 dB = 1 V rms
I
REF
Range
Test Conditions/Comments
See Figure 5
V
IN
= 300 mV
V
IN
= −300 mV
−2 V < V
IN
< +2 V
2 V full scale
7 V full scale
External trim
Additional, at 1 V rms
For CF = 1 to 2
For CF = 3
For CF = 10
VS = ±15 V
Continuous
Transient
VS = ±5 V
Continuous
Transient
V
IN
= 20 mV
V
IN
= 200 mV
V
IN
= 2 V
V
IN
= 20 mV
V
IN
= 200 mV
V
IN
= 2 V
vs. temperature
VS = ±3 V
CS high
CS low
V
IN
= 7 mV to 7 V rms, 0 dBV
AD637K/AD637B
Min
Typ
Max
V
OUT
=
avg
(V
IN
)
2
30
100
±0.25 ± 0.05
±0.5 ± 0.2
±2.0 ± 0.3
150
300
0.1
0.02
0.05
Specified accuracy
±0.1
±1.0
25
0 to 7
0 to 4
6.4
8
11
66
200
150
1
8
0 to 12.0
0 to 2
6
±0.04
13.5
2.2
20
0.5
100
±0.3
−3
+0.33
−0.033
5
20
1
±15
±6
9.6
±0.2
±0.5
±0.056
80
100
Unit
mV rms ±% of reading
mV ± % of reading
μV/V
μV/V
% of reading
% of FSR
% of FSR
mV ± % of reading
CF, %
% of reading
% of reading
ms/μF C
AV
V rms
V p-p
V rms
V p-p
kΩ
mV
kHz
kHz
kHz
kHz
MHz
MHz
mV
mV/°C
V
V
mA
mA
Ω
kΩ
dBV
mV/dB
% of reading/°C
dB/°C
μA
μA
Rev. L | Page 6 of 25
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