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AD637JRZ-R7 数据表(PDF) 3 Page - Analog Devices

部件名 AD637JRZ-R7
功能描述  High Precision, Wideband RMS-to-DC Converter
PDF  20 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD637JRZ-R7 数据表(HTML) 3 Page - Analog Devices

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AD637
Rev. K | Page 3 of 20
SPECIFICATIONS
At 25°C and ±15 V dc, unless otherwise noted.1
Table 1.
AD637J/AD637A
AD637K/AD637B
AD637S
Parameter
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Unit
TRANSFER FUNCTION
VOUT =
2
IN )
(V
avg ×
VOUT =
2
IN )
(V
avg ×
VOUT =
2
IN )
(V
avg ×
CONVERSION ACCURACY
Total Error, Internal Trim2
(
Figure 5)
±1 ± 0.5
±0.5 ± 0.2
±1 ± 0.5
mV ±% of
reading
TMIN to TMAX
±3.0 ± 0.6
±2.0 ± 0.3
±6 ± 0.7
mV ± % of
reading
vs. Supply
+VIN = 300 mV
30
150
30
150
30
150
μV/V
vs. Supply
−VIN = −300 mV
100
300
100
300
100
300
μV/V
DC Reversal
Error at 2 V
0.25
0.1
0.25
% of
reading
Nonlinearity 2 V Full Scale3
0.04
0.02
0.04
% of FSR
Nonlinearity 7 V Full Scale
0.05
0.05
0.05
% of FSR
Total Error, External Trim
±0.5 ± 0.1
±0.25 ± 0.05
±0.5 ± 0.1
mV ± % of
reading
ERROR VS. CREST FACTOR4
Crest Factor 1 to 2
Specified accuracy
Specified accuracy
Specified accuracy
Crest Factor = 3
±0.1
±0.1
±0.1
% of
reading
Crest Factor = 10
±1.0
±1.0
±1.0
% of
reading
AVERAGING TIME CONSTANT
25
25
25
ms/μF CAV
INPUT CHARACTERISTICS
Signal Range, ±15 V Supply
Continuous RMS Level
0 to 7
0 to 7
0 to 7
V rms
Peak Transient Input
±15
±15
±15
V p-p
Signal Range, ±5 V Supply
Continuous RMS Level
0 to 4
0 to 4
0 to 4
V rms
Peak Transient Input
±6
±6
±6
V p-p
Maximum Continuous
Nondestructive
Input Level
(All Supply Voltages)
±15
±15
±15
V p-p
Input Resistance
6.4
8
9.6
6.4
8
9.6
6.4
8
9.6
kΩ
Input Offset Voltage
±0.5
±0.2
±0.5
mV
FREQUENCY RESPONSE5
Bandwidth for 1%
Additional Error
(0.09 dB)
VIN = 20 mV
11
11
11
kHz
VIN = 200 mV
66
66
66
kHz
VIN = 2 V
200
200
200
kHz
±3 dB Bandwidth
VIN = 20 mV
150
150
150
kHz
VIN = 200 mV
1
1
1
MHz
VIN = 2 V
8
8
8
MHz



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