AD637
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
V OUT =
avg × (V IN ) 2
V OUT =
avg × (V IN ) 2
V OUT =
avg × (V IN ) 2
CONVERSION ACCURACY
Total Error, Internal Trim 2
±1 ± 0.5
±0.5 ± 0.2
±1 ± 0.5
mV ±% of
reading
T MIN to T MAX
±3.0 ± 0.6
±2.0 ± 0.3
±6 ± 0.7
mV ± % of
reading
vs. Supply
30
150
30
150
30
150
μV/V
+V IN = 300 mV
vs. Supply
100
300
100
300
100
300
μV/V
?V IN = ?300 mV
DC Reversal
0.25
0.1
0.25
% of
Error at 2 V
reading
Nonlinearity 2 V Full Scale 3
Nonlinearity 7 V Full Scale
Total Error, External Trim
±0.5 ± 0.1
0.04
0.05
±0.25 ± 0.05
0.02
0.05
±0.5 ± 0.1
0.04
0.05
% of FSR
% of FSR
mV ± % of
reading
ERROR VS. CREST FACTOR 4
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 C AV
INPUT CHARACTERISTICS
Signal Range, ±15 V Supply
Continuous RMS Level
Peak Transient Input
0 to 7
±15
0 to 7
±15
0 to 7
±15
V rms
V p-p
Signal Range, ±5 V Supply
Continuous RMS Level
Peak Transient Input
Maximum Continuous
0 to 4
±6
±15
0 to 4
±6
±15
0 to 4
±6
±15
V rms
V p-p
V p-p
Nondestructive
Input Level
(All Supply Voltages)
Input Resistance
6.4
8
9.6
6.4
8
9.6
6.4
8
9.6
Input Offset Voltage
±0.5
±0.2
±0.5
mV
FREQUENCY RESPONSE 5
Bandwidth for 1%
Additional Error
(0.09 dB)
V IN = 20 mV
V IN = 200 mV
V IN = 2 V
11
66
200
11
66
200
11
66
200
kHz
kHz
kHz
±3 dB Bandwidth
V IN = 20 mV
V IN = 200 mV
V IN = 2 V
150
1
8
150
1
8
150
1
8
kHz
MHz
MHz
Rev. K | Page 3 of 20
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