AD637B AD [Analog Devices], AD637B Datasheet - Page 2

• Manufacturer Part Number: AD637B
• Description: High Precision, Wide-Band RMS-to-DC Converter
• Manufacturer: AD [Analog Devices]

AD637–SPECIFICATIONS
Model
TRANSFER FUNCTION
CONVERSION ACCURACY
ERROR VS. CREST FACTOR
AVERAGING TIME CONSTANT
INPUT CHARACTERISTICS
FREQUENCY RESPONSE
OUTPUT CHARACTERISTICS
dB OUTPUT
BUFFER AMPLIFIER
DENOMINATOR INPUT
CHIP SELECT PROVISION (CS)
POWER SUPPLY
TRANSISTOR COUNT
Total Error, Internal Trim
Nonlinearity 2 V Full Scale
Nonlinearity 7 V Full Scale
Total Error, External Trim
Crest Factor 1 to 2
Crest Factor = 3
Crest Factor = 10
Signal Range, 15 V Supply
Signal Range, 5 V Supply
Maximum Continuous Nondestructive
Input Resistance
Input Offset Voltage
Bandwidth for 1% Additional Error (0.09 dB)
Offset Voltage
Voltage Swing, 15 V Supply,
Voltage Swing, 3 V Supply,
Output Current
Short Circuit Current
Resistance, Chip Select “High”
Resistance, Chip Select “Low”
Error, V
Scale Factor
Scale Factor Temperature Coefficient
I
I
Input Output Voltage Range
Input Offset Voltage
Input Current
Input Resistance
Output Current
Short Circuit Current
Small Signal Bandwidth
Slew Rate
Input Range
Input Resistance
Offset Voltage
RMS “ON” Level
RMS “OFF” Level
I
On Time Constant
Off Time Constant
Operating Voltage Range
Quiescent Current
Standby Current
REF
REF
OUT
3 dB Bandwidth
T
vs. Supply, + V
vs. Supply, – V
DC Reversal Error at 2 V
Continuous RMS Level
Peak Transient Input
Continuous rms Level
Peak Transient Input
Input Level (All Supply Voltages)
V
V
V
V
V
V
vs. Temperature
2 k Load
2 k Load
CS “LOW”
CS “HIGH”
IN
IN
IN
IN
IN
IN
MIN
for 0 dB = 1 V rms
Range
of Chip Select
= 20 mV
= 200 mV
= 2 V
= 20 mV
= 200 mV
= 2 V
IN
to T
5
7 mV to 7 V rms, 0 dB = 1 V rms
MAX
IN
IN
= –300 mV
= +300 mV
4
1
2
(Fig. 2)
3
Min
0 to +12.0 +13.5
0 to +2
6
5
1
–V
– 2.5 V)
(+5 mA,
–130 A)
20
Open or +2.4 V < V
V
10
Zero
10 s + ((25 k )
10 s + ((25 k )
6.4
C
3.0
S
< +0.2 V
V
to (+V
Specified Accuracy
OUT
AD637J/A
S
Typ
30
100
25
0 to 7
0 to 4
8
11
66
200
150
1
8
+2.2
20
0.5
100
–3
+0.33
–0.033
20
10
20
1
5
0 to +10
25
2.2
350
107
avg . (V
0.5
0.1
1.0
0.05
0.5
0.8
2
0.2
8
C
C
C
IN
0.1
AV
AV
< +V
)
)
)
2
Max
150
300
0.25
0.04
0.05
80
100
30
3
450
9.6
(@ +25 C, and
15
6
15
0.5
0.5
1
3.0
1
0.089
2
10
18
S
0.5
0.6
Min
6.4
0 to +12.0 +13.5
0 to +2
6
5
1
–V
– 2.5 V)
(+5 mA,
–130 A)
20
Open or +2.4 V < V
V
10
Zero
10 s + ((25 k )
10 s + ((25 k )
C
3.0
S
< +0.2 V
V
to (+V
–2–
Specified Accuracy
OUT
15 V dc unless otherwise noted)
AD637K/B
S
Typ
30
100
25
0 to 7
0 to 4
8
11
66
200
150
1
8
+2.2
20
0.5
100
–3
+0.33
–0.033
20
10
20
1
5
0 to +10
25
2.2
350
107
avg . (V
0.25
0.1
1.0
0.04
0.3
0.5
2
0.2
8
C
C
IN
C
AV
AV
0.05
< +V
)
)
)
2
Max
150
300
0.1
0.02
0.05
80
30
3
450
9.6
100
15
6
15
0.2
0.5
S
0.5
2.0
0.5
0.056
1
5
18
0.2
0.3
Min
6.4
0 to +12.0 +13.5
0 to +2
6
5
1
–V
– 2.5 V)
(+5 mA,
–130 A)
20
Open or +2.4 V < V
V
10
Zero
10 s + ((25 k )
10 s + ((25 k )
C
3.0
V
S
< +0.2 V
OUT
Specified Accuracy
to (+V
AD637S
S
avg . (V
Typ
30
100
25
0 to 7
0 to 4
8
11
66
200
150
1
8
+2.2
20
0.5
100
–3
+0.33
–0.033
20
10
20
1
5
0 to +10
25
2.2
350
107
0.5
0.1
1.0
0.04
0.5
0.8
2
0.2
8
IN
C
C
0.1
C
)
AV
AV
2
< +V
Max
150
300
0.25
0.04
0.05
9.6
80
100
30
3
450
)
)
15
6
15
0.5
0.5
1
6
1
0.07
2
10
18
S
0.5
0.7
Units
mV
mV
% of Reading
% of FSR
% of FSR
mV
% of Reading
% of Reading
ms/ F C
V rms
V p-p
V rms
V p-p
V p-p
k
mV
kHz
kHz
kHz
kHz
MHz
MHz
mV
mV/ C
V
V
mA
mA
k
dB
mV/dB
% of Reading/ C
dB/ C
V
mV
nA
mA
MHz
V/ s
V
k
mV
V
mA
V/V
V/V
A
A
A
A
% of Reading
% of Reading
% of Reading
AV
REV. E