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AD636 Datasheet(PDF) 2 Page - Analog Devices

Part # AD636
Description  Low Level, True RMS-to-DC Converter
PDF  8 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD636 Datasheet(HTML) 2 Page - Analog Devices

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AD636–SPECIFICATIONS (@ +25 C, and +V
S = +3 V, –VS = –5 V, unless otherwise noted)
REV. B
–2–
Model
AD636J
AD636K
Min
Typ
Max
Min
Typ
Max
Units
TRANSFER FUNCTION
V
OUT =
avg. ( V
IN )
2
V
OUT =
avg. ( V
IN )
2
CONVERSION ACCURACY
Total Error, Internal Trim
1, 2
0.5
1.0
0.2
0.5
mV
± % of Reading
vs. Temperature, 0
°C to +70°C
± 0.1 ± 0.01
± 0.1 ± 0.005
mV
± % of Reading/°C
vs. Supply Voltage
± 0.1 ± 0.01
± 0.1 ± 0.01
mV
± % of Reading/V
dc Reversal Error at 200 mV
± 0.2
± 0.1
% of Reading
Total Error, External Trim
1
± 0.3 ± 0.3
± 0.1 ± 0.2
mV
± % of Reading
ERROR VS. CREST FACTOR
3
Crest Factor 1 to 2
Specified Accuracy
Specified Accuracy
Crest Factor = 3
–0.2
–0.2
% of Reading
Crest Factor = 6
–0.5
–0.5
% of Reading
AVERAGING TIME CONSTANT
25
25
ms/
µF CAV
INPUT CHARACTERISTICS
Signal Range, All Supplies
Continuous rms Level
0 to 200
0 to 200
mV rms
Peak Transient Inputs
+3 V, –5 V Supply
± 2.8
± 2.8
V pk
± 2.5 V Supply
± 2.0
± 2.0
V pk
± 5 V Supply
± 5.0
± 5.0
V pk
Maximum Continuous Nondestructive
Input Level (All Supply Voltages)
± 12
± 12
V pk
Input Resistance
5.33
6.67
8
5.33
6.67
8
k
Ω
Input Offset Voltage
± 0.5
± 0.2
mV
FREQUENCY RESPONSE
2, 4
Bandwidth for 1% Additional Error (0.09 dB)
VIN = 10 mV
14
14
kHz
VIN = 100 mV
90
90
kHz
VIN = 200 mV
130
130
kHz
± 3 dB Bandwidth
VIN = 10 mV
100
100
kHz
VIN = 100 mV
900
900
kHz
VIN = 200 mV
1.5
1.5
MHz
OUTPUT CHARACTERISTICS
2
Offset Voltage, VIN = COM
0.5
0.2
mV
vs. Temperature
± 10
± 10
µV/°C
vs. Supply
± 0.1
± 0.1
mV/ V
Voltage Swing
+3 V, –5 V Supply
0.3
0 to +1.0
0.3
0 to +1.0
V
± 5 V to ± 16.5 V Supply
0.3
0 to +1.0
0.3
0 to +1.0
V
Output Impedance
8
10
12
8
10
12
k
Ω
dB OUTPUT
Error, VIN = 7 mV to 300 mV rms
± 0.3
0.5
± 0.1
0.2
dB
Scale Factor
–3.0
–3.0
mV/dB
Scale Factor Temperature Coefficient
+0.33
+0.33
% of Reading/
°C
–0.033
–0.033
dB/
°C
IREF for 0 dB = 0.1 V rms
248
2
4
8
µA
IREF Range
1
50
1
50
µA
IOUT TERMINAL
IOUT Scale Factor
100
100
µA/V rms
IOUT Scale Factor Tolerance
–20
± 10
+20
–20
± 10
+20
%
Output Resistance
8
10
12
8
10
12
k
Ω
Voltage Compliance
–VS to (+VS
–VS to (+VS
–2 V)
–2 V)
V
BUFFER AMPLIFIER
Input and Output Voltage Range
–VS to (+VS
–VS to (+VS
–2 V)
–2 V)
V
Input Offset Voltage, RS = 10k
± 0.8
2
± 0.5
1
mV
Input Bias Current
100
300
100
300
nA
Input Resistance
10
8
10
8
Ω
Output Current
(+5 mA,
(+5 mA,
–130
µA)
–130
µA)
Short Circuit Current
20
20
mA
Small Signal Bandwidth
l
l
MHz
Slew Rate
5
55
V/
µs
POWER SUPPLY
Voltage, Rated Performance
+3, –5
+3, –5
V
Dual Supply
+2, –2.5
± 16.5
+2, –2.5
± 16.5
V
Single Supply
+5
+24
+5
+24
V
Quiescent Current
6
0.80
1.00
0.80
1.00
mA



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