AD637A Просмотр технического описания (PDF) - Analog Devices
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AD637A Datasheet PDF : 10 Pages
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AD637–SPECIFICATIONS (@ +25؇C, and ؎15 V dc unless otherwise noted)
Model
AD637J/A
Min
Typ
Max
AD637K/B
Min
Typ
Max
AD637S
Min
Typ Max
Units
TRANSFER FUNCTION
VOUT = avg . (VIN ) 2
CONVERSION ACCURACY
Total Error, Internal Trim1 (Fig. 2)
TMIN to TMAX
vs. Supply, + VIN = +300 mV
vs. Supply, – VIN = –300 mV
DC Reversal Error at 2 V
Nonlinearity 2 V Full Scale2
Nonlinearity 7 V Full Scale
Total Error, External Trim
؎1 ؎ 0.5
؎3.0 ؎ 0.6
30
150
100
300
0.25
0.04
0.05
±0.5 ± 0.1
ERROR VS. CREST FACTOR3
Crest Factor 1 to 2
Crest Factor = 3
Crest Factor = 10
Specified Accuracy
± 0.1
± 1.0
AVERAGING TIME CONSTANT
25
INPUT CHARACTERISTICS
Signal Range, ±15 V Supply
Continuous RMS Level
Peak Transient Input
Signal Range, ±5 V Supply
Continuous rms Level
Peak Transient Input
Maximum Continuous Nondestructive
Input Level (All Supply Voltages)
Input Resistance
6.4
Input Offset Voltage
FREQUENCY RESPONSE4
Bandwidth for 1% Additional Error (0.09 dB)
VIN = 20 mV
VIN = 200 mV
VIN = 2 V
±3 dB Bandwidth
VIN = 20 mV
VIN = 200 mV
VIN = 2 V
0 to 7
± 15
0 to 4
±6
± 15
8
9.6
± 0.5
11
66
200
150
1
8
OUTPUT CHARACTERISTICS
Offset Voltage
vs. Temperature
Voltage Swing, ±15 V Supply,
2 kΩ Load
Voltage Swing, ±3 V Supply,
2 kΩ Load
Output Current
Short Circuit Current
Resistance, Chip Select “High”
Resistance, Chip Select “Low”
± 0.05
0 to +12.0 +13.5
0 to +2 +2.2
6
20
0.5
100
؎1
؎0.089
dB OUTPUT
Error, VIN 7 mV to 7 V rms, 0 dB = 1 V rms
Scale Factor
Scale Factor Temperature Coefficient
IREF for 0 dB = 1 V rms
5
IREF Range
1
± 0.5
–3
+0.33
–0.033
20
80
100
BUFFER AMPLIFIER
Input Output Voltage Range
Input Offset Voltage
Input Current
Input Resistance
Output Current
Short Circuit Current
Small Signal Bandwidth
Slew Rate5
–VS to (+VS
– 2.5 V)
± 0.8
؎2
±2
؎10
108
(+5 mA,
–130 µA)
20
1
5
DENOMINATOR INPUT
Input Range
Input Resistance
Offset Voltage
0 to +10
20
25
30
± 0.2
± 0.5
CHIP SELECT PROVISION (CS)
RMS “ON” Level
RMS “OFF” Level
IOUT of Chip Select
CS “LOW”
CS “HIGH”
On Time Constant
Off Time Constant
POWER SUPPLY
Operating Voltage Range
Quiescent Current
Standby Current
Open or +2.4 V < VC < +VS
VC < +0.2 V
10
Zero
10 µs + ((25 kΩ) × CAV)
10 µs + ((25 kΩ) × CAV)
؎3.0
؎18
2.2
3
350
450
TRANSISTOR COUNT
107
VOUT = avg . (VIN ) 2
؎0.5 ؎ 0.2
؎2.0 ؎ 0.3
30
150
100
300
0.1
0.02
0.05
± 0.25 ± 0.05
Specified Accuracy
± 0.1
± 1.0
25
0 to 7
± 15
0 to 4
±6
6.4
8
± 15
9.6
± 0.2
11
66
200
150
1
8
± 0.04
0 to +12.0 +13.5
0 to +2 +2.2
6
20
0.5
100
؎0.5
؎0.056
± 0.3
–3
+0.33
–0.033
5
20
80
1
100
–VS to (+VS
– 2.5 V)
± 0.5
؎1
±2
؎5
108
(+5 mA,
–130 µA)
20
1
5
0 to +10
20
25
30
± 0.2
± 0.5
Open or +2.4 V < VC < +VS
VC < +0.2 V
10
Zero
10 µs + ((25 kΩ) × CAV)
10 µs + ((25 kΩ) × CAV)
؎3.0
؎18
2.2
3
350
450
107
VOUT = avg . (VIN ) 2
؎1 ؎ 0.5
؎6 ؎ 0.7
30
150
100 300
0.25
0.04
0.05
± 0.5 ± 0.1
mV ± % of Reading
mV ± % of Reading
µV/V
µV/V
% of Reading
% of FSR
% of FSR
mV ± % of Reading
Specified Accuracy
± 0.1
± 1.0
25
% of Reading
% of Reading
ms/µF CAV
0 to 7
± 15
V rms
V p-p
0 to 4
±6
V rms
V p-p
± 15
V p-p
6.4
8
9.6
kΩ
± 0.5
mV
11
66
200
150
1
8
؎1
± 0.04 ؎0.07
0 to +12.0 +13.5
0 to +2 +2.2
6
20
0.5
100
± 0.5
–3
+0.33
–0.033
5
20
80
1
100
–VS to (+VS
– 2.5 V)
± 0.8 ؎2
±2
؎10
108
(+5 mA,
–130 µA)
20
1
5
0 to +10
20
25
30
± 0.2 ± 0.5
Open or +2.4 V < VC < +VS
VC < +0.2 V
10
Zero
10 µs + ((25 kΩ) × CAV)
10 µs + ((25 kΩ) × CAV)
؎3.0
؎18
2.2
3
350 450
107
kHz
kHz
kHz
kHz
MHz
MHz
mV
mV/°C
V
V
mA
mA
Ω
kΩ
dB
mV/dB
% of Reading/°C
dB/°C
µA
µA
V
mV
nA
Ω
mA
MHz
V/µs
V
kΩ
mV
µA
V
mA
µA
–2–
REV. E
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