AD420(1999) 查看數據表（PDF） - Analog Devices
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AD420 Datasheet PDF : 11 Pages
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AD420–SPECIFICATIONS (TA = TMIN–TMAX, VCC = +24 V, unless otherwise noted)
AX-32 Version1
Parameter
Min
Typ
Max
Units
Comments
RESOLUTION
16
Bits
IOUT CHARACTERISTICS
Operating Current Ranges
4
0
0
Current Loop Voltage Compliance
0
Settling Time (to 0.1% of FS)2
Output Impedance (Current Mode)
Accuracy3
Monotonicity
16
Integral Nonlinearity
Offset (0 mA or 4 mA) (TA = +25°C)
Offset Drift
Total Output Error (20 mA or 24 mA) (TA = +25°C)
Total Output Error Drift
PSRR4
2.5
25
± 0.002
20
20
5
20
20
24
VCC – 2.5 V
3
± 0.012
± 0.05
50
± 0.15
50
10
mA
mA
mA
V
ms
MΩ
Bits
%
%
ppm/°C
%
ppm/°C
µA/V
RL = 500 Ω
VOUT CHARACTERISTICS
FS Output Voltage Range (Pin 17)
0
5
V
VOLTAGE REFERENCE
REF OUT
Output Voltage (TA = +25°C)
Drift
Externally Available Current
Short Circuit Current
REF IN
Resistance
VLL
Output Voltage
Externally Available Current
Short Circuit Current
4.995
5.0
5.005
± 25
5
7
30
4.5
5
20
V
ppm/°C
mA
mA
kΩ
V
mA
mA
DIGITAL INPUTS
VIH (Logic 1)
VIL (Logic 0)
IIH (VIN = 5.0 V)
IIL (VIN = 0 V)
Data Input Rate (“3-Wire” Mode)
Data Input Rate (“Asynchronous” Mode)
2.4
No Minimum
No Minimum
V
0.8
V
± 10
µA
± 10
µA
3.3
MBPS
150
kBPS
DIGITAL OUTPUTS
FAULT DEFECT
VOH (10 kΩ Pull-Up Resistor to VLL)
VOL (10 kΩ Pull-Up Resistor to VLL)
VOL @ 2.5 mA
DATA OUT
VOH (IOH = –0.8 mA)
VOL (IOL = 1.6 mA)
POWER SUPPLY
Operating Range VCC
Quiescent Current
Quiescent Current (External VLL)
TEMPERATURE RANGE
Specified Performance
3.6
4.5
V
0.2
0.4
V
0.6
V
3.6
4.3
V
0.3
0.4
V
12
32
V
4.2
5.5
mA
3
mA
–40
+85
°C
NOTES
1X refers to package designator, R or N.
2External capacitor selection must be as described in Figure 5.
3Total Output Error includes Offset and Gain Error. Total Output Error and Offset Error are with respect to the Full-Scale Output and are measured with an ideal
+5 V reference. If the internal reference is used, the reference errors must be added to the Offset and Total Output Errors.
4PSRR is measured by varying VCC from 12 V to its maximum 32 V.
Specifications subject to change without notice.
–2–
REV. F
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