AD8221 查看數據表（PDF） - Analog Devices
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AD8221 Datasheet PDF : 24 Pages
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SPECIFICATIONS
VS = ±15 V, VREF = 0 V, TA = 25°C, G = 1, RL = 2 kΩ, unless otherwise noted.
Table 1.
Parameter
Conditions
Min
COMMON-MODE REJECTION RATIO
CMRR DC to 60 Hz with 1 kΩ
Source Imbalance
VCM = −10 V to +10 V
G=1
80
G = 10
100
G = 100
120
G = 1000
130
CMRR at 10 kHz
VCM = −10 V to +10 V
G=1
80
G = 10
90
G = 100
100
G = 1000
100
NOISE
RTI noise =
√eNI2 + (eNO/G)2
Voltage Noise, 1 kHz
Input Voltage Noise, eNI
VIN+, VIN−, VREF = 0
Output Voltage Noise, eNO
RTI
f = 0.1 Hz to 10 Hz
G=1
G = 10
G = 100 to 1000
Current Noise
f = 1 kHz
f = 0.1 Hz to 10 Hz
VOLTAGE OFFSET1
Input Offset, VOSI
VS = ±5 V to ±15 V
Over Temperature
T = −40°C to +85°C
Average TC
Output Offset, VOSO
VS = ±5 V to ±15 V
Over Temperature
T = −40°C to +85°C
Average TC
Offset RTI vs. Supply (PSR)
VS = ±2.3 V to ±18 V
G=1
90
G = 10
110
G = 100
124
G = 1000
130
INPUT CURRENT
Input Bias Current
Over Temperature
T = −40°C to +85°C
Average TC
Input Offset Current
Over Temperature
T = −40°C to +85°C
Average TC
REFERENCE INPUT
RIN
IIN
VIN+, VIN−, VREF = 0
Voltage Range
–VS
Gain to Output
AR Grade
Typ Max
8
75
2
0.5
0.25
40
6
60
86
0.4
300
0.66
6
110
120
130
140
0.5
1.5
2.0
1
0.2
0.6
0.8
1
20
50
60
+VS
1 ± 0.0001
Rev. C | Page 3 of 24
AD8221
BR Grade
Min
Typ Max
Unit
90
dB
110
dB
130
dB
140
dB
80
dB
100
dB
110
dB
110
dB
8
75
2
0.5
0.25
40
6
25
45
0.3
200
0.45
5
94
110
114
130
130
140
140
150
0.2
0.4
1
1
0.1
0.4
0.6
1
20
50
60
–VS
+VS
1 ± 0.0001
nV/√Hz
nV/√Hz
µV p-p
µV p-p
µV p-p
fA/√Hz
pA p-p
µV
µV
µV/°C
µV
mV
µV/°C
dB
dB
dB
dB
nA
nA
pA/°C
nA
nA
pA/°C
kΩ
µA
V
V/V
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