AD8426 데이터 시트보기 (PDF) - Analog Devices
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AD8426 Datasheet PDF : 28 Pages
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AD8426
SINGLE-SUPPLY OPERATION
+VS = 2.7 V, −VS = 0 V, VREF = 0 V, TA = 25°C, G = 1, RL = 10 kΩ, specifications referred to input, unless otherwise noted.
Table 5.
Parameter
Test Conditions/
Comments
A Grade
Min
Typ Max
B Grade
Min
Typ Max
COMMON-MODE REJECTION
RATIO (CMRR)
VCM = 0 V to 1.7 V
CMRR, DC to 60 Hz
G=1
80
90
G = 10
100
105
G = 100
105
110
G = 1000
105
110
CMRR at 5 kHz
G=1
80
80
G = 10
90
90
G = 100
90
90
G = 1000
100
100
NOISE
Total noise:
eN = √(eNI2 + (eNO/G)2)
Voltage Noise
f = 1 kHz
Input Voltage Noise, eNI
24
27
24
27
Output Voltage Noise, eNO
120 125
120 125
RTI Noise
f = 0.1 Hz to 10 Hz
G=1
2
2
G = 10
0.5
0.5
G = 100 to 1000
0.4
0.4
Current Noise
f = 1 kHz
100
100
f = 0.1 Hz to 10 Hz
3
3
VOLTAGE OFFSET
Total offset voltage:
VOS = VOSI + (VOSO/G)
Input Offset, VOSI
300
150
Average Temperature
Coefficient
TA = −40°C to +125°C
0.5
3
0.5
1.5
Output Offset, VOSO
1000
500
Average Temperature
Coefficient
TA = −40°C to +125°C
2
12
1
8
Offset RTI vs. Supply (PSR) VS = 2.7 V to 36 V
G=1
80
90
G = 10
100
105
G = 100
105
110
G = 1000
105
110
INPUT CURRENT
Input Bias Current1
TA = +25°C
5
20
30
5
20
30
TA = +125°C
5
15
28
5
15
28
TA = −40°C
5
30
38
5
30
38
Average Temperature
TA = −40°C to +125°C
70
70
Coefficient
Input Offset Current
TA = +25°C
2
1
TA = +125°C
2
1
TA = −40°C
3
1
Average Temperature
TA = −40°C to +125°C
5
5
Coefficient
Unit
dB
dB
dB
dB
dB
dB
dB
dB
nV/√Hz
nV/√Hz
μV p-p
μV p-p
μV p-p
fA/√Hz
pA p-p
μV
μV/°C
μV
μV/°C
dB
dB
dB
dB
nA
nA
nA
pA/°C
nA
nA
nA
pA/°C
Rev. 0 | Page 6 of 28
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