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AD8231 Scheda tecnica(PDF) 2 Page - Analog Devices

Il numero della parte AD8231
Spiegazioni elettronici  Zero Drift, Digital Programmable Instrumentation Amplifier
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Produttore elettronici  AD [Analog Devices]
Homepage  http://www.analog.com
Logo AD - Analog Devices

AD8231 Scheda tecnica(HTML) 2 Page - Analog Devices

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AD8231
Preliminary Data Sheet
Rev. PrC | Page 2 of 8
SPECIFICATIONS
Table 1. VS = 5 V, VREF = 2.5 V, G=1, RL = 10 kΩ, -40°C ≤TA ≤ +125°C unless otherwise noted).
Parameter
Conditions
Min
Typ
Max
Unit
INSTRUMENTATION AMPLIFIER
OFFSET VOLTAGE
VOS RTI = VOSI + VOSO/G
Input Offset, VOSI
5
25
μV
Average Temperature Drift
0.01
0.05
μV/°C
Output Offset, VOSO
15
50
μV
Average Temperature Drift
0.02
0.1
μV/°C
INPUT CURRENTS
Input Bias Current
TA = 25°C
200
400
pA
1
nA
Input Offset Current
TA = 25°C
50
100
pA
0.5
nA
GAINS
1, 2, 4, 8, 16, 32, 64, 128
Gain Error
G = 1
0.1
0.3
%
G = 2 to 128
1
TBD
%
Gain Drift
G = 1
2
10
ppm/°C
G = 2 to 128
2
10
ppm/°C
Gain Nonlinearity
VOUT = 0.1 to 4.9V
G= 1
5
ppm
G= 8
TBD
ppm
G= 128
TBD
ppm
CMRR
G=1
80
100
dB
G=2
86
106
dB
G=4
92
112
dB
G=8
98
118
dB
G=16
104
124
dB
G=32
110
130
dB
G=64
116
136
dB
G=128
122
142
dB
NOISE
Noise RTI = sqrt(eni2 + (eno/G)2
VIN+, VIN− =2.5V ; TA = 25°C
Input Voltage Noise, eni
f = 1 kHz,
32
nV/√Hz
f = 0.1 Hz to 10 Hz
0.7
μV p-p
f = 0.01 Hz to 1 Hz
0.2
μV p-p
Output Voltage Noise, eno
f = 1 kHz
60
nV/√Hz
f = 0.1 Hz to 10 Hz
1
μV p-p
f = 0.01 Hz to 1 Hz
0.5
μV p-p
OTHER INPUT CHARACTERISTICS
Differential Input Impedance
Common Mode
10||5
GΩ||pF
Common Mode Input Impedance
Differential
10||5
GΩ||pF
Power Supply Rejection Ratio
100
110
dB
Input Operating Voltage Range
0.05
4.95
V
REFERENCE INPUT
Input Impedance
10||10
GΩ||pF
Voltage Range
0.05
4.95
V


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