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AD820 View Datasheet(PDF) - Analog Devices

Part NameAD820 ADI
Analog Devices ADI
DescriptionSingle-Supply, Rail-to-Rail, Low Power, FET Input Op Amp
AD820 Datasheet PDF : 24 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
AD820
SPECIFICATIONS
VS = 0 V, 5 V @ TA = 25°C, VCM = 0 V, VOUT = 0.2 V, unless otherwise noted.
Table 1.
AD820A
AD820B
Parameter
Conditions
Min Typ
Max
Min
Typ
Max
Unit
DC PERFORMANCE
Initial Offset
0.1
0.8
0.1
0.4
mV
Maximum Offset over Temperature
0.5
1.2
0.5
0.9
mV
Offset Drift
2
2
μV/°C
Input Bias Current
At TMAX
Input Offset Current
VCM = 0 V to 4 V
2
25
0.5
5
2
20
2
10
pA
0.5
2.5
nA
2
10
pA
At TMAX
Open-Loop Gain
TMIN to TMAX
TMIN to TMAX
TMIN to TMAX
NOISE/HARMONIC PERFORMANCE
VOUT = 0.2 V to 4 V
RL = 100 kΩ
RL = 10 kΩ
RL = 1 kΩ
0.5
400
1000
400
80
150
80
15
30
10
0.5
500
1000
400
80
150
80
15
30
10
nA
V/mV
V/mV
V/mV
V/mV
V/mV
V/mV
Input Voltage Noise
f = 0.1 Hz to 10 Hz
2
2
μV p-p
f = 10 Hz
25
25
nV/√Hz
f = 100 Hz
21
21
nV/√Hz
f = 1 kHz
16
16
nV/√Hz
f = 10 kHz
13
13
nV/√Hz
Input Current Noise
f = 0.1 Hz to 10 Hz
18
18
fA p-p
f = 1 kHz
0.8
0.8
fA/√Hz
Harmonic Distortion
f = 10 kHz
DYNAMIC PERFORMANCE
RL = 10 kΩ to 2.5 V
VOUT = 0.25 V to 4.75 V
−93
−93
dB
Unity Gain Frequency
1.8
1.8
MHz
Full Power Response
VOUT p-p = 4.5 V
210
Slew Rate
3
210
kHz
3
V/μs
Settling Time
To 0.1%
VOUT = 0.2 V to 4.5 V
1.4
1.4
μs
To 0.01%
1.8
1.8
μs
INPUT CHARACTERISTICS
Common-Mode Voltage Range1
TMIN to TMAX
CMRR
TMIN to TMAX
Input Impedance
Differential
Common Mode
VCM = 0 V to 2 V
−0.2
+4
66
80
66
1013||0.5
1013||2.8
–0.2
+4
72
80
66
1013||0.5
1013||2.8
V
dB
dB
Ω||pF
Ω||pF
Rev. H | Page 3 of 24
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