AD820
VS = ±5 V @ TA = 25°C, VCM = 0 V, VOUT = 0 V, unless otherwise noted.
Table 2.
AD820A
Typ
AD820B
Typ
Parameter
Conditions
Min
Max
Min
Max
Unit
DC PERFORMANCE
Initial Offset
Maximum Offset over Temperature
Offset Drift
Input Bias Current
at TMAX
Input Offset Current
at TMAX
0.1
0.5
2
2
0.5
2
0.8
1.5
0.3
0.5
2
2
0.5
2
0.4
1
mV
mV
μV/°C
pA
nA
pA
VCM = –5 V to 4 V
25
5
20
10
2.5
10
0.5
0.5
nA
Open-Loop Gain
VOUT = 4 V to –4 V
RL = 100 kΩ
400
400
80
80
20
1000
150
30
400
400
80
80
20
1000
150
30
V/mV
V/mV
V/mV
V/mV
V/mV
V/mV
TMIN to TMAX
TMIN to TMAX
RL = 10 kΩ
RL = 1 kΩ
TMIN to TMAX
NOISE/HARMONIC PERFORMANCE
Input Voltage Noise
0.1 Hz to 10 Hz
f = 10 Hz
10
10
2
2
μV p-p
nV/√Hz
nV/√Hz
nV/√Hz
nV/√Hz
25
21
16
13
25
21
16
13
f = 100 Hz
f = 1 kHz
f = 10 kHz
Input Current Noise
0.1 Hz to 10 Hz
f = 1 kHz
18
0.8
18
0.8
fA p-p
fA/√Hz
Harmonic Distortion
f = 10 kHz
RL = 10 kΩ
VOUT
=
4.5 V
−93
−93
dB
DYNAMIC PERFORMANCE
Unity Gain Frequency
Full Power Response
Slew Rate
1.9
105
3
1.8
105
3
MHz
kHz
V/μs
VOUT p-p = 9 V
Settling Time
to 0.1%
to 0.01%
VOUT = 0 V to 4.5 V
1.4
1.8
1.4
1.8
μs
μs
INPUT CHARACTERISTICS
Common-Mode Voltage Range1
TMIN to TMAX
CMRR
TMIN to TMAX
−5.2
−5.2
66
+4
+4
−5.2
−5.2
72
+4
+4
V
V
dB
dB
VCM = −5 V to +2 V
80
80
66
66
Input Impedance
Differential
1013||0.5
1013||2.8
1013||0.5
1013||2.8
Ω||pF
Ω||pF
Common Mode
Rev. E | Page 5 of 24
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