REV. D
–2–
AD844–SPECIFICATIONS
AD844J/A
Typ
50
75
1
AD844B
Min
AD844S
Max
Min
150
200
5
Model
INPUT OFFSET VOLTAGE
1
T
–T
vs. Temperature
vs. Supply
Initial
T
MIN
–T
MAX
vs. Common Mode
Initial
T
MIN
–T
MAX
INPUT BIAS CURRENT
–Input Bias Current
1
T
MIN
–T
MAX
vs. Temperature
vs. Supply
Initial
T
MIN
–T
MAX
vs. Common Mode
Initial
T
MIN
–T
MAX
+Input Bias Current
1
T
MIN
–T
MAX
vs. Temperature
vs. Supply
Initial
T
MIN
–T
MAX
vs. Common Mode
Initial
T
MIN
–T
MAX
INPUT CHARACTERISTICS
Input Resistance
–Input
+Input
Input Capacitance
–Input
+Input
Input Voltage Range
Common Mode
Conditions
Min
Max
300
500
Typ
50
75
1
Typ
50
125
1
Max
300
500
5
Unit
μ
V
μ
V
μ
V/
°
C
5 V–18 V
4
4
20
4
4
10
10
4
4
20
20
μ
V/V
μ
V/V
V
CM
=
±
10 V
10
10
35
10
10
20
20
10
10
35
35
μ
V/V
μ
V/V
200
800
9
450
1500
150
750
9
250
1100
15
200
1900
20
450
2500
30
nA
nA
nA/
°
C
5 V–18 V
175
220
250
175
220
200
240
175
220
250
300
nA/V
nA/V
V
CM
=
±
10 V
90
110
150
350
3
160
90
110
100
300
3
110
150
200
500
7
90
120
100
800
7
160
200
400
1300
15
nA/V
nA/V
nA
nA
nA/
°
C
400
700
5 V–18 V
80
100
150
80
100
100
120
80
120
150
200
nA/V
nA/V
V
CM
=
±
10 V
90
130
150
90
130
120
190
90
140
150
200
nA/V
nA/V
50
10
65
50
10
65
50
10
65
M
7
7
7
2
2
2
2
2
2
pF
pF
±
10
±
10
±
10
V
nV/
√
Hz
INPUT VOLTAGE NOISE
f
≥
1 kHz
2
2
2
INPUT CURRENT NOISE
–Input
+Input
f
≥
1 kHz
f
≥
1 kHz
10
12
10
12
10
12
pA/
√
Hz
pA/
√
Hz
OPEN LOOP TRANSRESISTANCE
V
OUT
=
±
10 V
R
LOAD
= 500
2.2
1.3
3.0
2.0
4.5
2.8
1.6
3.0
2.0
4.5
2.2
1.3
3.0
1.6
4.5
M
M
pF
T
MIN
–T
MAX
Transcapacitance
DIFFERENTIAL GAIN ERROR
2
DIFFERENTIAL PHASE ERROR
2
f = 4.4 MHz
0.03
0.03
0.03
%
f = 4.4 MHz
0.15
0.15
0.15
Degree
FREQUENCY RESPONSE
Small Signal Bandwidth
Gain = –1
3
Gain = –10
4
60
33
60
33
60
33
MHz
MHz
TOTAL HARMOMIC DISTORTION
f = 100 kHz,
2 V rms
5
0.005
0.005
0.005
%
SETTLING TIME
10 V Output Step
Gain = –1, to 0.1%
5
Gain = –10, to 0.1%
6
2 V Output Step
Gain = –1, to 0.1%
5
Gain = –10, to 0.1%
6
±
15 V Supplies
100
100
100
100
100
100
ns
ns
±
5 V Supplies
110
100
110
100
110
100
ns
ns
(@ T
A
= 25 C and V
S
= 15 V dc, unless otherwise noted)