
AD708–SPECIFICATIONS
(@ +25
8
C and
6
15 V dc, unless otherwise noted)
–2–
REV. B
AD708J/A
Typ
30
50
0.3
0.3
1.0
2.0
15
0.5
2.0
2
AD708B
Typ
5
15
0.1
0.3
0.5
1.0
10
0.1
0.2
1
AD708S
Typ
5
15
0.1
0.3
0.5
1.0
10
0.1
0.2
1
Model
INPUT OFFSET VOLTAGE
1
Conditions
Min
Max
100
150
1.0
Min
Max
50
65
0.4
Min
Max
30
50
0.3
Units
μ
V
μ
V
μ
V/
°
C
μ
V/Month
nA
nA
pA/
°
C
nA
nA
pA/
°
C
T
MIN
to T
MAX
Drift
Long Term Stability
INPUT BIAS CURRENT
2.5
4.0
40
2.0
4.0
60
1.0
2.0
25
1.0
1.5
25
1
4
30
1
1.5
25
T
MIN
to T
MAX
Average Drift
OFFSET CURRENT
V
CM
= 0 V
T
MIN
to T
MAX
Average Drift
MATCHING CHARACTERISTICS
2
Offset Voltage
80
150
1.0
4.0
5.0
50
75
0.4
1.0
2.0
30
50
0.3
1.0
2.0
μ
V
μ
V
μ
V/
°
C
nA
nA
dB
dB
dB
dB
dB
μ
V p-p
nV/
√
Hz
nV/
√
Hz
nV/
√
Hz
pA p-p
pA/
√
Hz
pA/
√
Hz
pA/
√
Hz
T
MIN
to T
MAX
Offset Voltage Drift
Input Bias Current
T
MIN
to T
MAX
Common-Mode Rejection
120
110
110
110
135
140
130
130
120
120
140
140
130
130
120
120
140
140
T
MIN
to T
MAX
Power Supply Rejection
T
MIN
to T
MAX
Channel Separation
INPUT VOLTAGE NOISE
0.1 Hz to 10 Hz
f = 10 Hz
f = 100 Hz
f = 1 kHz
0.1 Hz to 10 Hz
f = 10 Hz
f = 100 Hz
f = 1 kHz
0.23
10.3
10.0
9.6
14
0.32
0.14
0.12
0.6
18
13.0
11.0
35
0.9
0.27
0.18
0.23
10.3
10.0
9.6
14
0.32
0.14
0.12
0.6
12
11.0
11.0
35
0.8
0.23
0.17
0.23
10.3
10.0
9.6
14
0.32
0.14
0.12
0.35
12
11
11
35
0.8
0.23
0.17
INPUT CURRENT NOISE
COMMON-MODE
REJECTION RATIO
V
CM
=
±
13 V
T
MIN
to T
MAX
V
O
=
±
10 V
R
LOAD
≥
2 k
T
MIN
to T
MAX
120
120
140
140
130
130
140
140
130
130
140
140
dB
dB
OPEN-LOOP GAIN
3
3
10
10
5
5
10
10
4
4
10
7
V/
μ
V
V/
μ
V
POWER SUPPLY
REJECTION RATIO
V
S
=
±
3 V to
±
18 V
T
MIN
to T
MAX
110
110
130
130
120
120
130
130
120
120
130
130
dB
dB
FREQUENCY RESPONSE
Closed Loop Bandwidth
Slew Rate
INPUT RESISTANCE
Differential
Common Mode
OUTPUT VOLTAGE
0.5
0.15
0.9
0.3
0.5
0.15
0.9
0.3
0.5
0.15
0.9
0.3
MHz
V/
μ
s
60
200
14
13.0
12.5
200
400
14.0
13.0
12.5
200
400
14
13
12.5
M
G
±
V
±
V
±
V
R
LOAD
≥
10 k
R
LOAD
≥
2 k
R
LOAD
≥
1 k
R
LOAD
≥
2 k
T
MIN
to T
MAX
13.5
12.5
12.0
13.5
12.5
12.0
13.5
12.5
12.0
12.0
13.0
12.0
13.0
12.0
13
±
V
OPEN-LOOP OUTPUT
RESISTANCE
60
60
60