Datasheet

AD8682/AD8684
Rev. B | Page 5 of 16
TYPICAL PERFORMANCE CHARACTERISTICS
FREQUENCY (Hz)
OPEN-LOOP GAIN (dB)
1k
–40
–20
60
80
10k 1M 10M100k
20
40
0
V
S
= ±15V
T
A
= 25°C
PHASE (Degree)
–45
135
45
90
0
–90
180
06278-003
Figure 3. AD8682 Open-Loop Gain and Phase vs. Frequency
TEMPERATURE (°C)
OPEN-LOOP GAIN (V/mV)
–75
0
5
35
45
–25 100 12525
15
25
10
20
30
40
75500–50
V
S
= ±15V
R
L
= 10kΩ
06278-004
Figure 4. AD8682 Open-Loop Gain vs. Temperature
LOAD CAPACITANCE (pF)
OVERSHOOT (%)
0
0
10
70
80
200 400 500
30
50
20
40
60
300100
V
S
= ±15V
R
L
= 2kΩ
V
IN
= 100mV p-p
A
VCL
= 1
T
A
= 25°C
+OS
–OS
06278-005
Figure 5. Small Signal Overshoot vs. Load Capacitance
FREQUENCY (Hz)
CLOSED-LOOP GAIN (dB)
1k
–30
–20
60
70
10k 1M 10M100k
20
40
0
V
S
= ±15V
T
A
= 25°C
–10
50
10
30
A
VCL
= 100
A
VCL
= 10
A
VCL
= 1
06278-006
Figure 6. AD8682 Closed-Loop Gain vs. Frequency
TEMPERATURE (°C)
SLEW R
A
TE (V/µs)
–75
0
5
30
–25 100 12525
15
25
10
V
S
= ±15V
R
L
= 10kΩ
C
L
= 50pF
20
75500–50
–SR
+SR
06278-007
Figure 7. Slew Rate vs. Temperature
TEMPERATURE (°C)
INPUT BIAS CURRENT (pA)
–75
0.1
1000
–25 100 12525
1
100
10
75500–50
V
S
= ±15V
V
CM
= 0V
06278-008
Figure 8. AD8682 Input Bias Current vs. Temperature