AD8638 Analog Devices, AD8638 Datasheet - Page 8

• Manufacturer Part Number: AD8638
• Description: 16 V Auto-Zero, Rail-to-Rail Output Operational Amplifier
• Manufacturer: Analog Devices

Specifications of AD8638

• -3db Bandwidth: 1.5MHz
• Slew Rate: 2V/µs
• Vos: 3µV
• Ib: 1pA
• # Opamps Per Pkg: 1
• Input Noise (nv/rthz): 59nV/rtHz
• Vcc-vee: 5V to 16V
• Isy Per Amplifier: 1.5mA
• Packages: SOIC,SOT-23

AD8638/AD8639
T
A
= 25°C, unless otherwise noted.
–100
–120
120
100
–20
–40
–60
–80
80
60
40
20
–20
–40
100
0
0.1
60
40
20
1k
10
1k
0
1
100
1k
V
R
Figure 17. Open-Loop Gain and Phase vs. Frequency
SY
L
A
A
A
V
= 2kΩ
V
V
V
SY
= ±2.5V
= +100
= +10
= +1
Figure 19. Output Impedance vs. Frequency
GAIN
Figure 18. Closed-Loop Gain vs. Frequency
= ±2.5V
A
V
1k
= –100
10k
10k
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
A
10k
V
= –10
PHASE
100k
100k
100k
A
C
V
C
L
1M
= +1
L
= 200pF
1M
= 20pF
1M
V
R
C
SY
L
L
= 2kΩ
= 20pF
= ±2.5V
10M
10M
10M
120
100
80
60
40
20
0
–20
–40
–60
–80
–100
–120
Rev. F | Page 8 of 20
–100
–120
120
100
–20
–40
–60
–80
80
60
40
20
100
–20
–40
0.1
0
1k
10
60
40
20
1k
1
0
100
1k
V
V
R
Figure 20. Open-Loop Gain and Phase vs. Frequency
A
A
A
SY
SY
L
V
V
V
= 2kΩ
= ±8V
= ±8V
= +100
= +10
= +1
Figure 22. Output Impedance vs. Frequency
GAIN
Figure 21. Closed-Loop Gain vs. Frequency
A
V
1k
= –100
10k
10k
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
10k
A
V
PHASE
= –10
100k
100k
100k
C
L
1M
A
= 200pF
C
1M
V
L
= +1
1M
= 20pF
V
R
C
SY
L
L
= 2kΩ
= 20pF
= ±8V
10M
10M
10M
120
100
80
60
40
20
–20
–40
–60
–80
–100
–120
0