AD8644 Analog Devices, AD8644 Datasheet - Page 7

• Manufacturer Part Number: AD8644
• Description: 18 V Operational Amplifier (Quad)
• Manufacturer: Analog Devices

Specifications of AD8644

• -3db Bandwidth: 5.5MHz
• Slew Rate: 7.5V/µs
• Vos: 1mV
• Ib: 80nA
• # Opamps Per Pkg: 4
• Input Noise (nv/rthz): 12nV/rtHz
• Vcc-vee: 5V to 18V
• Isy Per Amplifier: 1.1mA
• Packages: SOIC,SOP

Figure 17. Maximum Output Swing vs. Frequency, V
300
240
180
120
Figure 16. Maximum Output Swing vs. Frequency, V
20
18
16
14
12
10
60
Figure 18. Closed-Loop Output Impedance vs. Frequency
6
5
4
3
2
1
0
8
6
4
2
0
100
0
100
1k
5V ≤ V
T
A
= 25°C
V
A
R
T
V
A
R
T
A
S
VCL
L
S
A
VCL
L
S
= 5V
= 2kΩ
= 25°C
= 18V
= 2kΩ
= 25°C
≤ 18V
= 1
= 1
1k
1k
10k
A
V
= 100
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
10k
10k
100k
A
V
= 10
100k
100k
1M
1M
1M
A
S
V
S
= 18 V
= 5 V
= 1
10M
10M
10M
Rev. B | Page 7 of 16
140
120
100
100
40
20
80
60
40
20
80
60
40
20
0
0
0
100
100
1k
Figure 20. Common-Mode Rejection vs. Frequency
5V ≤ V
T
5V ≤ V
T
Figure 21. Power Supply Rejection vs. Frequency
A
A
= 25°C
= 25°C
Figure 19. Closed-Loop Gain vs. Frequency
S
S
≤ 18V
≤ 18V
10k
1k
1k
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
100k
10k
10k
100k
100k
1M
AD8614/AD8644
PSRR–
10M
PSRR+
1M
1M
V
T
A
S
= 18V
= 25°C
100M
10M
10M