ADA4665-2 Analog Devices, ADA4665-2 Datasheet - Page 16

• Manufacturer Part Number: ADA4665-2
• Description: 16 V, 1 MHz, CMOS Rail-to-Rail Input/Output Operational Amplifier
• Manufacturer: Analog Devices

Specifications of ADA4665-2

• Vcc-vee: 5V to 16V
• Isy Per Amplifier: 290µA
• Packages: SOP,SOIC
• -3db Bandwidth: 1.2MHz
• Slew Rate: 1V/µs
• Vos: 1mV
• Ib: 0.1pA
• # Opamps Per Pkg: 2
• Input Noise (nv/rthz): 32nV/rtHz

ADA4665-2
When R1 = R2 and C1 = 2C2, the values of Q and the cutoff
frequency are calculated as follows:
Q =
f
c
–10
–20
–30
–40
–50
–60
V
10
IN
=
0
100
2
C2
R1
π
22.5kΩ
22.5kΩ
Figure 58. Low-Pass Filter: Gain vs. Frequency
(
R1
0.5nF
R1
R2
R1 R2 C1 C
C2
R2
+
Figure 57. Two-Pole Low-Pass Filter
C1
1
R2
C2
1k
)
2
FREQUENCY (Hz)
10k
1/2
+V
–V
SY
SY
ADA4665-2
1nF
C1
100k
V
OUT
1M
Rev. 0 | Page 16 of 20
Figure 59 shows a two-pole high-pass filter, with cutoff frequency
at 10 kHz and quality factor, Q, of 1/√2.
When R2 = 2R1 and C1 = C2, the values of Q and the cutoff
frequency are calculated as follows:
Q
f
–100
–110
–120
V
c
–10
–20
–30
–40
–50
–60
–70
–80
–90
IN
=
10
=
0
10
2
R1
π
R1
Figure 60. High-Pass Filter: Gain vs. Frequency
0.5nF
(
C1
C1
0.5nF
R2
R1
45kΩ
C2
R2
Figure 59. Two-Pole High-Pass Filter
+
C1
R2
1
100
C2
C2
C1
)
C2
FREQUENCY (Hz)
1k
1/2
+V
–V
SY
SY
ADA4665-2
22.5kΩ
10k
R1
100k
V
OUT
1M