Datasheet

OPA604
10
SBOS019A
www.ti.com
FIGURE 5. Three-Pole Generalized Immittance Converter (GIC) Low-Pass Filter.
FIGURE 4. Three-Pole Low-Pass Filter.
R
5
2kΩ
V
O
C
3
1000pF
Low-pass
3-pole Butterworth
f
–3dB
= 40kHz
R
1
6.04kΩ
V
IN
R
2
4.02kΩ
R
2
4.02kΩ
C
2
1000pF
C
1
1000pF
R
4
5.36kΩ
See Application Bulletin AB-026
for information on GIC filters.
1
2
OPA2604
1
2
OPA2604
OPA604
FIGURE 6. Differential Amplifier with Low-Pass Filter.
R
4
22kΩ
R
3
10kΩ
V
O
C
2
2000pF
R
2
22kΩ
C
1
3000pF
R
1
2.7kΩ
V
IN
f
p
= 20kHz
C
3
100pF
OPA604
V
O
G = 1
100pF
–
V
IN
+
7.87kΩ
7.87kΩ
10kΩ 10kΩ
10kΩ 10kΩ
100kHz Input Filter
OPA604
1
2
OPA2604
1
2
OPA2604