LS204CN STMicroelectronics, LS204CN Datasheet - Page 10

• Manufacturer Part Number: LS204CN
• Description: IC OP AMP DUAL HI PERFORM 8-DIP
• Manufacturer: STMicroelectronics

Specifications of LS204CN

• Amplifier Type: General Purpose
• Number Of Circuits: 2
• Slew Rate: 1 V/µs
• Gain Bandwidth Product: 2.5MHz
• Current - Input Bias: 100nA
• Voltage - Input Offset: 500µV
• Current - Supply: 800µA
• Current - Output / Channel: 23mA
• Voltage - Supply, Single/dual (±): 6 V ~ 30 V, ±3 V ~ 15 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Output Type: -
• -3db Bandwidth: -
• Other names: 497-7335-5; LS204CN

Application information for active low-pass filters
4.5
Figure 14. 5th order low-pass filter (Butterworth) with unity gain configuration
Figure 15. 5th order high-pass filter (Butterworth) with unity gain configuration
10/16
Ci
Ri
Ci
Ri
Example
In the circuit of
The attenuation of the filter is 30 dB at 6.8 kHz and better than 60 dB at 15 kHz.
The same method, referring to
In this case the damping factor is found by taking the reciprocal of the numbers in
For Fc = 5 kHz and Ci = C1 = C2 = C3 = 1 nF we obtain:
C1
R1
R1 =
R2 =
C1 = 0.421
C2 = 1.753
C3 = 0.309
R4 =
Ri =
R3 =
C4 = 3.325
Ci = 1.354
-------------- -
0.354
-------------- -
0.421
-------------- -
1.753
-------------- -
3.325
-------------- -
0.309
1
1
1
1
1
Figure
--- -
R
1
--- -
C
--- -
R
--- -
R
--- -
R
--- -
R
1
1
1
1
1
--- -
C
--- -
C
1
1
--- -
C
--- -
C
C2
1
1
R2
----------- - = 6.33nF
2 fc
----------- - = 25.5k
2 fc
----------- - = 1.97nF
2 fc
----------- - = 8.20nF
2 fc
----------- - = 1.45nF
2 fc
----------- - = 15.14nF
2 fc
----------- - = 75.6k
2 fc
----------- - = 18.2k
2 fc
----------- - = 9.6k
2 fc
----------- - = 103k
2 fc
1
1
1
1
1
1
1
1
1
1
R1
C1
14, for Fc = 3.4 kHz and Ri = R1 = R2 = R3 = 10 kW, we obtain:
C2
R2
Table 7
and
Figure 15
R3
C3
is used to design high-pass filters.
R4
C4
C3
R3
C4
R4
Table
LS204
7.