LS404IN STMicroelectronics, LS404IN Datasheet - Page 7

• Manufacturer Part Number: LS404IN
• Description: IC OP AMP QUAD HI PERFORM 14-DIP
• Manufacturer: STMicroelectronics

Specifications of LS404IN

• Amplifier Type: General Purpose
• Number Of Circuits: 4
• Slew Rate: 1.5 V/µs
• Gain Bandwidth Product: 3MHz
• Current - Input Bias: 50nA
• Voltage - Input Offset: 700µV
• Current - Supply: 1.3mA
• Current - Output / Channel: 23mA
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Through Hole
• Package / Case: 14-DIP (0.300", 7.62mm)
• Number Of Channels: 4
• Voltage Gain Db: 100 dB
• Common Mode Rejection Ratio (min): 90 dB
• Input Offset Voltage: 2.5 mV
• Supply Current: 2 mA
• Maximum Power Dissipation: 400 mW
• Maximum Operating Temperature: + 105 C
• Mounting Style: Through Hole
• Maximum Dual Supply Voltage: +/- 18 V
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Output Type: -
• Voltage - Supply, Single/dual (±): -
• -3db Bandwidth: -
• Lead Free Status / Rohs Status: In Transition
• Other names: 497-7337-5; LS404IN

Fixed R = R1 = R2, we have (see figure 13)
Figure 13 : Filter Configuration
Three parameters are needed to characterize the
frequency and phase response of a 2nd order ac-
tive filter: the gain (Gv), the damping factio ( ) or
the Q factor (Q = 2 )
(fc).
Table 1
EXAMPLE
Figure 14 : 5th Order Low-pass Filter (Butterworth) with Unity Gain configuration
C 1 =
Bessel
Butterworth
Chebyschev
--- -
R
1
------ -
c
Filter Response
Vin
1
), and the cuttoff frequency
R1
R2
------ -
------ -
------ -
2
2
2
3
2
2
C1
The higher order response are obtained with a se-
ries of 2nd order sections. A simple RC section is
introduced when an odd filter is required.
The choice of ’ ' (or Q factor) determines the filter
response (see table 1).
------ -
------ -
------ -
C 2 =
Q
3
2
2
C2
1
1
1
--- -
R
1
Frequency at which Phase Shift is -90°C
Frequency at which Gv = -3dB
Frequency at which the amplitude response
passes through specified max. ripple band and
enters the stop bank.
---------- -
1
c
Cuttoff Frequency fc
Vout
LS404
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