LS404
HIGH PERFORMANCE
QUAD OPERATIONAL AMPLIFIER
s
s
s
s
s
s
SINGLE OR SPLIT SUPPLY OPERATION
LOW POWER CONSUMPTION
SHORT CIRCUIT PROTECTION
LOW DISTORTION, LOW NOISE
HIGH GAIN-BANDWIDTH PRODUCT
HIGH CHANNEL SEPARATION
N
DIP14
(Plastic Package)
DESCRIPTION
The LS404 is a high performance quad operation-
al amplifier with frequency and phase compensa-
tion built into the chip. The internal phase compen-
sation allows stable operation as voltage follower
in spite of its high Gain-Bandwidth Product.
The circuit presents very stable electrical charac-
teristics over the entire supply voltage range, and
is particularly intended for professional and tele-
com applications (active filter, etc).
The patented input stage circuit allows small input
signal swings below the negative supply voltage
and prevents phase inversion when the inputs are
over drivers.
ORDER CODE
Package
Part Number Temperature Range
N
LS404C
0°C, +70°C
LS404I
-40°C, +105°C
LS404M
-55°C, +125°C
Example :
LS204CN
•
•
•
D
•
•
•
D
SO14
(Plastic Micropackage)
PIN CONNECTIONS
(top view)
Output 1 1
Inverting Input 1 2
Non-inverting Input 1
V
CC
+
Non-inverting Input 2
Inverting Input 2
Output 2
3
4
5
6
7
+
-
+
-
-
+
-
+
14 Output 4
13 Inverting Input 4
12 Non-inverting Input 4
11 V
CC
-
10 Non-inverting Input 3
9
8
Inverting Input 3
Output 3
N =
Dual in Line Package (DIP)
D =
Small Outline Package (SO) - also available in Tape & Reel (DT)
November 2001
1/11
LS404
SCHEMATIC DIAGRAM
(1/4 LS404)
Inverting input
Non-inverting
input
Output
ABSOLUTE MAXIMUM RATINGS
Symbol
V
CC
V
i
V
id
T
oper
P
tot
T
stg
Power Dissipation at T
amb
= 70°C
Storage Temperature Range
Supply voltage
Input Voltage
Differential Input Voltage
Operating Temperature Range
LS204C
LS204I
LS204I
Positive
Negative
Parameter
Value
±18
+V
CC
-V
CC
- 0.5
±(V
CC
-1)
0 to +70
-40 to +105
-55 to +125
400
-65 to +150
Unit
V
V
V
°C
mW
°C
2/11
LS404
ELECTRICAL CHARACTERISTICS
V
CC
= ±15V, T
amb
= 25°C (unless otherwise specified)
LS404I - LS404M
Symbol
I
cc
I
ib
R
i
V
io
DV
io
I
io
DI
io
I
os
A
vd
Parameter
Min.
Supply Current
Input Bias Current
Input Resistance (f = 1kHz)
Input Offset Voltage (R
s
≤
10kΩ)
Input Offset Voltage Drift (R
s
≤
10kΩ)
T
min
<
T
op
<
T
max
Input Offset Current
Input Offset Current Drift
T
min
<
T
op
<
T
max
Output Short-circuit Current
Large Signal Voltage Gain
R
L
= 2kΩ, V
CC
= ±15V
V
CC
= ±4V
Gain Bandwith Product
f =100kHz, R
L
= 2k, C
L
= 100pF
Equivalent Input Noise Voltage
f = 1kHz,
R
s
= 50Ω
R
s
= 1kΩ
R
s
= 10kΩ
Total Harmonic Distortion
Unity Gain
R
L
= 2kΩ, V
o
= 2V
pp
f = 1kHz
f = 20kHz
Output Voltage Swing
R
L
= 2kΩ, V
CC
= ±15V
V
CC
= ±4V
Large Signal Voltage Swing
f = 10kHz, R
L
= 10kΩ
R
L
= 1kΩ
Slew Rate (R
L
= 2kΩ, unity gain)
Supply Voltage Rejection Ratio
V
ic
= 1V, f = 100Hz
Common Mode Rejection Ratio
V
ic
= 10V
0.8
90
90
100
±13
±3
22
20
1.5
94
94
120
86
86
Typ.
1.3
50
1
0.7
5
10
0.08
23
100
95
3
86
40
2.5
Max.
2
200
Min.
Typ.
1.5
100
1
0.5
5
20
0.1
23
100
95
2.5
80
5
Max.
3
300
mA
nA
MΩ
mV
µV/°C
nA
nA/°C
mA
dB
LS404C
Unit
90
1.8
GBP
1.5
MHz
e
n
8
10
18
15
10
12
20
nV
-----------
-
Hz
THD
%
0.01
0.03
0.4
0.01
0.03
±13
±3
22
20
1
90
90
120
Vpp
V/µs
dB
dB
dB
V
±V
opp
V
opp
SR
SVR
CMR
V
o1
/V
o2
Channel Separation (f= 1kHz)
3/11