ST LS404 User Manual
LS404
HIGH PERFORMANCE
QUAD OPERATIONAL AMPLIFIER
■ SINGLE OR SPLIT SUPPLY OPERATION
■ LOW POWER CONSUMPTION
■ SHORT CIRCUIT PROTECTION
■ LOW DISTORTION, LOW NOISE
■ HIGH GAIN-BANDWIDTH PRODUCT
■ HIGH CHANNEL SEPARATION
DESCRIPTION
The LS404 is a high performance quad operational amplifier with frequenc y and phas e compe nsation built into the chip. The internal phase compensation allows stable operation as voltage follower
in spite of its high Gain-Bandwidth Product.
The circuit presents very stable electrical characteristics over the entire supply voltage range, and
is particularly intended for professional and telecom 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.
N
DIP14
(Plastic Package)
D
SO14
(Plastic Micropacka ge)
PIN CONNECTIONS (top view)
ORDER CODE
Part Number Temperature Range
LS404C 0°C, +70°C
LS404I -40°C, +105°C
LS404M -55°C, +125°C
Example : LS204CN
N = Dual in Line Package (D IP)
D = Small Outline Package (SO) - also available in Tape & Reel (DT)
November 2001
Package
ND
••
••
••
Output 1
Inverting Input 1
Non-inverting Input 1
V
CC
Non-inverting Input 2
Inverting Input 2
Output 2
1
2
-
+
3
+
4
5
+
-
6
7
14
13
-
+
12
11
10
+
9
8
Output 4
Inverting Input 4
Non-inverting Input 4
-
V
CC
Non-inverting Input 3
Inverting Input 3
Output 3
1/11
LS404
SCHEMATIC DIAGRAM (1/4 LS404)
Inverting input
Non-inverting
input
Output
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
T
V
V
oper
P
T
Supply voltage ±18 V
CC
Input Voltage Positive
i
Differential Input Voltage
id
Negative
Operating Temperature Range LS204C
LS204I
LS204I
Power Dissipation at T
tot
Storage Temperature Range -65 to +150 °C
stg
amb
= 70°C
+V
CC
-VCC - 0.5
±(V
-1)
CC
0 to +70
-40 to +105
-55 to +125
400 mW
V
V
°C
2/11
ELECTRICAL CHARACTERISTICS
V
= ±15V, T
CC
Symbol Parameter
I
Supply Current 1.3 2 1.5 3 mA
cc
Input Bias Current
I
ib
R
Input Resistance (f = 1kHz) 1 1 M
i
Input Offset Voltage (Rs ≤ 10kΩ)
V
io
DV
Input Offset Voltage Drift (Rs ≤ 10kΩ)
io
Input Offset Current
I
io
Input Offset Current Drift
DI
io
I
Output Short-circuit Current 23 23 mA
os
Large Signal Voltage Gain
A
vd
GBP
Gain Bandwith Product
Equivalent Input Noise Voltage
e
n
Total Harmonic Distortion
THD
Output Voltage Swing
±V
opp
Large Signal Voltage Swing
V
opp
Slew Rate (R
SR
SVR
CMR
V
o1/Vo2
Supply Voltage Rejection Ratio
Common Mode Rejection Ratio
Channel Separation (f= 1kHz) 100 120 120 dB
= 25°C (unless otherwise specified)
amb
T
< Top < T
min
< Top < T
T
min
R
= 2kΩ, VCC = ±15V
L
V
= ±4V
CC
f =100kHz, R
max
max
= 2k, CL = 100pF
L
f = 1kHz,
= 50
R
Ω
s
R
= 1k
Ω
s
= 10k
R
Ω
s
Unity Gain
= 2k
Ω,
Vo = 2V
pp
R
L
f = 1kHz
f = 20kHz
= 2kΩ, VCC = ±15V
R
L
V
= ±4V
CC
f = 10kHz, R
= 1k
R
L
V
= 1V, f = 100Hz
ic
V
= 10V
ic
= 10k
Ω
L
Ω
= 2kΩ, unity gain)
L
LS404
LS404I - LS404M LS404C
Min. Typ. Max. Min. Typ. Max.
50 200 100 300 nA
0.7 2.5 0.5 5 mV
55
10 40 20 80 nA
0.08 0.1 nA/°C
90
100
95
86 100
95
1.8 3 1.5 2.5 MHz
8
10
18
0.01
0.03
±13
±3
22
20
15 10
12
20
0.4 0.01
0.03
±13
±3
22
20
0.8 1.5 1 V/µs
90 94 86 90
90 94 86 90
Unit
µV/°C
dB
nV
----------- -
Vpp
dB
dB
Ω
Hz
%
V
3/11
LS404
4/11
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