LS204
HIGH PERFORMANCE
DUAL OPERATIONAL AMPLIFIERS
April 1998
.
LOW POWER CONSUMPTION
.
SHORT CIRCUIT PROTECTION
.
LOW DISTORTION, LOW NOISE
.
HIGH GAIN-BANDWIDTH PRODUCT
.
HIGH CHANNEL SEPARATION
Inve rting Input 2
No n-inve rting Input 2
No n-inve rting Input 1
-
CC
V
1
2
3
4
8
5
6
7
CC
V
+
-
+
-
+
Outp ut 1
Inve rting Input 1
Outp ut
PIN CONNECTIONS (top view)
ORDER CODES
Part Number
Temperature Range
Package
N
D
LS204C
0, +70
o
C
LS204I
-40, +105
o
C
N
DIP8
(Plastic Package)
D
SO8
(Plastic Micropackage)
DESCRIPTION
The LS204 is a high performance dual operational
amplifier with frequency and phase compensation
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 charac-
teristics over the entire supply voltage range, and
is particularlyintended for professional and telecom
applications (active filter, etc).
1/10
SCHEMATIC DIAGRAM (1/2 LS204)
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V
CC
Supply Voltage
18
V
V
i
Input Voltage
V
CC
V
id
Differential Input Voltage
(V
CC
- 1)
T
oper
Operating Temperature Range
LS204C
LS204I
0 to +70
-40 to +105
o
C
P
to t
Power Dissipation at T
amb
= 70
o
C
500
mW
T
j
Junction Temperature
150
o
C
T
stg
Storage Temperature Range
-65 to +150
o
C
LS204
2/10
ELECTRICAL CHARACTERISTICS (V
CC
=
15V, T
amb
= 25
o
C, unless otherwise specified)
Symbol
Parameter
Test Conditions
LS204I
LS204C
Unit
Min.
Typ.
Max.
Min.
Typ.
Max.
I
CC
Supply Current
0.7
1.2
0.8
1.5
mA
I
ib
Input Bias Current
50
150
100
300
nA
T
min.
< T
op
< T
max
.
300
700
nA
R
i
Input Resistance
f = 1kHz
1
1
M
V
io
Input Offset Voltage
R
s
10k
0.5
2.5
0.5
3.5
mV
R
s
10k
T
min
. < T
op
< T
max
.
3.5
5
mV
DV
io
Input Offset Voltage Drift
R
s
10k
T
min
. < T
op
< T
max
.
2
2
V/
o
C
I
io
Input Offset Current
5
20
12
50
nA
T
min
. < T
op
< T
max
.
40
100
nA
DI
io
Input Offset Current Drift
T
min
. < T
op
< T
max
.
0.08
0.1
nA
C
I
os
Output Short Circuit Current
23
23
mA
A
vd
Large Signal Voltage Gain
T
min
. < T
op
< T
max
.
R
L
= 2k
V
CC
=
15V
V
CC
=
4V
90
100
95
86
100
95
dB
GBP
Gain-Bandwidth Product
f = 100kHz
1.8
3
1.5
2.5
MHz
e
n
Equivalent Input Noise Voltage
f = 1kHz
R
s
= 50
R
s
= 1k
R
s
= 10k
8
10
18
15
10
12
20
nV
Hz
THD
Total Harmonic Distortion
A
V
= 20dB R
L
= 2k
V
O
= 2V
PP
f = 1kHz
0.03
0.1
0.03
0.1
%
V
opp
Output Voltage Swing
R
L
= 2k
V
CC
=
15V
V
CC
=
4V
13
3
13
3
V
V
opp
Large Signal Voltage Swing
R
L
= 10k
f = 10kHz
28
28
V
PP
SR
Slew Rate
Unity Gain, R
L
= 2k
0.8
1.5
1
V/
s
CMR
Common Mode Rejection Ratio
V
ic
= 10V
T
min
. < T
op
< T
max
.
90
86
dB
SVR
Supply Voltage Rejection Ratio
V
ic
= 1V
f = 100Hz
T
min
. < T
op
< T
max
.
90
86
dB
V
O1
/V
O2
Channel Separation
f = 1kHz
100
120
120
dB
LS204
3/10
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