UTC LM318
LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO.,LTD.
1
QW-R105-016,A
DESCRIPTION
The UTC LM318 is precision high speed operational amplifier
designed for applications requiring wide bandwidth and high slew
rate. It features a factor of ten increase in speed over general
purpose device without sacrificing DC performance.
The LM318 has internal unity gain frequency compensation.
This considerably simplifies its application since no external
components are necessary for operation. However, unlike most
internally compensated amplifiers, external frequency
compensation may be added for optimum performance. For
inverting applications, feed forward compensation will boost the
slew rate to over 150V/s and almost double the bandwidth.
Overcompensation can be used with the amplifier for greater
stability when maximum bandwidth is not needed. Further, a
single capacitor can be added to reduce the 0.1% settling time to
under 1s.
The high speed and fast settling time of the op amps make it
useful in A/D converters, oscillators, active filters, sample and hold
circuits, or general purpose amplifiers. The device is easy to apply
and offer an order of magnitude better AC performance than
industry standards such as the LM709.
The UTC LM318 is specified from 0
C to +70
C.
FEATURES
*15MHz small signal bandwidth
*Guaranteed 50V/
s slew rate
*Maximum bias current of 250nA
*Operates from supplies of5V to 20V
*Internal frequency compensation
*Input and output overload protected
*Pin compatible with general purpose op amps
DIP-8
SOP-8
ABSOLUTE MAXIMUM RATINGS
PARAMETER VALUE UNIT
Supply Voltage
20
V
Power Dissipation (Note 1)
500
mW
Differential Input Current (Note 2)
10
mA
Input Voltage (Note 3)
15
V
Output Short-Circuit Duration
Continuous
Operating Temperature Range
0 to +70
C
Storage Temperature Range
-65 to +150
C
UTC LM318
LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO.,LTD.
2
QW-R105-016,A
ELECTRICAL CHARACTERISTICS
(Note 4)
PARAMETER TEST
CONDITION
MIN
TYP
MAX
UNIT
Input Offset Voltage
T
A
=25
C
4
10 mV
Input Offset Current
T
A
=25
C
30
200 nA
Input Bias Current
T
A
=25
C
150
500 nA
Input Resistance
T
A
=25
C
0.5 3 M
Supply Current
T
A
=25
C
5
10 mA
Large Signal Voltage Gain
T
A
=25
C, Vs=15V
V
OUT
=10V, R
L
2K
25 200 V/mV
Slew Rate
T
A
=25
C Vs=15V
Av=1 (Note 5)
50 70 V/s
Small Signal Bandwidth
T
A
=25
C Vs=15V
15 MHz
Input Offset Voltage
15
mV
Input Offset Current
300
nA
Input Bias Current
750
nA
Large Signal Voltage Gain
Vs=15V
V
OUT
=10V, R
L
2K
20 V/mV
Output Voltage Swing
Vs=15V,R
L
=2K
12
13
V
Input Voltage Range
Vs=15V
11.5
V
Common Mode Rejection Ratio
70
100
dB
Supply Voltage Rejection Ratio
65
80
dB
Note 1: The LM318 is 110
C. For operating at elevated temperatures, devices in the H08 package must be derated
based on a thermal resistance of 160
C/W, junction to ambient, or 20
C/W, junction to case. The thermal
resistance of the dual-in-line package is100
C/W, junction to ambient.
Note 2: The inputs are shunted with back-to back diodes for over voltage protection. Therefore, excessive current
will flow if a differential input voltage in excess of 1V is applied between the inputs unless some limiting
resistance is used.
Note 3: For supply voltage less than 15V,the absolute maximum input voltage is equal to the supply voltage.
Note 4: These specifications apply for
5V
Vs
20V and 0
CT
A
+70
C. Also, power supplies must be
bypassed with 0.1F disc capacitors.
Note 5: Slew rate is tested with Vs=15V.V
IN
is stepped from-7.5V to+7.5V and vice versa. The slew rate between
5.0V and +5.0V and vice versa are tested and guaranteed to exceed 50 V/s.
UTC LM318
LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO.,LTD.
3
QW-R105-016,A
TYPICAL PERFORMANCE CHARACTERISTICS
Input C urrent
TE M P E R A TU R E( )
I
N
PU
T
C
U
R
R
EN
T
(
n
A
)
0
70
60
50
40
30
20
10
200
150
100
50
0
40
30
20
10
SU P P LY V OLTA G E ( V )
5
15
20
10
110
100
105
95
115
V
O
L
T
A
G
E
G
A
I
N
(
d
B
)
V oltage G ain
BIA S
OFFS E T
T
A
= 0
T
A
= 25
T
A
= 70
FREQUENCY(Hz)
100
10K
100K
1K
40
0
20
-20
60
S
U
P
P
L
Y
R
E
J
E
C
T
I
O
N
(
d
B
)
Power Supply Rejection
10M
1M
100
80
FREQUENCY(Hz)
5
20
10
100
10
30
3
300
NO
IS
E
(
n
V
/
Hz)
3000
1000
15
Input Noise Voltage
Rs=100K
Rs=100,Rs=1K
T
A
=25
POSITIVE SUPPLY
Vs=15V
T
A
=25
NEGATIVE SUPPLY
UTC LM318
LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO.,LTD.
4
QW-R105-016,A
FREQUENCY(Hz)
100
10K
100K
1
K
40
120
20
0
60
C
O
M
M
O
N
M
O
D
E
R
E
J
E
C
T
I
O
N
(
d
B
)
1M
100
80
10M
Common Mode Rejection
SUPPLY VOLTAGE(V)
5
15
20
10
5.5
4.5
5.0
4.0
S
U
P
P
L
Y
C
U
R
R
E
N
T
(
m
A
)
Supply Current
Rs=2K
T
A
=0C
T
A
=25C
T
A
=70C
T
A
=25C
10
-3
10
3
10
2
10
1
10
-1
10
-2
10
0
FREQUENCY(Hz)
10
100
10K
1K
O
U
T
P
U
T
I
M
P
E
D
A
N
C
E
(
)
100K 1M
Closed Loop Output Impedande
OUTPUT CURRENT (mA)
0
10
15
5
4
12
2
0
6
O
U
T
P
U
T
S
W
I
N
G
(
V
)
20
10
8
25
Current Limiting
14
T
A
=25
T
A
=25
T
A
=70
Vs=15V
Av=1000
Av=1
Vs=15V
0
10
40
30
16
14
12
18
U
N
I
T
Y
G
A
I
N
B
A
N
D
W
I
D
T
H
(
M
H
z
)
20
22
20
50
Unity Gain Bandwidth
70
60
TEMPERATURE()
DIFFERENTIAL INPUT(V)
-0.8
-0.4 -0.2
-0.6
200
-400
0
-600
I
N
P
U
T
C
U
R
R
E
N
T
(
n
A
)
Input Current
0
0.6 0.8
0.4
0.2
600
400
-200
Vs=15V
Vs=5V
Vs=10V
Vs=20V
UTC LM318
LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO.,LTD.
5
QW-R105-016,A
0
10
40
30
90
80
70
100
S
L
E
W
(
V
/
s
)
20
120
110
50
Voltage Follower Slew Rate
0.03
0.1
5
-10
0
-15
O
U
T
P
U
T
V
O
L
T
A
G
E
(
V
)
Inverter Settling Time
0.3
3
1
15
10
-5
70
60
TEMPERATURE()
TIME(s)
Vs=15V
Rs=Rf=10K
Cf=5pF
POSITIVE SLEW
NEGATIVE SLEW
Vs=15V
Rs=5K
Rf=5K
Cf=10pF
C5,7=0.1F
T
A
=25
100mV
100mV
10mV
10mV
1mV
1mV
0.5M
1M
8
2
6
0
O
U
T
P
U
T
S
W
I
N
G
(
V
)
Large Signal Frequency Response
2M
10M
5M
12
10
4
FREQUENCY(Hz)
50M
20M
14
10
100
100K
10K
40
20
0
100
1K
120
80
1M
Open Loop Frequency Response
100M
10M
FREQUENCY(Hz)
60
-20
V
O
L
T
A
G
E
G
A
I
N
(
d
B
)
225
180
90
135
0
45
PH
ASE LAG
(
d
egr
e
e
s
)
-0.2
0.2
1.4
1.0
-8
-12
-16
4
0.6
8
0
1.8
Voltage Follower Pulse Response
TIME(s)
-4
-20
V
O
L
T
A
G
E
S
W
I
I
N
G
(
V
)
20
16
12
1M
8
2
6
0
Large Signal Frequency Response
3M
10M
12
10
4
FREQUENCY(Hz)
100M
30M
14
O
U
T
P
U
T
S
W
I
N
G
(
V
)
T
A
=25
Vs=15V
T
A
=25
Vs=15V
PHASE
GAIN
INPUT
OUTPUT
T
A
=25
Vs=15V
T
A
=25
Vs=15V
FEEDFORWARD
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