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L2720D
September 2002
s
OUTPUT CURRENT TO 1 A
s
OPERATES AT LOW VOLTAGES
s
SINGLE OR SPLIT SUPPLY
s
LARGE COMMON-MODE AND
DIFFERENTIAL MODE RANGE
s
LOW INPUT OFFSET VOLTAGE
s
GROUND COMPATIBLE INPUTS
s
LOW SATURATION VOLTAGE
s
THERMAL SHUTDOWN
s
CLAMP DIODE
DESCRIPTION
The L2720D is a monolithic integrated circuits in SO-
16 package, intended for use as power operational
amplifiers in a wide range of applications including
servo amplifiers and power supplies.
It is particularly indicated for driving, inductive loads,
as motor and finds applications in compact-disc VCR
automotive, etc.
The high gain and high output power capability pro-
vide superior performance whatever an operational
amplifier/power booster combination is required.
SO-16 (narrow)
ORDERING NUMBER: L2720D
LOW DROP DUAL POWER OPERATIONAL AMPLIFIER
BLOCK DIAGRAM
L2720D
2/6
PIN CONNECTION (Top view)
SCHEMATIC DIAGRAM (one section)
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V
S
Supply Voltage
28
V
V
S
Peak Supply Voltage (50ms)
50
V
V
i
Input Voltage
Vs
V
i
Differential Input Voltage
Vs
I
o
DC Output Current
1
A
I
p
Peak Output Current (non repetitive)
1.5
A
P
tot
Power Dissipation at T
amb
= 50C
800
mW
T
op
Operating Temperature
40 to 85
C
T
stg
, T
j
Storage and Junction Temperature
40 to 150
C
3/6
L2720D
THERMAL DATA
ELECTRICAL CHARACTERISTICS (V
s
= 24V, T
amb
= 25C unless otherwise specified)
Symbol
Parameter
Value
Unit
R
th j-amb
Thermal Resistance Junction to ambient
Typ.
95
C/W
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
s
Single Supply Voltage
4
28
V
V
s
Split Supply Voltage
2
14
V
I
s
Quiescent Drain Current
V
s
= 24V
V
s
= 8V
10
9
15
15
mA
mA
I
b
Input Bias Current
0.2
1
A
V
os
Input Offset Voltage
10
mV
I
os
Input Offset Current
100
nA
SR
Slew Rate
2
V/
s
B
Gain-bandwidth Product
1.2
MHz
R
i
Input Resistance
500
k
G
v
O.L. Voltage Gain
f = 100Hz
f = 1kHz
70
80
60
dB
e
N
Input Noise Voltage
B = 22Hz to 22kHz
10
V
I
N
Input Noise Voltage
200
pA
CMR
Common Mode Rejection
f = 1kHz
66
84
dB
SVR
Supply Voltage Rejection
f = 100Hz; V
s
= 24V
R
G
= 10k
;
Vs = 12V
V
R
= 0.5V; Vs = 6V
60
70
75
80
dB
V
DROP(H)
Drop voltage high
V
s
= 2.5V to 12V
I
p
= 100mA
I
p
= 500mA
0.7
1
1.5
V
V
DROP(L)
Drop voltage low
V
s
= 2.5V to 12V
I
p
= 100mA
I
p
= 500mA
0.3
0.5
1
V
C
s
Channel Separation
f = 1KHz; V
s
= 24V
R
L
= 10
;
V
s
= 6V
G
v
= 30dB
60
60
dB
T
sd
Thermal Shutdown Junction
Temperature
145
C
V
o
V
2
----
=
Figure 1. Quiescent Current vs. Supply Voltage
Figure 2. Open Loop Gain vs. Frequency
L2720D
4/6
Figure 3. Common Mode Rejection vs.
Frequency
Figure 4. Output Swing vs. Load Current
(V
S
= 5V).
Figure 5. Output Swing vs. Load Current
(V
S
= 12V).
Figure 6. Supply Voltage rejection vs.
Frequency
Figure 7. Channel Separation vs. Frequency
5/6
L2720D
SO16 Narrow
DIM.
mm
inch
MIN.
TYP.
MAX.
MIN.
TYP.
MAX.
A
1.75
0.069
a1
0.1
0.25
0.004
0.009
a2
1.6
0.063
b
0.35
0.46
0.014
0.018
b1
0.19
0.25
0.007
0.010
C
0.5
0.020
c1
45 (typ.)
D (1)
9.8
10
0.386
0.394
E
5.8
6.2
0.228
0.244
e
1.27
0.050
e3
8.89
0.350
F (1)
3.8
4
0.150
0.157
G
4.6
5.3
0.181
0.209
L
0.4
1.27
0.016
0.050
M
0.62
0.024
S
(1) D and F do not include mold flash or protrusions. Mold flash or potrusions shall not exceed 0.15mm (.006inch).
OUTLINE AND
MECHANICAL DATA
8(max.)
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