Technical Data Sheet

L2726
®
LOW DROP DUAL POWER OPERATIONAL AMPLIFIER
..
..
..
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OUTPUT CURRENT TO 1 A
OPERATES AT LOW VOLTAGES
SINGLE OR SPLIT SUPPLY
LARGE COMMON-MODE AND
DIFFERENTIAL MODE RANGE
LOW INPUT OFFSET VOLTAGE
GROUND COMPATIBLE INPUTS
LOW SATURATION VOLTAGE
THERMAL SHUTDOWN
CLAMP DIODE
SO20
(12 + 4 + 4)
ORDERING NUMBER : L2726
DESCRIPTION
The L2726 is a monolithic integrated circuit in SO-20
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 automative, etc.
The high gain and high output power capability provide superior performance whatever an operational
amplifier/power booster combination is required.
PIN CONNECTION (top view)
October 1998
This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
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L2726
BLOCK DIAGRAM
SCHEMATIC DIAGRAM (one section)
ABSOLUTE MAXIMUM RATINGS
Symbol
Vs
Vs
Vi
Vi
IO
Ip
Ptot
Top
Tstg, Tj
Parameter
Supply Voltage
Peak Supply Voltage (50ms)
Input Voltage
Differential Input Voltage
DC Output Current
Peak Output Current (non repetitive)
Power Dissipation at
Tamb = 85oC
Tcase = 75oC
Operating Temperature
Storage and Junction Temperature
Value
28
50
Vs
± Vs
1
1.5
1
5
– 40 to 85
– 40 to 150
Unit
V
V
A
A
W
o
o
C
C
THERMAL DATA
Rth j-case
Thermal Resistance Junction-case
Max.
15.0
o
Rth j-amb
Thermal Resistance Junction-ambient (*)
Max.
65
o
(*) With 4 sq. cm copper area heatsink.
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C/W
C/W
L2726
ELECTRICAL CHARACTERISTICS
Vs = 24V, Tamb = 25oC unless otherwise specified
Symbol
Parameter
Vs
Single Supply Voltage
Vs
Split Supply Voltage
Is
Quiescent Drain Current
Ib
Input Bias Current
Test Conditions
Vo =
Vs
2
Min.
Typ.
Max.
Unit
4
28
V
±2
± 14
V
mA
Vs = 24V
Vs = 24V
10
15
9
15
0.2
1
µA
mV
Vos
Input Offset Voltage
10
Ios
Input Offset Current
100
SR
Slew Rate
B
Gain-bandwidth Product
Ri
Input Resistance
Gv
O. L. Voltage Gain
eN
Input Noise Voltage
IN
Input Noise Voltage
V/µs
1.2
MHz
500
f = 100Hz
f = 1kHz
70
kΩ
80
60
dB
10
µV
200
pA
66
84
dB
60
70
75
80
dB
dB
dB
B = 22Hz to 22kHz
CMR
Common Mode Rejection
f = 1kHz
SVR
Supply Voltage Rejection
f = 100Hz
RG = 10kΩ
VR = 0.5V
Vs = 24V
Vs = ±12V
Vs = ±6V
Vs = ±2.5V to ±12V
Ip = 100mA
Ip = 500mA
0.7
1
1.5
Vs = ±2.5V to ±12V
Ip = 100mA
Ip = 500mA
0.3
0.5
1
f = 1KHz
RL = 10Ω
Gv = 30dB
Vs = 24V
Vs = 6V
60
60
VDROP(HIGH)
VDROP(LOW)
Cs
Channel Separation
Tsd
Thermal Shutdown Junction
Temperature
Figure 1 : Quiescent Current vs. Supply Voltage
nA
2
V
V
150
dB
o
C
Figure 2 : Open Loop Gain vs. Frequency
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L2726
Figure 3 : Common Mode Rejection Frequency
Figure 5 : Output Swing vs. Load Current
(Vs = ± 12 V)
Figure 7 : Channel Separation vs. Frequency.
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Figure 4 : Output Swing vs. Load Current
(Vs = ± 5V)
Figure 6 : Supply Voltage Rejection vs.
Frequency
L2726
mm
inch
OUTLINE AND
MECHANICAL DATA
DIM.
MIN.
TYP.
MAX.
MIN.
TYP.
MAX.
A
2.35
2.65
0.093
0.104
A1
0.1
0.3
0.004
0.012
B
0.33
0.51
0.013
0.020
C
0.23
0.32
0.009
0.013
D
12.6
13
0.496
0.512
E
7.4
7.6
0.291
0.299
e
1.27
0.050
H
10
10.65
0.394
0.419
h
0.25
0.75
0.010
0.030
L
0.4
1.27
0.016
0.050
SO20
K
0˚ (min.)8˚ (max.)
L
h x 45
A
B
e
A1
K
C
H
D
20
11
E
1
10
SO20MEC
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L2726
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No
license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this
publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written
approval of STMicroelectronics.
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© 1998 STMicroelectronics – Printed in Italy – All Rights Reserved
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