UA741
General-purpose single operational amplifier
Datasheet
-
production data
N
DIP8
(plastic package)
Features
•
Large input voltage range
•
No latch-up
•
High gain
•
Short-circuit protection
•
No frequency compensation required
•
Same pin configuration as the UA709
D
SO8
(plastic micropackage)
Applications
•
Summing amplifiers
•
Voltage followers
•
Integrators
•
Active filters
Pin connections
(top view)
•
Function generators
Description
The UA741 is a high performance monolithic
operational amplifier constructed on a single
silicon chip. It is intended for a wide range of
analog applications.
The high gain and wide range of operating
voltages provide superior performances in
integrators, summing amplifiers and general
feedback applications. The internal compensation
network (6 dB/octave) ensures stability in closed-
loop circuits.
1 - Offset null 1
2 - Inverting input
3 - Non-inverting input
4 - V
CC-
5 - Offset null 2
6 - Output
7 - V
CC+
8 - N.C.
September 2013
This is information on a product in full production.
DocID5304 Rev 3
1/11
www.st.com
Contents
UA741
Contents
1
2
3
4
Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Absolute maximum ratings and operating conditions . . . . . . . . . . . . . 4
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.1
4.2
DIP8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
SO8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5
6
Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2/11
DocID5304 Rev 3
UA741
Schematic diagram
1
Schematic diagram
Figure 1. Schematic diagram
Non-Inverting input
Vcc+
Q8
Q9
Q12
Q13
Inverting
input
Q1
Q2
C1
30pF
R7
4.5kW
Q15
Q14
Q18
Q3
Q4
R5
39kW
R8
7.5kW
R9
25W
Output
R10
50W
Q16
Q7
Q17
Q20
Q5
Q6
Q10
Offset
null 1
Q11 Q22
R3
50kW
R1
1kW
R2
1kW
R4
5kW
R12
50kW
R11
50W
Vcc-
Offset
null 2
DocID5304 Rev 3
3/11
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Absolute maximum ratings and operating conditions
UA741
2
Absolute maximum ratings and operating conditions
Table 1. Absolute maximum ratings
Symbol
V
CC
V
id
V
i
Supply voltage
Differential input voltage
Input voltage
Output short-circuit duration
Thermal resistance junction to ambient
R
thja
DIP8
SO8
Thermal resistance junction to case
R
thjc
DIP8
SO8
HBM: human body model
(1)
DIP package
SO package
MM: machine model
(2)
CDM: charged device model
(3)
T
stg
Storage temperature range
41
40
500
400
100
1.5
-65 to +150
kV
°C
85
125
Parameter
Value
±22
±30
±15
Infinite
V
Unit
°C/W
ESD
V
1. Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a
1.5kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations
while the other pins are floating.
2. Machine model: a 200 pF capacitor is charged to the specified voltage, then discharged directly between
two pins of the device with no external series resistor (internal resistor < 5
Ω).
This is done for all couples of
connected pin combinations while the other pins are floating.
3. Charged device model: all pins and the package are charged together to the specified voltage and then
discharged directly to the ground through only one pin. This is done for all pins.
Table 2. Operating conditions
Symbol
V
CC
V
icm
T
oper
Supply voltage
Common mode input voltage range
Operating free air temperature range
-40 to +105
Parameter
UA741I
5 to 40
±12
0 to +70
UA741C
Unit
V
°C
4/11
DocID5304 Rev 3
UA741
Electrical characteristics
3
Electrical characteristics
Table 3. Electrical characteristics at V
CC
= ±15 V, T
amb
= 25 °C
(unless otherwise specified)
Symbol
V
io
Parameter
Input offset voltage (R
s
≤
10 kΩ)
T
amb
= +25 °C
T
min
≤
T
amb
≤
T
max
Input offset current
T
amb
= +25 °C
T
min
≤
T
amb
≤
T
max
Input bias current
T
amb
= +25 °C
T
min
≤
T
amb
≤
T
max
Large signal voltage gain
(V
o
= ±10 V, R
L
= 2 kΩ)
T
amb
= +25 °C
T
min
≤
T
amb
≤
T
max
Supply voltage rejection ratio (R
s
≤
10 kΩ)
T
amb
= +25 °C
T
min
≤
T
amb
≤
T
max
Supply current, no load
T
amb
= +25 °C
T
min
≤
T
amb
≤
T
max
Input common mode voltage range
T
amb
= +25 °C
T
min
≤
T
amb
≤
T
max
Common mode rejection ratio (R
S
≤
10 kΩ)
T
amb
= +25 °C
T
min
≤
T
amb
≤
T
max
Output short circuit current
Output voltage swing
T
amb
= +25 °C
T
min
≤
T
amb
≤
T
max
R
L
= 10 kΩ
R
L
= 2 kΩ
R
L
= 10 kΩ
R
L
= 2 kΩ
Min.
Typ.
1
Max.
5
6
30
70
100
200
Unit
mV
I
io
2
nA
I
ib
10
A
vd
50
25
77
77
200
V/mV
SVR
90
dB
I
CC
1.7
2.8
3.3
mA
V
icm
±12
±12
70
70
10
12
10
12
10
0.25
90
25
14
13
40
V
CMR
I
OS
dB
mA
±V
opp
V
SR
t
r
K
ov
R
i
Slew rate
V
i
= ±10 V, R
L
= 2 kΩ, C
L
= 100 pF, unity gain
Rise time
V
i
= ±20 mV, R
L
= 2 kΩ, C
L
= 100 pF, unity gain
Overshoot
V
i
= 20 mV, R
L
= 2 kΩ, C
L
= 100 pF, unity gain
Input resistance
0.5
0.3
5
V/μs
μs
%
MΩ
0.3
2
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