µA741, µA741Y
GENERAL-PURPOSE OPERATIONAL AMPLIFIERS
SLOS094A – NOVEMBER 1970 – REVISED JANUARY 1992
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
D
Short-Circuit Protection
D
Offset-Voltage Null Capability
D
Large Common-Mode and Differential
Voltage Ranges
D
No Frequency Compensation Required
D
Low Power Consumption
D
No Latch-Up
D
Designed to Be Interchangeable With
Fairchild µA741
description
The µA741 is a general-purpose operational
amplifier featuring offset-voltage null capability.
The high common-mode input voltage range and
the absence of latch-up make the amplifier ideal
for voltage-follower applications. The device is
short-circuit protected and the internal frequency
compensation ensures stability without external
components. A low value potentiometer may be
connected between the offset null inputs to null
out the offset voltage as shown in Figure 2.
The µA741C is characterized for operation from
0°C to 70°C. The µA741I is characterized for
operation from – 40°C to 85°C.The µA741M is
characterized for operation over the full military
temperature range of –55°C to 125°C.
symbol
IN +
IN –
OUT
+
–
OFFSET N1
OFFSET N2
Copyright 1992, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
1
2
3
4
5
6
7
14
13
12
11
10
9
8
NC
NC
OFFSET N1
IN–
IN+
V
CC
–
NC
NC
NC
NC
V
CC+
OUT
OFFSET N2
NC
µA741M ...J PACKAGE
(TOP VIEW)
1
2
3
4
8
7
6
5
OFFSET N1
IN–
IN+
V
CC–
NC
V
CC+
OUT
OFFSET N2
µA741M ...JG PACKAGE
µA741C, µA741I . . . D, P, OR PW PACKAGE
(TOP VIEW)
1
2
3
4
5
10
9
8
7
6
NC
OFFSET N1
IN–
IN+
V
CC–
NC
NC
V
CC+
OUT
OFFSET N2
µA741M ...U PACKAGE
(TOP VIEW)
3 2 1 20 19
910111213
4
5
6
7
8
18
17
16
15
14
NC
V
CC+
NC
OUT
NC
NC
IN–
NC
IN+
NC
µA741M . . . FK PACKAGE
(TOP VIEW)
NC
OFFSET N1
NC
OFFSET N2
NC
NC
NC
NC
V
NC
CC–
NC – No internal connection
µA741, µA741Y
GENERAL-PURPOSE OPERATIONAL AMPLIFIERS
SLOS094A – NOVEMBER 1970 – REVISED JANUARY 1992
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
AVAILABLE OPTIONS
PACKAGED DEVICES
T
A
SMALL
OUTLINE
(D)
CHIP
CARRIER
(FK)
CERAMIC
DIP
(J)
CERAMIC
DIP
(JG)
PLASTIC
DIP
(P)
TSSOP
(PW)
FLAT
PACK
(U)
CHIP
FORM
(Y)
0°C to 70°C uA741CD uA741CP uA741CPW uA741Y
–40°C to 85°C uA741ID uA741IP
–55°C to 125°C uA741MFK uA741MJ uA741MJG uA741MU
The D package is available taped and reeled. Add the suffix R (e.g., uA741CDR).
schematic
IN–
IN+
V
CC+
V
CC–
OUT
OFFSET N1
OFFSET N2
Transistors 22
Resistors 11
Diode 1
Capacitor 1
Component Count
µA741, µA741Y
GENERAL-PURPOSE OPERATIONAL AMPLIFIERS
SLOS094A – NOVEMBER 1970 – REVISED JANUARY 1992
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
µA741Y chip information
This chip, when properly assembled, displays characteristics similar to the µA741C. Thermal compression or
ultrasonic bonding may be used on the doped-aluminum bonding pads. Chips may be mounted with conductive
epoxy or a gold-silicon preform.
BONDING PAD ASSIGNMENTS
CHIP THICKNESS: 15 TYPICAL
BONDING PADS: 4 × 4 MINIMUM
TJmax = 150°C.
TOLERANCES ARE ±10%.
ALL DIMENSIONS ARE IN MILS.
+
–
OUT
IN+
IN–
V
CC+
(7)
(3)
(2)
(6)
(4)
V
CC–
(5)
(1)
OFFSET N2
OFFSET N1
45
36
(1)
(8)
(7) (6)
(5)
(4)
(3)(2)
µA741, µA741Y
GENERAL-PURPOSE OPERATIONAL AMPLIFIERS
SLOS094A – NOVEMBER 1970 – REVISED JANUARY 1992
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
µA741C µA741I µA741M UNIT
Supply voltage, V
CC+
(see Note 1) 18 22 22 V
Supply voltage, V
CC–
(see Note 1) –18 –22 –22 V
Differential input voltage, VID (see Note 2) ±15 ±30 ±30 V
Input voltage, VI any input (see Notes 1 and 3) ±15 ±15 ±15 V
Voltage between offset null (either OFFSET N1 or OFFSET N2) and V
CC–
±15 ±0.5 ±0.5 V
Duration of output short circuit (see Note 4) unlimited unlimited unlimited
Continuous total power dissipation See Dissipation Rating Table
Operating free-air temperature range, T
A
0 to 70 –40 to 85 –55 to 125 °C
Storage temperature range –65 to 150 –65 to 150 –65 to 150 °C
Case temperature for 60 seconds FK package 260 °C
Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds J, JG, or U package 300 °C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds D, P, or PW package 260 260 °C
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. All voltage values, unless otherwise noted, are with respect to the midpoint between V
CC+
and V
CC–
.
2. Differential voltages are at IN+ with respect to IN–.
3. The magnitude of the input voltage must never exceed the magnitude of the supply voltage or 15 V, whichever is less.
4. The output may be shorted to ground or either power supply . For the µA741M only , the unlimited duration of the short circuit applies
at (or below) 125°C case temperature or 75°C free-air temperature.
DISSIPATION RATING TABLE
PACKAGE
TA ≤ 25°C
POWER RATING
DERATING
FACTOR
DERATE
ABOVE T
A
TA = 70°C
POWER RATING
TA = 85°C
POWER RATING
TA = 125°C
POWER RATING
D 500 mW 5.8 mW/°C 64°C 464 mW 377 mW N/A
FK 500 mW 11.0 mW/°C 105°C 500 mW 500 mW 275 mW
J 500 mW 11.0 mW/°C 105°C 500 mW 500 mW 275 mW
JG 500 mW 8.4 mW/°C90°C 500 mW 500 mW 210 mW
P 500 mW N/A N/A 500 mW 500 mW N/A
PW 525 mW 4.2 mW/°C25°C 336 mW N/A N/A
U 500 mW 5.4 mW/°C 57°C 432 mW 351 mW 135 mW
µA741, µA741Y
GENERAL-PURPOSE OPERATIONAL AMPLIFIERS
SLOS094A – NOVEMBER 1970 – REVISED JANUARY 1992
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics at specified free-air temperature, V
CC±
= ±15 V (unless otherwise noted)
TEST
µA741C µA741I, µA741M
PARAMETER
CONDITIONS
T
A
†
MIN TYP MAX MIN TYP MAX
UNIT
p
25°C 1 6 1 5
VIOInput offset voltage
V
O
=
0
Full range 7.5 6
mV
∆V
IO(adj)
Offset voltage adjust range VO = 0 25°C ±15 ±15 mV
p
25°C 20 200 20 200
IIOInput offset current
V
O
=
0
Full range 300 500
nA
p
25°C 80 500 80 500
IIBInput bias current
V
O
=
0
Full range 800 1500
nA
Common-mode input
25°C ±12 ±13 ±12 ±13
V
ICR
voltage range
Full range ±12 ±12
V
RL = 10 kΩ 25°C ±12 ±14 ±12 ±14
Maximum peak output
RL ≥ 10 kΩ
Full range ±12 ±12
V
OM
voltage swing
RL = 2 kΩ
25°C ±10 ±13 ±10 ±13
V
RL ≥ 2 kΩ Full range ±10 ±10
Large-signal differential
RL ≥ 2 kΩ 25°C 20 200 50 200
A
VD
gg
voltage amplification
VO = ±10 V
Full range 15 25
V/mV
r
i
Input resistance 25°C 0.3 2 0.3 2 MΩ
r
o
Output resistance VO = 0, See Note 5 25°C 75 75 Ω
C
i
Input capacitance 25°C 1.4 1.4 pF
Common-mode rejection
25°C 70 90 70 90
CMRR
j
ratio
V
IC
=
V
ICR
min
Full range 70 70
dB
Supply voltage sensitivity
25°C 30 150 30 150
k
SVS
yg y
(∆VIO/∆VCC)
V
CC
= ±9 V to
±15 V
Full range 150 150
µ
V/V
I
OS
Short-circuit output current 25°C ±25 ±40 ±25 ±40 mA
pp
25°C 1.7 2.8 1.7 2.8
ICCSupply current
V
O
= 0,No
load
Full range 3.3 3.3
mA
p
p
25°C 50 85 50 85
PDTotal power dissipation
V
O
=
0
,No
load
Full range 100 100
mW
†
All characteristics are measured under open-loop conditions with zero common-mode input voltage unless otherwise specified. Full range for
the µA741C is 0°C to 70°C, the µA741I is –40°C to 85°C, and the µA741M is –55°C to 125°C.
NOTE 5: This typical value applies only at frequencies above a few hundred hertz because of the effects of drift and thermal feedback.
operating characteristics, V
CC±
= ±15 V, TA = 25°C
µA741C µA741I, µA741M
PARAMETER
TEST CONDITIONS
MIN TYP MAX MIN TYP MAX
UNIT
t
r
Rise time
V
= 20 mV, R
= 2 kΩ,
0.3 0.3 µs
Overshoot factor
I
,
CL = 100 pF,
L
,
See Figure 1
5% 5%
SR Slew rate at unity gain
VI = 10 V,
CL = 100 pF,
RL = 2 kΩ,
See Figure 1
0.5 0.5 V/µs
µA741, µA741Y
GENERAL-PURPOSE OPERATIONAL AMPLIFIERS
SLOS094A – NOVEMBER 1970 – REVISED JANUARY 1992
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics at specified free-air temperature, V
CC±
= ±15 V, T
A
= 25°C (unless
otherwise noted)
µA741Y
PARAMETER
TEST CONDITIONS
MIN TYP MAX
UNIT
V
IO
Input offset voltage VO = 0 1 6 mV
∆V
IO(adj)
Offset voltage adjust range VO = 0 ±15 mV
I
IO
Input offset current VO = 0 20 200 nA
I
IB
Input bias current VO = 0 80 500 nA
V
ICR
Common-mode input voltage range ±12 ±13 V
p
p
RL = 10 kΩ ±12 ±14
VOMMaximum peak output voltage swing
RL = 2 kΩ ±10 ±13
V
A
VD
Large-signal differential voltage amplification RL ≥ 2 kΩ 20 200 V/mV
r
i
Input resistance 0.3 2 MΩ
r
o
Output resistance VO = 0, See Note 5 75 Ω
C
i
Input capacitance 1.4 pF
CMRR Common-mode rejection ratio VIC = V
ICR
min 70 90 dB
k
SVS
Supply voltage sensitivity (∆VIO/∆VCC) VCC = ±9 V to ±15 V 30 150 µV/V
I
OS
Short-circuit output current ±25 ±40 mA
I
CC
Supply current VO = 0, No load 1.7 2.8 mA
P
D
Total power dissipation VO = 0, No load 50 85 mW
†
All characteristics are measured under open-loop conditions with zero common-mode voltage unless otherwise specified.
NOTE 5: This typical value applies only at frequencies above a few hundred hertz because of the effects of drift and thermal feedback.
operating characteristics, V
CC
± = ±15 V, T
A
= 25°C
µA741Y
PARAMETER
TEST CONDITIONS
MIN TYP MAX
UNIT
t
r
Rise time
V
= 20 mV, R
= 2 kΩ,
0.3 µs
Overshoot factor
I
,
CL = 100 pF,
L
,
See Figure 1
5%
SR Slew rate at unity gain
VI = 10 V,
CL = 100 pF,
RL = 2 kΩ,
See Figure 1
0.5 V/µs
µA741, µA741Y
GENERAL-PURPOSE OPERATIONAL AMPLIFIERS
SLOS094A – NOVEMBER 1970 – REVISED JANUARY 1992
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
INPUT VOLTAGE
WAVEFDORM
TEST CIRCUIT
RL = 2 kΩ
CL = 100 pF
OUT
IN
+
–
0 V
V
I
Figure 1. Rise Time, Overshoot, and Slew Rate
APPLICATION INFORMATION
Figure 2 shows a diagram for an input offset voltage null circuit.
To V
CC –
OFFSET N1
10 kΩ
OFFSET N2
+
–
OUT
IN+
IN–
Figure 2. Input Offset Voltage Null Circuit
µA741, µA741Y
GENERAL-PURPOSE OPERATIONAL AMPLIFIERS
SLOS094A – NOVEMBER 1970 – REVISED JANUARY 1992
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
†
Figure 3
I
TA – Free-Air Temperature – °C
12080400–40
20
INPUT OFFSET CURRENT
vs
FREE-AIR TEMPERATURE
IO
– Input Offset Current – nA
V
CC–
= –15 V
V
CC+
= 15 V
90
70
50
30
10
0
40
60
80
100
–60 –20 20 60 100 140
Figure 4
400
300
200
100
0
0 40 80 120
TA – Free-Air Temperature – °C
I
INPUT BIAS CURRENT
vs
FREE-AIR TEMPERATURE
IB
– Input Bias Current – nA
V
CC–
= –15 V
V
CC+
= 15 V
350
250
150
50
–40– 60 –20 20 60 100 140
V
RL – Load Resistance – kΩ
1074210.70.40.20.1
±4
±5
±6
±7
±8
±9
±10
±11
±12
±13
±14
MAXIMUM PEAK OUTPUT VOLTAGE
vs
LOAD RESISTANCE
V
CC+
= 15 V
V
CC–
= –15 V
TA = 25°C
OM
– Maximum Peak Output Voltage – V
Figure 5
†
Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
µA741, µA741Y
GENERAL-PURPOSE OPERATIONAL AMPLIFIERS
SLOS094A – NOVEMBER 1970 – REVISED JANUARY 1992
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 6
V
±20
f – Frequency – H
z
1 M100 k10 k1 k
MAXIMUM PEAK OUTPUT VOLTAGE
vs
FREQUENCY
OM
– Maximum Peak Output Voltage – V
±18
±16
±14
±12
±10
±8
±6
±4
±2
0
V
CC+
= 15 V
V
CC–
= –15 V
RL = 10 kΩ
TA = 25°C
Figure 7
2018161412108642
400
200
100
40
20
10
0
V
CC±
– Supply Voltage – V
OPEN-LOOP SIGNAL DIFFERENTIAL
VOLTAGE AMPLIFICATION
vs
SUPPLY VOLTAGE
VO = ±10 V
RL = 2 kΩ
TA = 25°C
A
VD
– Open-Loop Signal Differential
Voltage Amplification – V/mV
f – Frequency – H
z
10 M1 M10 k1001
10
–1
1
10
1
10
2
10
3
10
4
10
5
10
6
10
7
OPEN-LOOP LARGE-SIGNAL DIFFERENTIAL
VOLTAGE AMPLIFICATION
vs
FREQUENCY
V
CC+
= 15 V
V
CC–
= –15 V
VO = ±10 V
RL = 2 kΩ
TA = 25°C
A
VD
– Open-Loop Signal Differential
Voltage Amplification – dB
Figure 8
µA741, µA741Y
GENERAL-PURPOSE OPERATIONAL AMPLIFIERS
SLOS094A – NOVEMBER 1970 – REVISED JANUARY 1992
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 9
CMRR – Common-Mode Rejection Ratio – dB
f – Frequency – Hz
10 k 1 M 100 M1001
0
10
20
30
40
50
60
70
80
90
100
COMMON-MODE REJECTION RATIO
vs
FREQUENCY
V
CC+
= 15 V
V
CC–
= –15 V
BS = 10 kΩ
TA = 25°C
Figure 10
10%
t
r
2.521.510.50
28
24
20
16
12
8
4
0
– Output Voltage – mV
t – Time ± µs
–4
OUTPUT VOLTAGE
vs
ELAPSED TIME
V
O
90%
V
CC+
= 15 V
V
CC–
= –15 V
RL = 2 kΩ
CL = 100 pF
TA = 25°C
8
6
4
2
0
–2
–4
–6
9080706050403020100
Input and Output Voltage – V
t – Time – µs
–8
VOLTAGE-FOLLOWER
LARGE-SIGNAL PULSE RESPONSE
V
O
V
I
V
CC+
= 15 V
V
CC–
= –15 V
RL = 2 kΩ
CL = 100 pF
TA = 25°C
Figure 11
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accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
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