A741,
A741Y
GENERAL-PURPOSE OPERATIONAL AMPLIFIERS
SLOS094B NOVEMBER 1970 REVISED SEPTEMBER 2000
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
A741
description
The
A741 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
A741C is characterized for operation from
0
C to 70
C. The
A741I is characterized for
operation from 40
C to 85
C.The
A741M 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
2000, 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
A741M . . . J PACKAGE
(TOP VIEW)
1
2
3
4
8
7
6
5
OFFSET N1
IN
IN +
V
CC
NC
V
CC+
OUT
OFFSET N2
A741M . . . JG PACKAGE
A741C,
A741I . . . 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
A741M . . . U PACKAGE
(TOP VIEW)
3
2
1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
NC
V
CC +
NC
OUT
NC
NC
IN
NC
IN +
NC
A741M . . . FK PACKAGE
(TOP VIEW)
NC
OFFSET
N1
NC
OFFSET
N2
NC
NC
NC
NC
V
NC
CC
NC No internal connection
A741,
A741Y
GENERAL-PURPOSE OPERATIONAL AMPLIFIERS
SLOS094B NOVEMBER 1970 REVISED SEPTEMBER 2000
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
AVAILABLE OPTIONS
PACKAGED DEVICES
CHIP
TA
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
A741CD
A741CP
A741CPW
A741Y
40
C to 85
C
A741ID
A741IP
55
C to 125
C
A741MFK
A741MJ
A741MJG
A741MU
The D package is available taped and reeled. Add the suffix R (e.g.,
A741CDR).
schematic
IN
IN+
VCC+
VCC
OUT
OFFSET N1
OFFSET N2
Transistors
22
Resistors
11
Diode
1
Capacitor
1
Component Count
A741,
A741Y
GENERAL-PURPOSE OPERATIONAL AMPLIFIERS
SLOS094B NOVEMBER 1970 REVISED SEPTEMBER 2000
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
A741Y chip information
This chip, when properly assembled, displays characteristics similar to the
A741C. 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
VCC+
(7)
(3)
(2)
(6)
(4)
VCC
(5)
(1)
OFFSET N2
OFFSET N1
45
36
(1)
(8)
(7)
(6)
(5)
(4)
(3)
(2)
A741,
A741Y
GENERAL-PURPOSE OPERATIONAL AMPLIFIERS
SLOS094B NOVEMBER 1970 REVISED SEPTEMBER 2000
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
A741C
A741I
A741M
UNIT
Supply voltage, VCC+ (see Note 1)
18
22
22
V
Supply voltage, VCC (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 VCC
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, TA
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 VCC+ and VCC .
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
A741M 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 TA
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/
C
90
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/
C
25
C
336 mW
N/A
N/A
U
500 mW
5.4 mW/
C
57
C
432 mW
351 mW
135 mW
A741,
A741Y
GENERAL-PURPOSE OPERATIONAL AMPLIFIERS
SLOS094B NOVEMBER 1970 REVISED SEPTEMBER 2000
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics at specified free-air temperature, V
CC
=
15 V (unless otherwise noted)
PARAMETER
TEST
TA
A741C
A741I,
A741M
UNIT
PARAMETER
CONDITIONS
TA
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
VIO
Input offset voltage
VO = 0
25
C
1
6
1
5
mV
VIO
Input offset voltage
VO = 0
Full range
7.5
6
mV
VIO(adj)
Offset voltage adjust range
VO = 0
25
C
15
15
mV
IIO
Input offset current
VO = 0
25
C
20
200
20
200
nA
IIO
Input offset current
VO = 0
Full range
300
500
nA
IIB
Input bias current
VO = 0
25
C
80
500
80
500
nA
IIB
Input bias current
VO = 0
Full range
800
1500
nA
VICR
Common-mode input
25
C
12
13
12
13
V
VICR
voltage range
Full range
12
12
V
RL = 10 k
25
C
12
14
12
14
VOM
Maximum peak output
RL
10 k
Full range
12
12
V
VOM
voltage swing
RL = 2 k
25
C
10
13
10
13
V
RL
2 k
Full range
10
10
AVD
Large-signal differential
RL
2 k
25
C
20
200
50
200
V/mV
AVD
g
g
voltage amplification
VO =
10 V
Full range
15
25
V/mV
ri
Input resistance
25
C
0.3
2
0.3
2
M
ro
Output resistance
VO = 0, See Note 5
25
C
75
75
Ci
Input capacitance
25
C
1.4
1.4
pF
CMRR
Common-mode rejection
VIC = VICRmin
25
C
70
90
70
90
dB
CMRR
j
ratio
VIC = VICRmin
Full range
70
70
dB
kSVS
Supply voltage sensitivity
VCC =
9 V to
15 V
25
C
30
150
30
150
V/V
kSVS
y
g
y
(
VIO /
VCC)
VCC =
9 V to
15 V
Full range
150
150
V/V
IOS
Short-circuit output current
25
C
25
40
25
40
mA
ICC
Supply current
VO = 0
No load
25
C
1.7
2.8
1.7
2.8
mA
ICC
Supply current
VO = 0, No load
Full range
3.3
3.3
mA
PD
Total power dissipation
VO = 0
No load
25
C
50
85
50
85
mW
PD
Total power dissipation
VO = 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
A741C is 0
C to 70
C, the
A741I is 40
C to 85
C, and the
A741M 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, T
A
= 25
C
PARAMETER
TEST CONDITIONS
A741C
A741I,
A741M
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
tr
Rise time
VI = 20 mV,
RL = 2 k
,
0.3
0.3
s
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 k
,
See Figure 1
0.5
0.5
V/
s
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