uA747C, uA747M
DUAL GENERAL PURPOSE OPERATIONAL AMPLIFIERS
SLOS009A − D971, FEBRUARY 1971 − REVISED OCTOBER 1990
•
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•
•
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No Frequency Compensation Required
Low Power Consumption
Short-Circuit Protection
Offset-Voltage Null Capability
Wide Common-Mode and Differential
Voltage Ranges
No Latch-Up
Designed to Be Interchangeable With
Fairchild
µA747C
and
µA747M
D, J, N, OR W PACKAGE
(TOP VIEW)
IN −
IN +
OFFSET 1N2
V
CC −
OFFSET 2N2
IN +
IN −
1
2
3
4
5
6
7
14
13
12
11
10
9
8
OFFSET 1N1
1 V
CC +†
OUT
NC
OUT
2 V
CC +†
OFFSET 2N1
description
The uA747 is a dual general-purpose operational
amplifier featuring offset-voltage null capability.
Each half is electrically similar to uA741.
The high common-mode input voltage range and
the absence of latch-up make this 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 uA747C is characterized for operation from
0
°
C to 70
°
C; the uA747M is characterized for
operation over the full military temperature range
of −55
°
C to 125
°
C.
uA747m . . . FK PACKAGE
(TOP VIEW)
OFFSET 1N2
NC
V
CC −
NC
OFFSET 2N2
4
5
6
7
8
3 2 1 20 19
18
17
16
15
14
9 10 11 12 13
IN +
IN −
NC
OFFSET 1N1
1 V CC +†
OUT
NC
NC
NC
OUT
NC − No internal connection
† The two positive supply terminals (1 VCC + and 2 VCC +) are
connected together internally.
PACKAGE
14-PIN
symbol (each amplifier)
IN+
IN −
+
OUT
−
OFFSET N1
OFFSET N2
AVAILABLE OPTIONS
20-PIN
PLASTIC DIP
(N)
FLAT PACK
(W)
CHIP CARRIER
(FK)
TA
0°C
to
70°C
−55°C
to
125°C
VIO Max
AT 25°C
SMALL OUTLINE
(D)
CERAMIC DIP
(J)
6 mV
uA747CD
—
uA747CN
IN +
IN −
NC
OFFSET 2N1
2 V CC +†
—
—
—
uA747MW
uA747MFK
Copyright
1990, Texas Instruments Incorporated
5 mV
The D package is available taped and reeled. Add the suffix R to the device type, (i.e., uA747CDR).
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.
ÏÏÏ
ÏÏÏ
ÏÏÏ
ÏÏÏ
—
uA747MJ
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 77001
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1
uA747C, uA747M
DUAL GENERAL PURPOSE OPERATIONAL AMPLIFIERS
SLOS009A − D971, FEBRUARY 1971 − REVISED OCTOBER 1990
schematic (each amplifier)
VCC +
IN −
OUT
IN +
OFFSET N2
OFFSET N1
VCC −
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
uA747C
Supply voltage, VCC + (see Note 1)
Supply voltage, VCC − (see Note 1)
Differential input voltage (see Note 2)
Input voltage any input (see Notes 1 and 3)
Voltage between any offset null terminal (N1/N2) and VCC −
Duration of output short circuit (see Note 4)
Continuous total dissipation
Operating free-air temperature range
Storage temperature range
Case temperature for 60 seconds
Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
NOTES: 1.
2.
3.
4.
FK package
J or W package
D or N package
260
18
−18
±
30
±
15
±
0.5
unlimited
0 to 70
−65 to 150
uA747M
22
−22
±
30
±
15
±
0.5
unlimited
−55 to 125
−65 to 150
260
300
°C
°C
°C
°C
°C
UNIT
V
V
V
V
V
See Dissipation Rating Table
All voltage values, unless otherwise noted, are with respect to the midpoint between VCC + and VCC −.
Differential voltages are at the noninverting input terminal with respect to the inverting input terminal.
The magnitude of the input voltage must never exceed the magnitude of the supply voltage or 15 V, whichever is less.
The output may be shorted to ground or either power supply. For the uA747M 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
D
FK
J
N
W
TA
≤
25°C
POWER RATING
800 mW
800 mW
800 mW
800 mW
800 mW
DERATING
FACTOR
7.6 mW/°C
11.0 mW/°C
11.0 mW/°C
9.2 mW/°C
8.0 mW/°C
DERATE
ABOVE TA
45°C
77°C
77°C
63°C
50°C
TA = 70°C
POWER RATING
608 mW
800 mW
800 mW
736 mW
640 mW
TA = 125°C
POWER RATING
—
275 mW
275 mW
—
200 mW
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 77001
•
•
uA747C, uA747M
DUAL GENERAL PURPOSE OPERATIONAL AMPLIFIERS
SLOS009A − D971, FEBRUARY 1971 − REVISED OCTOBER 1990
electrical characteristics at specified free-air temperature, V
CC±
=
±15
V
PARAMETER
VIO
∆V
IO(adj)
IIO
IIB
VICR
Input offset voltage
Offset voltage
adjust range
Input offset current
Input bias current
Common-mode
input voltage range
RL= 10 kΩ
VO(PP)
Maximum peak-to-peak
output voltage swing
Large-signal differential
voltage amplification
Input resistance
Output resistance
Input capacitance
Common-mode
rejection ratio
Supply-voltage
sensitivity
(∆VIO /
∆V
CC)
Short-circuit
output current
Supply current
(each amplifier)
Power dissipation
(each amplifier)
No load
No load,
VO = 0
VIC = VICR
VCC =
±
9 V to
±
15 V
See Note 5
RL
≥
10 kΩ
RL= 2 kΩ
RL
≥
2 kΩ
AVD
ri
ro
Ci
CMRR
RL
≥
2 kΩ,
VO =
±
10 V
TEST CONDITIONS†
VO = 0
TA‡
25°C
Full range
25°C
25°C
Full range
25°C
Full range
25°C
Full range
25°C
Full range
25°C
Full range
25°C
Full range
25°C
25°C
25°C
25°C
Full range
25 C
25°C
Full range
25°C
25°C
Full range
25°C
Full range
50
70
70
30
150
150
±
25
1.7
±
40
2.8
3.3
85
100
50
±
25
1.7
±12
±12
24
24
20
20
25
15
0.3
2
75
1.4
90
70
70
30
150
150
±
40
2.8
3.3
85
100
200
26
28
±13
80
±15
20
200
300
500
800
±12
±12
24
24
20
20
50
25
0.3*
2
75
1.4
90
200
V/mV
MΩ
Ω
pF
dB
26
28
V
±13
80
uA747C
MIN
TYP
1
MAX
6
7.5
±15
20
200
500
500
1500
MIN
uA747M
TYP
1
MAX
5
6
UNIT
mV
mV
nA
nA
V
kSVS
IOS
ICC
PD
µV/V
mA
mA
mW
Vo1/Vo2
Channel separation
25°C
120
120
0
dB
† All characteristics are measured under open-loop conditions with zero common-mode input voltage unless otherwise specified.
‡ Full range for uA747C is 0°C to 70°C and for uA747M is − 55°C to 125°C.
*On products compliant to MIL-STD-883, Class B, this parameter is not production tested.
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
tr
SR
Rise time
Overshoot factor
Slew rate at unity gain
TEST CONDITIONS
VI = 20 mV, RL = 2 kΩ, CL = 100 pF, See Figure 1
VI = 10 mV, RL = 2 kΩ, CL = 100 pF, See Figure 1
MIN
TYP
0.3
5%
0.5
V/µs
MAX
UNIT
µs
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 77001
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3
uA747C, uA747M
DUAL GENERAL PURPOSE OPERATIONAL AMPLIFIERS
SLOS009A − D971, FEBRUARY 1971 − REVISED OCTOBER 1990
PARAMETER MEASUREMENT INFORMATION
VI
−
OUT
Input
+
0V
INPUT VOLTAGE
WAVEFORM
CL = 100 pF
RL = 2 kΩ
TEST CIRCUIT
Figure 1. Rise Time, Overshoot, and Slew Rate
APPLICATION INFORMATION
IN −
IN +
−
OUT
+
OFFSET N2
OFFSET N1
10 kΩ
To VCC −
Figure 2. Input Offset Voltage Null Circuit
4
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 77001
•
•
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uA747C, uA747M
DUAL GENERAL PURPOSE OPERATIONAL AMPLIFIERS
SLOS009A − D971, FEBRUARY 1971 − REVISED OCTOBER 1990
TYPICAL CHARACTERISTICS
†
INPUT OFFSET CURRENT
vs
FREE-AIR TEMPERATURE
100
90
I IO − Input Offset Current − nA
IIO
80
70
60
uA747C
50
40
30
20
10
0
−60 −40 −20 0
20 40 60 80 100 120 140
TA − Free-Air Temperature − C
VCC
±
=
±
15 V
Figure 3
INPUT BIAS CURRENT
vs
FREE-AIR TEMPERATURE
400
350
IIB − Input Bias Current − nA
I IB
300
250
uA747C
200
150
100
50
0
−60 −40 −20 0
20 40 60 80 100 120 140
TA − Free-Air Temperature − C
VCC
±
=
±
15 V
Figure 4
† Data at high and low temperatures are applicable only within the rated operating free-air temperature range of the particular devices.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 77001
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