V
Max
查询UA747供应商
uA747C, uA747M
DUAL GENERAL-PURPOSE OPERATIONAL AMPLIFIERS
SLOS009A – D971, FEBRUARY 1971 – REVISED OCTOBER 1990
• 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
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.
OFFSET 1N2
OFFSET 2N2
OFFSET 1N2
NC
V
CC –
NC
OFFSET 2N2
D, J, N, OR W PACKAGE
(TOP VIEW)
IN –
1
IN +
2
3
V
uA747m ...FK PACKAGE
CC –
IN +
IN –
4
5
6
7
(TOP VIEW)
OFFSET 1N1
14
1 V
13
OUT
12
NC
11
OUT
10
2 V
9
OFFSET 2N1
8
†
CC+
IN +
IN –NCOFFSET 1N1
3 2 1 20 19
4
5
6
7
8
910111213
1 V
18
17
16
15
14
†
NC
IN –
IN +
CC+
2 V
CC +
CC +
OUT
NC
NC
NC
OUT
†
†
symbol (each amplifier)
IN+
IN–
OFFSET N1 OFFSET N2
T
A
0°C
to
70°C
–55°C
to
125°C
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.
+
–
IO
AT 25°C
6 mV uA747CD — uA747CN — —
5 mV — uA747MJ — uA747MW uA747MFK
SMALL OUTLINE
(D)
OUT
NC – No internal connection
†
The two positive supply terminals (1 V
connected together internally.
AVAILABLE OPTIONS
PACKAGE
14-PIN 20-PIN
CERAMIC DIP
(J)
PLASTIC DIP
(N)
OFFSET 2N1
and 2 V
CC +
FLAT PACK
(W)
Copyright 1990, Texas Instruments Incorporated
CHIP CARRIER
(FK)
CC +
) are
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
1
uA747C, uA747M
DUAL GENERAL-PURPOSE OPERATIONAL AMPLIFIERS
SLOS009A – D971, FEBRUAR Y 1971 – REVISED OCT OBER 1990
schematic (each amplifier)
IN –
V
CC+
IN +
OFFSET N2
OFFSET N1
OUT
V
CC–
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
uA747C uA747M UNIT
Supply voltage, V
Supply voltage, V
Differential input voltage (see Note 2) ±30 ±30 V
Input voltage any input (see Notes 1 and 3) ±15 ±15 V
Voltage between any offset null terminal (N1/N2) and V
Duration of output short circuit (see Note 4) unlimited unlimited
Continuous total dissipation See Dissipation Rating Table
Operating free-air temperature range 0 to 70 –55 to 125 °C
Storage temperature range –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 or W package 300 °C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds D or N package 260 °C
NOTES: 1. All voltage values, unless otherwise noted, are with respect to the midpoint between V
2. Differential voltages are at the noninverting input terminal with respect to the inverting input terminal.
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 uA747M only, the unlimited duration of the short circuit applies
at (or below) 125°C case temperature or 75°C free-air temperature.
(see Note 1) 18 22 V
CC+
(see Note 1) –18 –22 V
CC–
CC–
±0.5 ±0.5 V
CC +
and V
CC –
.
DISSIPATION RATING TABLE
PACKAGE
D 800 mW 7.6 mW/°C 45°C 608 mW —
FK 800 mW 11.0 mW/°C77°C 800 mW 275 mW
J 800 mW 11.0 mW/°C77°C 800 mW 275 mW
N 800 mW 9.2 mW/°C63°C 736 mW —
W 800 mW 8.0 mW/°C 50°C 640 mW 200 mW
2
TA ≤ 25°C
POWER RATING
DERATING
FACTOR
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
DERATE
ABOVE T
A
TA = 70°C
POWER RATING
TA = 125°C
POWER RATING
uA747C, uA747M
PARAMETER
TEST CONDITIONS
†
T
‡
UNIT
VIOInput offset voltage
V
0
mV
IIOInput offset current
nA
IIBInput bias current
nA
V
V
V
V
A
V/mV
CMRR
V
V
dB
k
sensitivity
V
± 9 V to ± 15 V
V/V
I
y
No load
mA
P
No load
V
0
mW
V
20 mV
R
2 kΩ
C
100 pF, See Figure 1
DUAL GENERAL-PURPOSE OPERATIONAL AMPLIFIERS
SLOS009A – D971, FEBRUAR Y 1971 – REVISED OCT OBER 1990
electrical characteristics at specified free-air temperature, V
A
p
∆V
IO(adj)
ICR
O(PP)
VD
r
i
r
o
C
i
SVS
I
OS
CC
D
Vo1/V
†
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.
Offset voltage
adjust range
p
p
Common-mode 25°C ±12 ±13 ±12 ±13
input voltage range Full range ±12 ±12
Maximum peak-to-peak RL ≥ 10 kΩ Full range 24 24
output voltage swing RL= 2 kΩ 25°C 20 26 20 26
Large-signal differential RL ≥ 2 kΩ, 25°C 25 200 50 200
voltage amplification VO = ± 10 V Full range 15 25
Input resistance 25°C 0.3 2 0.3* 2 MΩ
Output resistance See Note 5 25°C 75 75 Ω
Input capacitance 25°C 1.4 1.4 pF
Common-mode
rejection ratio
Supply-voltage
(∆VIO/ ∆VCC)
Short-circuit
output current
Supply current
(each amplifier)
Power dissipation
(each amplifier)
Channel separation 25°C 120 120 0 dB
o2
=
O
RL= 10 kΩ 25°C 24 28 24 28
RL ≥ 2 kΩ Full range 20 20
=
IC
ICR
=
CC
,
=
O
25°C 1 6 1 5
Full range 7.5 6
25°C ±15 ±15 mV
25°C 20 200 20 200
Full range 300 500
25°C 80 500 80 500
Full range 800 1500
25°C 70 90 70 90
Full range 70 70
25°C
Full range
25°C ±25 ±40 ±25 ±40 mA
25°C 1.7 2.8 1.7 2.8
Full range 3.3 3.3
25°C 50 85 50 85
Full range 100 100
MIN TYP MAX MIN TYP MAX
= ±15 V
CC±
uA747C uA747M
30 150 30 150
150 150
µ
operating characteristics, V
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
t
Rise time
r
Overshoot factor
SR Slew rate at unity gain VI = 10 mV, RL = 2 kΩ, CL = 100 pF, See Figure 1 0.5 V/µs
= ± 15 V, TA = 25°C
CC ±
=
I
,
=
L
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
,
p
=
L
0.3 µs
5%
3
uA747C, uA747M
DUAL GENERAL-PURPOSE OPERATIONAL AMPLIFIERS
SLOS009A – D971, FEBRUAR Y 1971 – REVISED OCT OBER 1990
PARAMETER MEASUREMENT INFORMATION
V
I
Input
0 V
INPUT VOLTAGE
WAVEFORM
TEST CIRCUIT
Figure 1. Rise Time, Overshoot, and Slew Rate
APPLICATION INFORMATION
–
+
CL = 100 pF
OUT
RL = 2 kΩ
IN –
IN +
OFFSET N1
–
+
10 kΩ
To V
OUT
OFFSET N2
CC –
Figure 2. Input Offset Voltage Null Circuit
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
uA747C, uA747M
DUAL GENERAL-PURPOSE OPERATIONAL AMPLIFIERS
SLOS009A – D971, FEBRUAR Y 1971 – REVISED OCT OBER 1990
TYPICAL CHARACTERISTICS
INPUT OFFSET CURRENT
FREE-AIR TEMPERATURE
100
90
80
70
60
50
40
30
IO
IIO – Input Offset Current – nA
I
20
10
0
–60
–40 –20 0 20 40 60 80 100 120
TA – Free-Air Temperature – C
uA747C
Figure 3
vs
V
CC ±
†
= ± 15 V
140
INPUT BIAS CURRENT
FREE-AIR TEMPERATURE
400
350
300
250
200
150
IB
100
I
IIB – Input Bias Current – nA
50
0
–60
–40 –20 0 20 40 60 80 100 120
TA – Free-Air Temperature – C
Figure 4
vs
uA747C
V
CC ±
= ± 15 V
140
†
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
5
uA747C, uA747M
DUAL GENERAL-PURPOSE OPERATIONAL AMPLIFIERS
SLOS009A – D971, FEBRUAR Y 1971 – REVISED OCT OBER 1990
TYPICAL CHARACTERISTICS
28
26
24
22
20
18
16
14
12
10
CC
V
VCC – Maximum Peak-to-Peak Output Voltage – V
8
0.1
MAXIMUM PEAK-TO-PEAK
OUTPUT VOLTAGE
vs
LOAD RESISTANCE
V
= ± 15 V
CC ±
TA = 25°C
0.2 0.4 0.7 1 2 4 7
RL – Load Resistance – kΩ
Figure 5 Figure 6
10
40
36
32
28
24
20
16
12
8
4
VCC – Maximum Peak-to-Peak Output Voltage – V
O(PP)
0
V
100
MAXIMUM PEAK-TO-PEAK
OUTPUT VOLTAGE
vs
FREQUENCY
V
CC±
RL = 10 kΩ
TA = 25°C
1 k 10 k 100 k
f – Frequency – Hz
= ± 15 V
1 M
400
200
100
40
20
VD
AVD – Differential Voltage Amplification V/mV
A
10
OPEN-LOOP LARGE-SIGNAL
DIFFERENTIAL
VOLTAGE AMPLIFICATION
vs
SUPPLY VOLTAGE
RL = 2 kΩ
TA = 25°C
0
2 4 6 8 10 12 14 16 18
|V
| – Supply Voltage – V
CC±
Figure 7 Figure 8
20
7
10
6
10
5
10
4
10
3
10
2
10
1
10
VD
AVD – Differential Voltage Amplification
1
A
10–1
1
OPEN-LOOP LARGE-SIGNAL
DIFFERENTIAL
VOLTAGE AMPLIFICATION
vs
FREQUENCY
V
= ± 15 V
CC ±
RL = 2 kΩ
TA = 25°C
10 100 1 k 10 k 100 k 1 M 10 M
f – Frequency – Hz
100 M
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
uA747C, uA747M
DUAL GENERAL-PURPOSE OPERATIONAL AMPLIFIERS
SLOS009A – D971, FEBRUAR Y 1971 – REVISED OCT OBER 1990
TYPICAL CHARACTERISTICS
COMMON-MODE REJECTION RATIO
vs
FREQUENCY
100
90
80
70
60
50
40
30
20
10
CMRR – Common-Mode Rejection Ratio – dB
0
1
10 100 1 k 10 k 100 k 1 M 10 M
f – Frequency – Hz
V
RS = 50 Ω
TA = 25°C
Figure 9 Figure 10
LARGE-SIGNAL PULSE RESPONSE
8
6
4
2
= ± 15 V
CC±
100 M
VOLTAGE-FOLLOWER
Output
O
V
VO – Output Voltage – mV
28
24
20
16
12
8
4
10%
0
–4
V
= ± 15 V
CC ±
RL = 2 kΩ
CL = 100 pF
TA = 25°C
OUTPUT VOLTAGE
vs
ELAPSED TIME
90%
V
CC ±
RL = 2 kΩ
CL = 100 pF
TA = 25°C
t
r
0 0.5 1 1.5 2
t – Time – µs
= ± 15 V
2.5
0
–2
–4
Input and Output Voltages – V
–6
–8
Input
0 10 20 30 40 50 60 70 80
t – Time – µs
Figure 11
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
90
7
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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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Copyright 1998, Texas Instruments Incorporated
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