Datasheet

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
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SLOS009A − D971, FEBRUARY 1971 − REVISED OCTOBER 1990
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POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443
• HOUSTON, TEXAS 77001
Copyright  1990, Texas Instruments Incorporated
1
• 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.
symbol (each amplifier)
IN+
IN−
OUT
OFFSET N1 OFFSET N2
−
+
AVAILABLE OPTIONS
PACKAGE
V
IO
Max
14-PIN 20-PIN
T
A
V
IO
Max
AT 25°C
SMALL OUTLINE
(D)
CERAMIC DIP
(J)
PLASTIC DIP
(N)
FLAT PACK
(W)
CHIP CARRIER
(FK)
0°C
to
70°C
6 mV uA747CD — uA747CN — —
−55°C
to
125°C
5 mV — uA747MJ — uA747MW uA747MFK
The D package is available taped and reeled. Add the suffix R to the device type, (i.e., uA747CDR).
1
2
3
4
5
6
7
14
13
12
11
10
9
8
IN −
IN +
OFFSET 1N2
V
CC −
OFFSET 2N2
IN +
IN −
OFFSET 1N1
1 V
CC +
†
OUT
NC
OUT
2 V
CC +
†
OFFSET 2N1
D, J, N, OR W PACKAGE
(TOP VIEW)
3 2 1 20 19
910111213
4
5
6
7
8
18
17
16
15
14
OUT
NC
NC
NC
OUT
OFFSET 1N2
NC
V
CC −
NC
OFFSET 2N2
uA747m ...FK PACKAGE
(TOP VIEW)
IN + IN − NC OFFSET 1N1
IN +
IN −
NC
NC − No internal connection
OFFSET 2N1
CC+
1 V
†
CC+
2 V
†
†
The two positive supply terminals (1 V
CC +
and 2 V
CC +
) are
connected together internally.
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