Philips Semiconductors Linear Products
Dual operational amplifier
DESCRIPTION
The 747 is a pair of high-performance monolithic operational
amplifiers constructed on a single silicon chip. High common-mode
voltage range and absence of "latch-up" make the 747 ideal for use
as a voltage-follower. The high gain and wide range of operating
voltage provides superior performance in integrator, summing
amplifier, and general feedback applications. The 747 is short-circuit
protected and requires no external components for frequency
compensation. The internal 6dB/octave roll-off insures stability in
closed-loop applications. For single amplifier performance, see
A741 data sheet.
FEATURES
No frequency compensation required
Short-circuit protection
Offset voltage null capability
Large common-mode and differential voltage ranges
Low power consumption
No latch-up
ORDERING INFORMATION
DESCRIPTION
14-Pin Plastic DIP
EQUIVALENT SCHEMATIC
NON–INVERTING
INPUT
OFFSET NULL
August 31, 1994
INVERTING INPUT
Q8
Q9
Q1
Q2
Q3
Q4
Q7
Q5
Q10
Q6
R1
R3
R2
R4
1K
50K
1K
5k
OFFSET NULL
PIN CONFIGURATION
N Package
INV. INPUT A
1
2
NON–INVERTING INPUT A
3
OFFSET NULL A
4
V–
OFFSET NULL B
5
6
NON–INVERTING INPUT B
7
INVERTING INPUT B
TEMPERATURE RANGE
0 C to 70 C
Q12
Q13
R7
30pF
4.5
Q18 Q15
R8
7.5K
R5
39K
Q16
Q17
Q11
Q22
R12
R11
50k
50
54
Product specification
A747C
OFFSET NULL A
14
–
A
+
13
V + A
12
OUTPUT A
11
NO CONNECT
10
OUTPUT B
9
V + B
+
B
–
8
OFFSET NULL B
TOP VIEW
ORDER CODE
DWG #
A747CN
0405B
V+
Q14
R9
25
OUTPUT
R10
50
Q20
V–
853-0899 13721