Philips Semiconductors Linear Products
Dual operational amplifier
Product specification
µA747C
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
µA741 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
PIN CONFIGURATION
N Package
INV. INPUT A 1
NON–INVERTING INPUT A 2
+–A
OFFSET NULL A 3
V– 4
OFFSET NULL B 5
NON–INVERTING INPUT B 6
+
INVERTING INPUT B 7
–B
14 OFFSET NULL A
13 V + A
12 OUTPUT A
11 NO CONNECT
10 OUTPUT B
9 V+B
8 OFFSET NULL B
TOP VIEW
ORDERING INFORMATION
DESCRIPTION
14-Pin Plastic DIP
EQUIVALENT SCHEMATIC
TEMPERATURE RANGE
0°C to 70°C
ORDER CODE
µA747CN
DWG #
0405B
INVERTING INPUT
Q8
Q9
NON–INVERTING
INPUT
Q1
Q2
Q3
Q4
Q7
Q5
OFFSET NULL
Q6 Q10
Q12
Q13
30pF
R5
39KΩ
R7
4.5Ω
R8
7.5KΩ
Q18 Q15
Q16
Q17
Q11 Q22
R1 R3
1KΩ 50KΩ
R2
R4
1KΩ
5kΩ
OFFSET NULL
R12 R11
50kΩ 50Ω
V+
Q14
R9
25Ω
OUTPUT
R10
50Ω
Q20
V–
August 31, 1994
54
853-0899 13721