Philips Semiconductors Linear Products Product specification
µA733/733CDifferential video amplifier
262
April 15, 1992 853-1064 06456
DESCRIPTION
The 733 is a monolithic differential input, differential output,
wide-band video amplifier. It offers fixed gains of 10, 100, or 400
without external components, and adjustable gains from 10 to 400
by the use of an external resistor. No external frequency
compensation components are required for any gain option. Gain
stability, wide bandwidth, and low phase distortion are obtained
through use of the classic series-shunt feedback from the
emitter-follower outputs to the inputs of the second stage. The
emitter-follower outputs provide low output impedance, and enable
the device to drive capacitive loads. The 733 is intended for use as
a high-performance video and pulse amplifier in communications,
magnetic memories, display and video recorder systems.
FEATURES
•120MHz bandwidth
•250kΩ input resistance
•Selectable gains of 10, 100, and 400
•No frequency compensation required
•MIL-STD-883A, B, C available
PIN CONFIGURATION
1
2
3
4
5
6
7 8
14
13
12
11
10
9
INPUT 2
NC
V–
NC
OUTPUT 2
INPUT 1
NC
V+
NC
OUTPUT 1
TOP VIEW
N Package
G2B GAIN SELECT
G1B GAIN SELECT
G2A GAIN SELECT
G1A GAIN SELECT
APPLICATIONS
•Video amplifier
•Pulse amplifier in communications
•Magnetic memories
•Video recorder systems
ORDERING INFORMATION
DESCRIPTION TEMPERATURE ORDER CODE DWG #
14-Pin Plastic Dual In–Line Package (DIP) -55°C to +125°CµA733N 0405B
14-Pin Plastic Dual In–Line Package (DIP) 0 to +70°CµA733CN 0405B
CIRCUIT SCHEMATIC
+V
Q6
OUTPUT 1
OUTPUT 2
R1 R2 R8 R10 R9
Q5
Q4
Q3
R12
Q11
R14
Q9
G1A
INPUT 1 INPUT 2
R3 R5
Q1 Q2
-V
2.4kΩ2.4kΩ
G2A
GAIN
SELECT 50Ω
590Ω
50Ω
R4 590Ω
R6
Q7
R7
300Ω
G2B
G1B
10kΩ1.1kΩ1.1kΩ
R11
7kΩ
7kΩ
1.4kΩ
Q8 Q10
300ΩR12
400Ω400Ω