Philips Semiconductors

Product specification

µA733/733C

Differential video amplifier

2

1992 Apr 15

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

PIN CONFIGURATION

1

2

3

4

5

6

78

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

SL00089

Figure 1. Pin Configuration

APPLICATIONS

ORDERING INFORMATION

DESCRIPTION

TEMPERATURE

ORDER CODE

DWG #

14-Pin Plastic Dual In–Line Package (DIP)

-55

°C to +125°C

µA733N

SOT27-1

14-Pin Plastic Dual In–Line Package (DIP)

0 to +70

°C

µA733CN

SOT27-1

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

2.4k

Ω

2.4k

Ω

G2A

GAIN

SELECT

50

Ω

590

Ω

50

Ω

R4

590

Ω

R6

Q7

R7

300

Ω

G2B

G1B

10k

Ω

1.1k

Ω

1.1k

Ω

R11

7k

Ω

7k

Ω

1.4k

Ω

Q8

Q10

300

Ω

R12

400

Ω

400

Ω

SP00090

Figure 2. Circuit Schematic