UA733 Differential Video Amplifier |

UA733 (ACTIVE) Differential Video Amplifier

Differential Video Amplifier - UA733


The µA733 is a monolithic two-stage video amplifier with differential inputs and differential outputs. Internal series-shunt feedback provides wide bandwidth, low phase distortion, and excellent gain stability. Emitter-follower outputs enable the device to drive capacitive loads, and all stages are current-source biased to obtain high common-mode and supply-voltage rejection ratios.

Fixed differential amplification of 10 V/V, 100 V/V, or 400 V/V may be selected without external components, or amplification may be adjusted from 10 V/V to 400 V/V by the use of a single external resistor connected between 1A and 1B. No external frequency-compensating components are required for any gain option.

The device is particularly useful in magnetic-tape or disc-file systems using phase or NRZ encoding and in high-speed thin-film or plated-wire memories. Other applications include general-purpose video and pulse amplifiers where wide bandwidth, low phase shift, and excellent gain stability are required.

The µA733C is characterized for operation from 0°C to 70°C; the µA733M is characterized for operation over the full military temperature range of –55°C to 125°C.


  • 200-MHz Bandwidth
  • 250-k Input Resistance
  • Selectable Nominal Amplification of 10, 100, or 400
  • No Frequency Compensation Required

The µA733M is obsolete and no longer supplied.


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Part number Order Output current (Typ) (mA) Vs (Min) (V) Vs (Max) (V) Number of channels (#) Operating temperature range (C) Package Group Package size: mm2:W x L (PKG) Rating
UA733 Order now 3.6     6     6     1     0 to 70     PDIP | 14
SOIC | 14
SO | 14    
See datasheet (PDIP)
14SO: 80 mm2: 7.8 x 10.2 (SO | 14)
14SOIC: 52 mm2: 6 x 8.65 (SOIC | 14)