UA733CDR

Overview

The UA733CDR is a monolithic two-stage video amplifier manufactured by Texas Instruments, housed in a 14-pin SOIC package. It features differential inputs and outputs with selectable nominal amplification of 10 V/V, 100 V/V, or 400 V/V. The device provides a bandwidth of up to 200 MHz and an input resistance of 250 kΩ at the highest gain setting. Operating characteristics include a supply current of 16 mA and a maximum junction temperature of 150°C. It is characterized for operation within a temperature range of 0°C to 70°C.

Feature Summary

• Monolithic two-stage architecture with differential inputs and outputs
• Internal series-shunt feedback ensures wide bandwidth and low phase distortion
• Emitter-follower outputs enable driving of capacitive loads
• No external frequency-compensating components required

Applications

• Magnetic-tape systems using phase or NRZ encoding
• Disc-file systems utilizing phase or NRZ encoding
• High-speed thin-film or plated-wire memories
• General-purpose video amplifiers requiring wide bandwidth
• Pulse amplifiers requiring excellent gain stability

Procurement Notes

Verify that the UA733CDR designation corresponds to the active production status listed in the Package Option Addendum. Confirm the SOIC-14 package type and 2500-unit reel quantity match project requirements. Ensure the 0°C to 70°C operating temperature range aligns with environmental specifications. Cross-reference the part marking 'UA733C' on the component body against ordering information.

Selection Notes

Select this component when differential signal processing with high bandwidth is required without external compensation. The fixed gain options simplify circuit design compared to adjustable variants. Consider the 250-kΩ input resistance for impedance matching applications. Evaluate the 16-mA supply current against power constraints. Verify compatibility with single-ended or differential load configurations based on output swing capabilities.

Part Context

The UA733CDR belongs to the UA733 family of differential video amplifiers. It shares functional similarities with the UA733CN (PDIP) and UA733CNSR (SOP) but differs in packaging and standard packing quantities. The 'D' suffix indicates the SOIC package, while 'R' denotes tape-and-reel delivery. This variant is distinct from operational amplifiers like the TLC073 or precision amplifiers like the OP07 due to its specific video application focus.

Replacement Considerations

Direct substitutes include UA733CD (tube), UA733CN (PDIP), and UA733CNSR (SOP). These parts share identical electrical characteristics and pinouts but differ in physical package and shipping quantity. No other manufacturer part numbers are confirmed as direct replacements in the provided documentation.