Differential amplifier in a 14-DIP — still a current-production workhorse
The Texas Instruments UA733CN is a single-circuit differential amplifier delivering a differential output, housed in a 14-DIP (0.300", 7.62 mm) through-hole package. It draws 16 mA supply current and can source 3.6 mA per output channel.
The 16 mA supply current is the total current drawn by the IC from the rail — factor it into your power budget early, especially if you are running multiple channels or a tight regulator. The 3.6 mA per-channel output current tells you the drive capability into a terminated line (typically 75 Ω or 100 Ω differential); if your load demands more, you will need a buffer stage. These numbers are typical operating conditions, not absolute maximums, so they define the steady-state thermal and supply design point.
Through-hole DIP — still a valid footprint for retrofit and breadboard
The 14-DIP (0.300", 7.62 mm) through-hole package is the same footprint used in countless existing designs, test fixtures, and breadboards. The supplier device package is 14-PDIP, which is the same mechanical outline.
Active lifecycle — no obsolescence pressure on this line item
There is no official replacement part number — the original remains the current offering.