The AD539JD is a dual-channel linear analog multiplier/divider from Analog Devices. It features 2-quadrant operation, 60 MHz signal bandwidth, and 5 MHz control bandwidth in a 16-CDIP through-hole package.
The AD539SD is a dual-channel 2-quadrant analog multiplier/divider from Analog Devices. It features a 60 MHz signal bandwidth and operates from ±5 V supplies.