LACP is not an EtherChannel.
LACP, or Link Aggregation Control Protocol, is a Layer 2 Ethernet protocol used to bundle multiple physical links together to form a logical link that functions as if it were a single link. LACP can be used with switches and routers from different vendors, and can be used with both static and dynamic configurations.
EtherChannel is a Cisco-proprietary technology that bundles multiple physical Ethernet links into a single logical channel. EtherChannels can be created between two devices, or between a device and a port on a switch. EtherChannel has been supported on almost all Cisco Catalyst switches since the CatOS 6.3(1) release in August 2001.