LB2223B Multi-Footprint Lab Board Analog Devices Inc. LB2223B Multi-Footprint Lab Board is a prototyping board that supports various package types during application design. The Analog Devices LB2223B Lab Board supports Mini Small Outline Package (MSOP), Small Outline Integrated Circuit (SOIC), Dual Flat Pack (DFN), and Small Outline Transistor (SOT) package types. Each pin landing pad is connected to an edge pad to simplify wiring surface-mount packages into other circuits. A center trace with pads at each end and center pads on the two boards on the right are included as a ground trace.