Analog Devices MAX44284 is offered with four different gain options, denoted by the last letter in the four part numbers shown on this slide. Two packages are supported, the 6-pin SOT-23 and the even smaller 6-bump, 0.4 mm pitch Wafer Level Package (WLP) which is a tiny 1.3 mm x 0.9 mm. For engineers who are not familiar with WLP, refer to Analog Devices' APPLICATION NOTE 1891: Wafer-Level Packaging (WLP) and its Applications.