Transistor array structure

A semiconductor circuit can include a plurality of arrays of transistors having differing characteristics and operating at low voltages and currents. A drain line drive signal may provide a potential to a drain line to which a selected transistor is connected. A row of drain mux circuits can provide reduced leakage current on the drain line drive signal so that more accurate current measurements may be made. A gate line drive signal may provide a potential to a gate line to which the selected transistor is connected. A column of gate line mux circuits can provide a gate line low drive signal to unselected transistors to reduce leakage current in unselected transistors so that more accurate drain current measurements may be made to the selected transistor.