The 100314 is a monolithic quint differential line receiver with emitter-follower outputs. An internal reference supply (Vbb) is available for single-ended reception. When used in single-ended operation, the only mode allowed is to connect the complementary inputs to Vbb. Unlike other F100K ECL devices, the inputs do not have input pull-down resistors. Active current sources provide common-mode rejection of 1.0V in either the positive or negative direction. A defined output state exists if both inverting and non-inverting inputs are at the same potential between Vee and Vcc. The defined state is logic HIGH on the Oa-Oe outputs.