Patent ID: 9584152
Date: 2017-02-28
CPC Classifications: H03M

Claim:
1. A dual current switch module configured to receive a pair of complementary differential signal inputs representing one digital bit, the dual current switch module comprising: first and second differential current outputs; a first current switch comprising a first switch transistor, a second switch transistor, and a first current source connected to a common emitter node of the first and second switch transistors, wherein the first and second switch transistors are configured to steer the first current source to one of the first and second differential current outputs; and a second current switch comprising a third switch transistor, a fourth switch transistor, and a second current source connected to a common emitter node of the third and fourth switch transistors, wherein the third and fourth switch transistors are configured to steer the second current source to one of the first and second differential current outputs; wherein the first and second current sources produce equal currents.