Patent ID: 8587348
Filing Date: 2013-11-19
Classification: H03F,H03K,H04L

Abstract:
1. A driver circuit comprising: a differential input including a positive input node and a negative input node; a differential output including a positive output node and a negative output node; a bias node; a first T-coil having a first node coupled to the negative output node, a center tap, and a second node coupled to a source of supply voltage; a second T-coil having a first node coupled to the positive output node, a center tap, and a second node coupled to the source of supply voltage; a first transistor having a current path coupled between the center tap of the first T-coil and a first intermediate node, and a control node coupled to the bias node; a second transistor having a current path coupled between the center tap of the second T-coil and a second intermediate node, and a control node coupled to the bias node; a third transistor having a current path coupled between the first intermediate node and ground, and a control node coupled to the positive input node; and a fourth transistor having a current path coupled between the second intermediate node and ground, and a control node coupled to the negative input node.