CPC H04B 1/44 (2013.01) [B06B 1/023 (2013.01); H03K 17/00 (2013.01); H03K 17/002 (2013.01); H04B 11/00 (2013.01); A61B 8/14 (2013.01); A61B 8/54 (2013.01); B06B 2201/76 (2013.01)] | 24 Claims |
1. A system, comprising: an ultrasound device comprising: a transmit-receive switch,
wherein the transmit-receive switch comprises:
a first N-type Field-Effect Transistor (NFET) having a gate, a drain and a source;
a second NFET having a gate, a drain and a source wherein the drain of the second NFET is directly coupled to the drain of the first NFET;
a first switch having a first terminal and a second terminal wherein the first terminal is directly coupled to the source of the first NFET and the second terminal is directly coupled to ground;
a second switch having a first terminal and a second terminal wherein the first terminal is directly coupled to the source of the first NFET and the second terminal is directly coupled to a receive terminal; and
a receiver front-end circuit, in which the receive terminal directly connects the transmit-receive switch to the receiver front-end circuitry.
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