Impedance matched transmission circuit with analog-to-digital converter

摘要

An impedance matching transmission circuit for a transducer has a transmission medium connected to the transducer. A transmitting circuit is connected to the transmission medium with the transmitting circuit terminating in a reference circuit element. The transmitting circuit comprises an analog to digital converter having an analog input connected to the reference circuit element, and having a digital output. A digital to analog converter receives the digital output and generates an analog output signal in response thereto. A driver circuit is connected to the transmission medium and receives the analog output signal and supplies a driver signal to the transmission medium.

主权项

1. An ultrasound transmitter driver, comprising:
an analog-to-digital converter coupled to a reference resistor, wherein the analog-to-digital converter is configured to supply an encoded digital signal to a digital-to-analog circuit; the digital-to-analog circuit configured to supply an analog signal to a programmable ultrasound-transmitter-driver circuit; and the programmable ultrasound-transmitter-driver circuit configured to supply an ultrasound transmission to an ultrasound cable.