Interconnectable ultrasound transducer probes and related methods and apparatus
Ultrasound devices and methods are described, including a repeatable ultrasound transducer probe having ultrasonic transducers and corresponding circuitry. The repeatable ultrasound transducer probe may be used individually or coupled with other instances of the repeatable ultrasound transducer probe to create a desired ultrasound device. The ultrasound devices may optionally be connected to various types of external devices to provide additional processing and image rendering functionality.
1. A configurable ultrasound apparatus, comprising:
a semiconductor substrate;
a plurality of ultrasound elements integrated on the semiconductor substrate;
a plurality of low noise amplifiers (LNAs) integrated on the semiconductor substrate;
a first plurality of switches configured to couple an input of each LNA of the plurality of LNAs to outputs of at least some ultrasound elements of the plurality of ultrasound elements;
a multiplexing or summing circuit; and
a second plurality of switches configured to couple outputs of the plurality of LNAs with an input of the multiplexing or summing circuit, and configured to select, from among multiple configuration options, a variable number of the outputs of the plurality of LNAs to connect with the multiplexing or summing circuit,
wherein the multiplexing or summing circuit is configured to multiplex or sum output signals from the plurality of LNAs.
2. The configurable ultrasound apparatus of claim 1 , wherein a first LNA of the plurality of LNAs is a transimpedance amplifier.
3. The configurable ultrasound apparatus of claim 1 , further comprising a variable gain amplifier (VGA) coupled to an output of the multiplexing or summing circuit.
4. The configurable ultrasound apparatus of claim 3 , further comprising an analog-to-digital converter (ADC) coupled to an output of the VGA.
5. The configurable ultrasound apparatus of claim 4 , further comprising filtering circuitry coupled to an output of the ADC and configured to filter a digital signal generated by the ADC.
6. The configurable ultrasound apparatus of claim 1 , wherein each of the plurality of ultrasound elements is coupled to a respective transmit excitation module.
7. The configurable ultrasound apparatus of claim 6 , wherein the transmit excitation module is integrated on the semiconductor substrate.
8. The configurable ultrasound apparatus of claim 7 , wherein the transmit excitation module comprises a waveform generator and a pulser.