The MD1711DB2 demoboard is as a five-level, dual-channel, +/-100V, 2.0A, return-to-zero pulser. It can directly drive two 50 or 75Ω impedance transducers for 1.0MHz to 20MHz medical ultrasound imaging or NDT applications.
The MD1711DB2 consists of one MD1711 in a 48-Lead LQFP package driving six TC6320 complementary high voltage MOSFET pairs in 8-Lead SOIC packages. The external logic signal connector, J13, connects all the input control signals of the MD1711 to the user’s logic control source via a short ribbon cable. In typical two-, three- or five-level bipolar pulsing, PW or CW waveforms can be generated by the proper input control signal listed below. Jumpers are provided for the output, such that it can drive either the on-board RC load 220pF capacitor in parallel with a 1.0KΩ resistor or with an external load of cable to the user’s ultrasound testing transducer.