Safe Operating Voltage for STHV800 in Fault Scenarios

[raghavendrap]

Greetings Community,

I am using the STHV800 ultrasound pulser in the analog front-end of an ultrasound imaging application. In my setup, I pulse at ±50V, generating a 3-cycle biphasic signal at 5.2 MHz for transmit. The transducer is connected via a 2-meter twisted pair cable; 70-ohm impedance match.

I am evaluating potential fault scenarios where:

1. Some transducer elements may be shorted to ground.
2. Some transducer elements may be open.
   To ensure the safety and longevity of the STHV800 under these conditions, I would like to understand the following:
   1. What is the maximum safe voltage I can pulse at without damaging the pulser in these fault scenarios?
   2. Does the STHV800 have any built-in protection mechanisms or considerations for handling short-to-ground or open-circuit conditions?

Thank you for your assistance!

Best regards,
Raghavendra Padmanabha