MD0105
Features
- Up to ±130V Input Voltage Protection
- Low On-Resistance
- 15Ω Typical
- Fast Switching Speed
- Four Electrically Isolated Channels
- No External Supplies Needed
Applications
- Medical Ultrasound Imaging
- NDT Applications
- Fast Resettable Fuses
- High-Side Switches
- Data Acquisition
General Description
The MD0105 is a high-voltage current-limiting protection device. It is designed to protect a low-noise receiver from high-voltage transmit pulses in ultrasound applications. The MD0105 is monly referred to as a T/R (transmit-and-receive) switch.
The device can be considered as a normally closed switch with a typical switching resistance of 15Ω that allows small signals to pass. Once the voltage drop across the two terminals exceeds a nominal value of ±2V, the device will turn off. In the OFF state, the MD0105 can withstand up to ±130V across its terminals. A small amount of current (typically 200 µA) is allowed to flow through.
The MD0105 is not limited to just ultrasound...
