MD0100N8-G

MD0100N8-G is a single-channel high-voltage protection T/R switch. It is a high-voltage, two-terminal, bi-directional, current-limiting protection device. The two terminals are interchangeable. It is designed to protect a low-noise receiver from high-voltage transmit pulses in ultrasound applications and is commonly referred to as a transmit-and-receive switch. The MD0100 can be considered as a normally closed switch with a typical switch resistance of 15ohm that allows small signals to pass. When voltage drop across the two terminals exceeds a nominal value of ±2V, device turns off. In the OFF state, the MD0100 can withstand up to ±100V across its terminals. A small amount of current (typ 200µA) is allowed to flow through. It can also be used as resettable fuses to protect power lines, output short-circuits protection and data acquisition. Applications include medical ultrasound imaging, non-destructive testing applications, fast resettable fuses, high-side switches, data acquisition.

• Fast-switching speed, effective simple two-terminal device
• No external supplies needed, up to ±100V input voltage protection
• Switch-on resistance from A to B is 15 ohm typical at (IA–B = ±5mA, TJ = 25°C)
• Switch turn-off voltage is ±2V typical at (IA–B = ±1mA, TJ = 25°C)
• Switch-off current is ±200µA typical at (VA–B = ±100V, TJ = 25°C)
• Peak switching current is ±60mA typical at (TJ = 25°C)
• Small signal bandwidth is 100MHz typical at (RLOAD = 50 ohm, TJ = 25°C)
• Turn-on time is 20ns maximum at (TJ = 25°C)
• Operating temperature range from -40°C to +125°C
• 3-lead SOT89 package