LM96530

LM96530 PRODUCT BRIEF LM96530 PRODUCT BRIEF Ultrasound Transmit/Receive Switch General Description The LM96530 is an eight-channel monolithic high-voltage, high-speed T/R (Transmit/Receive) switch for multi-channel medical ultrasound applications. It is well-suited for use with National’s LM965XX series chipset which offers a complete medical ultrasound solution targeted towards low-power, portable systems. The LM96530 contains eight high-voltage T/R switches with integrated clamping diodes. This chip protects the inputs of the receive channel's LNA (Low Noise Amplifier) from the high-voltage pulses of the transmit channel. Advanced features include a diode bridge with internal current sources that are programmable via an external resistor. Low-power operation is enabled via per-channel-selectable switching. National Semiconductor also offers a development package for sale which includes a driver hardware and software package with a graphical user interface for configuration and monitoring. PRELIMINARY September 3, 2010 Features ■ 8-channel high-voltage receive side switches without charge-injection ■ Can be used for receive protection and/or receive multiplexing with SPI™ compatible bus control ■ Channel bandwidth supports 1MHz to 15MHz transducers ■ Input accepts pulses and continuous-wave signals within ■ ■ ■ ■ ■ Applications ■ Ultrasound Imaging ±60V Integrated output clamping diodes limit output to ±0.7V Low harmonic distortion HD2 at -75dBc at 5MHz Continuous-wav...