LM96550 Datasheet | National Semiconductor

Description The LM96550 is an eight-channel monolithic high-voltage, high-speed pulse generator for multi-channel medical ultrasound applications. It is well-suited for use with National’s LM965XX series chipset which offers a plete medical ultrasound solution targeted towards low-power, portable systems. The LM96550 contains eight high-voltage pulsers with integrated diodes generating ±50V bipolar pulses with peak currents of up to 2A and pulse rates of up to 15 MHz. Advanced features include low-jitter and low-phase-noise output pulses ideal for continuous-wave (CW) modes of operation. Active clamp circuitry is integrated for ensuring low harmonic distortion of the output signal waveform. The LM96550 also featuers a low-power operation mode and over-temperature protection (OTP) which are enabled by onchip temperature sensing and power-down logic. PRELIMINARY September 3, 2010 Features - - - - - - - - - - - - - - 8-channel high-voltage CMOS pulse generator Output pulses with ±50V and 2A peak current Active damper with built-in blocking diodes Built-in floating supply voltages for output stage Up to 15 MHz operating frequency Matched delays for rising and falling edges Harmonic performance enables harmonic imaging Continuous-wave (CW) operation down to ±3.3V Low Phase noise enables Doppler measurements Output state over-temperature protection Blocking diodes for direct interface to transducer 2.5V to 5.0V CMOS logic interface Low-power consumption per channel Over Temperature Protection Applications - Ultrasound Imaging Key Specifications Output voltage Output peak current Output pulse rate Rise/fall delay matching Pulser jitter Pulser HD2 (5 MHz) Operating Temp. ±50 ±2.0 Up to 15 < 1.5 15 -40 0 to +70 V A MHz ns ps (rms) d B °C © 2010 National Semiconductor Corporation .national. .Data Sheet.in Block Diagram Typical Application 8-Channel Transmit/Receive Chipset .national. .Data Sheet.in Pin...