LM96550

www.ti.com

SNAS504F – AUGUST 2010 – REVISED MAY 2013

LM96550 Ultrasound Transmit Pulser

Check for Samples: LM96550

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FEATURES

APPLICATIONS

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8-Channel High-Voltage CMOS Pulse

•

Ultrasound Imaging

Generator

DESCRIPTION

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Output Pulses with ±50V and 2A Peak Current

The LM96550 is an eight-channel monolithic high-

•

Active Damper with Built-In Blocking Diodes

voltage, high-speed pulse generator for multi-channel

•

Up to 15 MHz Operating Frequency

medical ultrasound applications. It is well-suited for

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Matched Delays for Rising and Falling Edges

use with TI’s LM965XX series chipset which offers a

complete

medical

ultrasound

solution

targeted

•

Low Second Harmonic Distortion Allows and

towards low-power, portable systems.

Improves Harmonic Imaging

The LM96550 contains eight high-voltage pulsers

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Continuous-Wave (CW) Operation Down to

with integrated diodes generating ±50V bipolar pulses

±3.3V

with peak currents of up to 2A and pulse rates of up

•

Low Phase Noise Enables Doppler

to 15 MHz. Advanced features include low-jitter and

Measurements

low-phase-noise output pulses ideal for continuous-

–

-145 dBc/Hz Phase Noise at 10 MHz (1 kHz

wave (CW) modes of operation. Active clamp circuitry

offset)

is integrated for ensuring low harmonic distortion of

the output signal waveform.

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Output State Over-Temperature Protection

The LM96550 also features a low-power operation

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Blocking Diodes for Direct Interface to

mode and over-temperature protection (OTP) which

Transducer

are enabled by on-chip temperature sensing and

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2.5V to 5.0V CMOS Logic Interface

power-down logic.

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Low-Power Consumption per Channel

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Over Temperature Protection

KEY SPECIFICATIONS

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Output Voltage: ±50 V

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Output Peak Current: ±2.0 A

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Output Pulse Rate: Up to 15 MHz

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Rise/fall Delay Matching (Max): < 3 ns

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Pulser HD2 (5 MHz): -40 dB

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Operating Temp. : 0 to +70 °C

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Products conform to specifications per the terms of the Texas

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