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National Semiconductor's New High Output Dual Line Driver Offers Smallest Package and Very Low Distortion

Nov 21, 2000

November 21, 2000 - National Semiconductor Corporation (NYSE:NSM) today announced at Electronica 2000 the LM7372, a dual, low-cost, high-speed line driver.  The LM7372 is designed to drive twisted pair applications such as ADSL Lite, Customer Premises Equipment (CPE) ADSL, VDSL, HDSL, as well as other general twisted pair applications.  The LM7372 is on display at National's booth A4.506 at Electronica 2000, the world's largest international trade fair for components and assemblies in electronics.

The LM7372 is available in an extremely small, leadless leadframe package (LLP) that features exceptional thermal dissipation performance, allowing it to deliver maximum output power in very limited spaces.  The 4 by 4 mm package easily delivers 150mA from 10V to 30V supplies.  Additionally, it features very low -80dBc total harmonic distortion (2V Peak to Peak, 1MHz, Resistive Load=100 ohms at 30V), providing high signal fidelity for twisted pair and analog transmission lines. 

"The LM7372 is a cost-effective solution that saves considerable space and expense over larger packages that require thermal slugs or tabs," said Jeff Hooker, National Semiconductor's amplifier products marketing manager. "Its thermally-enhanced package saves board area in new designs and redesigns.  As a result, the LM7372 is ideally suited for space-restricted modem applications like PCMCIA based ADSL and ADSL Lite."

In addition to its small size, the LM7372 provides 125MHz small-signal bandwidth at a grain of +2V/V and 700V/us slew rates in a dual +/-5V system, while drawing only 6.5 mA per channel of quiescent current.

Performance of the LM7372 is further enhanced in a dual +/-15V system with bandwidths and slew rates increasing to 220MHz/3000V/us.  Its ability to drive 22Vpp off of 30V supplies while delivering 150mA makes it well-suited for many twisted pair driving applications.  The LM7372's excellent video specifications (0.01/0.02 differential phase and differential gain) also make it ideal for driving long, heavy-duty video applications.  The combination of low-power (6.5mA per channel) and high-output drive ability makes the LM7372 one of the lowest-power, highest-output, highest value dual line drivers on the market.

Pricing and Availability
Available now in the LLP-8 package, the LM7372 amplifier is priced at $1.98 in 1000-unit quantities.  For more information on the LM7372 amplifier, visit National's World Wide Web site at
www.national.com/pf/LM/LM7372.html, or contact National's Design Support Group at 1-800-272-9959. To view a high-resolution downloadable photo of the LM7372, visit National's photo gallery at www.national.com/company/pressroom/gallery/oa.html.
About National Semiconductor
National Semiconductor provides system-on-a-chip solutions for the information age. Combining real-world analog and state-of the-art digital technology, the company's chips lead many sectors of the personal computer, communications, and consumer markets. With headquarters in Santa Clara, California, National reported sales of $2.1 billion for its last fiscal year and has about 10,500 employees worldwide. Additional company and product information is available on the World Wide Web at www.national.com