NATIONAL SEMICONDUCTOR INTRODUCES INDUSTRY'S LOWEST POWER, HIGHEST OUTPUT, SINGLE-SUPPLY DUAL AND TRIPLE VIDEO-LINE DRIVERS

August 11, 1997 - National Semiconductor Corporation® today announced availability of a broad family of dual and triple low-power, high-output op amps and programmable buffers. The industry-leading drivers combine high speed, high output current, low power consumption, excellent video and distortion specs and single-supply operation. Incorporating a new buffer-driven, common-emitter output, the devices can source or sink up to 130mA and drive a low-impedance load within 1.0V of either supply rail. Supply current is as low as 1.6mA/channel. These devices require the lowest power and deliver the highest output of any single-supply dual and triple video-line drivers on the market.

"This family of duals and triples is derived from our CLC45X series, which recently gave designers new options in off-the-shelf, high-speed/high-output op amps and buffers in ultra-small SOT-23 packages." said Jeff Hooker, marketing manager for National Semiconductor's Comlinear Products Group. "Now, designers have even more choices. The duals are ideal for applications such as driving video through twisted pair and for signal-boosting tasks such as driving transformers. The triples are an excellent choice for RGB video driving through coaxial cable."

The family of duals includes two dual op amps (the CLC5602 and CLC5622) and two dual programmable buffers (the CLC5612 and CLC5632). All four devices can operate from either a single +5V supply or dual 5V supplies.

The family of triples includes one triple op amp (the CLC5623) and one triple programmable buffer (the CLC5633). Both can operate from either a single +5V supply or dual 5V supplies.

Both the duals and triples feature excellent harmonic-distortion specs and maintain high signal fidelity while driving low-impedance loads in single-supply systems.

With the combination of wide bandwidth, low power consumption, high output current and low harmonic distortion, the CLC56XX family is also expected to find broad application in communications systems (high-speed modems), residential broadband systems (ADSL/HDSL), digital video (AD/DA converters) and instrumentation.

Price and Availability
The CLC56XX family is available now in industrial-screened versions (-40 to +85 C) in plastic DIP and plastic SOIC packages. Plastic MSOP packages will also be offered in Q4, 97. List prices in quantities of 1000s start at:
CLC5602 Dual Op Amp, $1.70
CLC5612 Dual Programmable Buffer, $1.70
CLC5622 Dual Op Amp, $1.74
CLC5632 Dual Programmable Buffer, $1.74
CLC5623 Triple Op Amp, $2.23
CLC5633 Triple Programmable Buffer, $2.23

For more information on the CLC56X2 or CLC56X3, visit our website at http://www.national.com.

National Semiconductor Corporation, a Fortune 500 company, produces system on a chip silicon solutions for the information highway, based on its leadership in analog and mixed signal technologies. National is headquartered in Santa Clara, California, and focuses on the communications, personal systems and consumer markets. National has annual sales of approximately $2 billion and 12,000 employees worldwide. Additional company and product information is available on the World Wide Web at www.national.com.

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CL97004

Appendix: Performance Specifications:
Performance specifications of the dual op amps and dual programmable buffers are summarized below:

Part	VCC	Bandwidth	Quiescent Current	Output Current	Slew
		(MHz @ Av=+2)	Per Channel	Per Channel	Rate
			(mA)	(mA)	(V/(s)

Dual Op Amps
CLC5602	+5	100	1.6	100	220
	+/-5	135	1.6	130	300
CLC5622	+5	130	3.2	100	280
	+/-5	160	3.2	130	370

Dual Programmable Buffers
CLC5612	+5	75	1.6	100	185
	+/-5	90	1.6	130	290
CLC5632	+5	100	3.2	100	170
	+/-5	130	3.2	130	410

Performance specifications of the triple op amp and triple programmable buffer are summarized below:

Part	VCC	Bandwidth	Quiescent Current	Output Current	Slew
		(MHz @ Av=+2)	Per Channel	Per Channel	Rate
			(mA)	(mA)	(V/(s)

Triple Op Amp
CLC5623	+5	107	3.2	100	280
	+/-5	148	3.2	130	370
Triple Programmable Buffer
CLC5633	+5	100	3.2	100	290
	+/-5	130	3.2	130	410