National Semiconductor CLC5665 Data Sheet

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June 1999

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CLC5665 Low Distortion Amplifier with Disable General Description Features

The CLC5665 is a low-cost, wideband amplifier that provides very 0.1d B gain flatness to 20MHz (Av = +2) low 2nd and 3rd harmonic distortion at 1MHz (-89/-92d Bc). The 90MHz bandwidth (Av = +1) Large signal BW 25MHz

great slew rate of 1800V/µs, bandwidth of 90MHz (Av = +1) and

1800V/µs slew rate

fast disable make it an excellent choice for many high speed

0.05%/0.05° differential gain/phase

multiplexing applications. Like all current feedback op amps, the

±5V, ±15V or single supplies

CLC5665 allows the frequency response to be optimized

200ns disable to high-impedance output

(or adjusted) by the selection of the feedback resistor. For

Wide gain range

demanding video applications, the 0.1d B bandwidth to 20MHz

-89/-92d Bc HD2/HD3 (RL = 500Ω)

and differential gain/phase of 0.05%/0.05° make the CLC5665

Low cost

the preferred component for broadcast quality NTSC and PAL

video systems. Applications x DSL driver Twisted pair driver

The large voltage swing (28Vpp), continuous output current

Cable driver

(85m A) and slew rate (1800V/µs) provide high-fidelity signal

Video distribution

conditioning for applications such as CCDs, transmission lines

CCD clock driver

and low impedance circuits. ag ni tu de 1d /d iv

Multimedia systems DAC output buffers

x DSL, video distribution, multimedia and general purpose

Imaging systems

applications will benefit from the CLC5665’s wide bandwidth and disable feature. Power is reduced and the output becomes a high Non-Inverting Frequency Response impedance when disabled. The wide gain range of the CLC5665

Av = 1 makes this general purpose op amp an improved solution for Rf = 698

circuits such as active filters, single-to-differential-ended drivers,

Av = 10 Rf = 100

DAC transimpedance amplifiers and MOSFET drivers. Av = 2

Rf = 604

Phase

Av = 1

Av = 50

Av = 2

Av = 50

Rf = 500 Av = 10 -180

Frequency (MHz)

Typical Application

Pinout

Differential Line Driver for x DSL DIP & SOIC

CLC5665

NC DIS

604ΩRg

inv +V cc

Vin (Vpp) Vo = 2Vin n Vo RL

1.2kΩ Rf2

non-inv out

Ro -V NC

CLC5665 Note: Supply and Bypassing not shown.

1999 National Semiconductor Corporation http://www.national.com Printed in the U.S.A.