Features

s

100mA output current

s

3.0mA supply current

s

s

-65/-84dBc HD2/HD3 (1MHz)

s

25ns settling to 0.05%

s

370V/

µs slew rate

s

Stable for capacitive loads up to 1000pF

s

Single 5V to ±5V supplies

s

Available in Tiny SOT23-5 package

Applications

s

Coaxial cable driver

s

Twisted pair driver

s

Transformer/Coil Driver

s

High capacitive load driver

s

Video line driver

s

Portable/battery-powered applications

s

A/D driver

451 Pinout

1k

Ω

1k

Ω

0.1

µF

6.8

µF

5k

Ω

5k

Ω

+

+5V

+5V

1

CLC453

7

6

8

5

3

4

2

1k

Ω

1k

Ω

0.1

µF 0.1µF

453 Typ. App. Diagram

10m of 75

Ω

Coaxial Cable

75

Ω

0.1

µF

75

Ω

Typical Application

Single Supply Cable Driver

Pinout

DIP & SOIC

General Description

The Comlinear CLC453 is a low cost, high speed (110MHz)

buffer that features user-programmable gains of +2, +1, and

-1V/V. It has a new output stage that delivers high output drive

current (100mA), but consumes minimal quiescent supply

current (3.0mA) from a single 5V supply. Its current feedback

architecture, fabricated in an advanced complementary bipolar

process, maintains consistent performance over a programmable

range of gains and wide signal levels, and has a linear-phase

response up to one half of the -3dB frequency. The CLC453’s

internal feedback network provides an excellent gain accuracy

of 0.3%

The CLC453 offers superior dynamic performance with a 110MHz

small-signal bandwidth, 370V/

µs slew rate and 4.8ns rise/fall

low quiescent power, high output current drive, and high-speed

performance make the CLC453 well suited for many battery-

powered personal communication/computing systems.

The ability to drive low-impedance, highly capacitive loads,

makes the CLC453 ideal for single ended cable applications. It

also drives low impedance loads with minimum distortion. The

CLC453 will drive a 100

Ω load with only -72/-74dBc second/third

load, and the same conditions, it produces only -65/-77dBc

second/third harmonic distortion. It is also optimized for driving

high currents into single-ended transformers and coils.

When driving the input of high-resolution A/D converters, the

CLC453 provides excellent -65/-84dBc second/third harmonic

settling time.

Ω)

450 Performance Plot

1

2

3

4

5

6

7

8

9

10

10

100

1000

Comlinear CLC453

Single Supply, Low-Power, High Output,

Programmable Buffer

N

December 1996

Response After 10m of Cable

20ns/div

450 Typ. App. Plot

451 Pinout (SOT)

1k

Ω

1k

Ω

+

-

Pinout

SOT23-5

© 1996 National Semiconductor Corporation

http://www.national.com

Printed in the U.S.A.