EL2260CS datasheet(13/15 Pages) INTERSIL

13 / 15 page

required in order for the EL2260/EL2460 to survive an

indefinite short.

Channel to Channel Isolation

Due to careful biasing connections within the internal

circuitry of the EL2260/EL2460, exceptionally good channel

to channel isolation is obtained. Isolation is over 70dB at

video frequencies of 4MHz, and over 65dB up to 10MHz.

The EL2460 isolation is improved an additional 10dB, up to

about 5MHz, for amplifiers A to B and amplifiers C to D.

Isolation is improved another 8dB for amplifiers A to C and

amplifiers B to D. See the curve in the Typical Performance

Curves section for more detail.

Driving Cables and Capacitive Loads

When used as a cable driver, double termination is always

recommended for reflection-free performance. For those

applications, the back termination series resistor will

decouple the EL2260 and EL2460 from the capacitive cable

and allow extensive capacitive drive. However, other

applications may have high capacitive loads without

termination resistors. In these applications, an additional

small value (5

Ω–50Ω) resistor in series with the output will

eliminate most peaking. The gain resistor, RG, can be

chosen to make up for the gain loss created by this

additional series resistor at the output.

EL2260, EL2460

EL2260CS Datasheet(PDF) 13 Page - Intersil Corporation