LMH6714MFX datasheet(12/15 Pages) NSC

Part #	LMH6714MFX

Description	Wideband Video Op Amp; Single, Single with Shutdown and Quad

PDF	15 Pages

Scroll/Zoom	100%

Manufacturer	NSC [National Semiconductor (TI)]

Direct Link	http://www.national.com

Logo

12 / 15 page

Application Section (Continued)

POWER DISSIPATION

Follow these steps to determine the Maximum power dissi-

pation for the LMH6714/6720/6722:

1. Calculate the quiescent (no load) power: P

AMP =ICC

CC -VEE)

2. Calculate

the

RMS

power

the

output

stage:

OUT (RMS)

= ((V

CC -VOUT (RMS)) * IOUT (RMS)),

where V

OUT and IOUT are the voltage and current across

the external load.

3. Calculate the total RMS power: P

T =PAMP +POUT

The maximum power that the LMH6714/6720/6722, pack-

age can dissipate at a given temperature can be derived with

the following equation:

MAX = (150˚ - TA)/

JA, where TA = Ambient temperature

(˚C) and

JA = Thermal resistance, from junction to ambient,

for a given package (˚C/W). For the SOIC package

JA is

148˚C/W, for the SOT it is 250˚C/W.

20056522

FIGURE 8.

20056529

FIGURE 9. Digital Signal without and with Equalization

20056530

FIGURE 10. Design Equations

20056517

FIGURE 11. Equalizer Frequency Response

LMH6714MFX Datasheet(PDF) 12 Page - National Semiconductor (TI)