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| LMH6714 Datasheet, PDF (15/30 Pages) National Semiconductor (TI) – Wideband Video Op Amp; Single, Single with Shutdown and Quad | |||
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LMH6714, LMH6720
LMH6722, LMH6722-Q1
SNOSA39G â NOVEMBER 2002 â REVISED APRIL 2013
Figure 40. Design Equations
10
8
6
4
2
0
-2
-4
-6
10k 100k 1M 10M 100M 1G
FREQUENCY (Hz)
Figure 41. Equalizer Frequency Response
POWER DISSIPATION
Follow these steps to determine the Maximum power dissipation for the LMH6714/LMH6720/LMH6722:
1. Calculate the quiescent (no load) power: PAMP = ICC (VCC -VEE)
2. Calculate the RMS power at the output stage: POUT (RMS) = ((VCC - VOUT (RMS)) * IOUT (RMS)), where VOUT
and IOUT are the voltage and current across the external load.
3. Calculate the total RMS power: PT = PAMP + POUT
The maximum power that the LMH6714/LMH6720/LMH6722, package can dissipate at a given temperature can
be derived with the following equation:
PMAX = (150° - TA)/ θJA, where TA = Ambient temperature (°C) and θJA = Thermal resistance, from junction to
ambient, for a given package (°C/W). For the SOIC package θJA is 145°C/W, for the 5-pin SOT-23 it is 232°C/W.
Copyright © 2002â2013, Texas Instruments Incorporated
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Product Folder Links: LMH6714 LMH6720 LMH6722 LMH6722-Q1
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