ISL28117 Datasheet, PDF (16/18 Pages) Intersil Corporation – 40V Precision Low Power Operational Amplifiers

ISL28117, ISL28217
where:
• P_DMAXTOTAL is the sum of the maximum power
dissipation of each amplifier in the package (PD_MAX)
• PD_MAX for each amplifier can be calculated using
Equation 2:
PD_MAX
=
V_S × I_qMAX + (V_S
-
V_OUTM
A
X
)
×
V_{-----O----U----T----M-----A----X--}
R_L
(EQ. 2)
where:
• T_MAX = Maximum ambient temperature
• θ_JA = Thermal resistance of the package
• PD_MAX = Maximum power dissipation of 1 amplifier
• V_S = Total supply voltage
• I_qMAX = Maximum quiescent supply current of
1 amplifier
• V_OUTMAX = Maximum output voltage swing of the
application
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16
FN6632.2
October 16, 2009