EL2176, EL2276
safe operating area. These parameters are calculated as
follows:
TJMAX = TMAX + (θJA * n * PDMAX) [1]
where:
TMAX=Maximum Ambient Temperature
θJA =Thermal Resistance of the Package
n=Number of Amplifiers in the Package
PDMAX=Maximum Power Dissipation of each Amplifier in
the Package
Typical Application Circuits
PDMAX for each amplifier can be calculated as follows:
PDMAX = (2 * VS * ISMAX) + (VS - VOUTMAX) *
(VOUTMAX/RL)) [2]
where:
VS=Supply Voltage
ISMAX=Maximum Supply Current of 1 Amplifier
VOUTMAX=Max. Output Voltage of the Application
RL=Load Resistance
LOW POWER MULTIPLEXER WITH SINGLE-ENDED TTL INPUT
11