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OPA333: Load resistance VS Load current

Part Number: OPA333

Hi team, 

I have question about load current VS load current.

According to characteristics, Voltage output swing from rail parameter is 50mV max. when RL=10kOhm. 

In this case, I can see output voltage swing VS output current at 0.5mA. Is it correct?  I mean I want to make sure how to calculate the current value such that Vs=5.5V/RL=10kohm = 0.5mA.

Thanks,

Uchihara 

  • The conditions specified at the top of the datasheet page (see below) call for RL connected to mid-supply:Vs/2; thus, for Vs=5.5V, with RL=10k connected to Vs/2=2.75V, Vout=Vs-50mV=5.45V and Iout=(Vout-2.75V)/10k = 0.27mA

    Keep in mind, however, that Vout swing specified above occurs under non-linear operation of the output stage where the output is pushed against the rail.

    For linear operation of the output stage, you need to look at the output swing conditions for AOL measurement,which is specified to be 100mV from either rail.