This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

LMH5401: Output current control and comparing simulation results.

Part Number: LMH5401

Hello, experts.

I plan to use LMH5401(DC output, BW 1.2GHz) to MMIQ-0416HSM.

LMH5401 output current is typical 50mA for Vs=5V, 40mA for Vs=3.3V on datasheet, but MMIQ-0416HSM maximum input current is only 30mA.

Can I control the output current of LMH5401?

In case of simulation using 'PSpice for TI', the result of LMH5401 output current is about 10mA. 

When I design circuits as below, is the output current 10mA or 50mA?

Thanks,

Jeho C.

  • Hi Jeho,

    For LMH5401:

    For a minimum supply voltage of 3.15V, we have an Iq (Quiescent current) of 50 mA

    For a maximum supply voltage of 5.25V, we have an Iq (Quiescent current) of 62 mA

    And for an absolute maximum supply voltage of 5.5V, we have an input current of 10 mA and output current of 100 mA. 

    Can you please provide more info on the circuitry/supply voltages used on PSpice? We can help you further. 

    - Venkat