LMV722: LMV722 Output swing

SHIGEKI SATO

Part Number: LMV722

Hello,

There was a similar question on the forum before,

I would like to know the maximum value of VOL under the conditions of VCC+=5V, VCC-=GND, RL=8.3KΩ to 3V, full temp range.

Thank you.

0 Ron Michallick 10 months ago

Hello Sato-san, welcome to the e2e forums.

The 2k Vo specs are closest.

Using the worst case VOH, VOL of [4.905, 0.135] ; output current was calculated [1.203, -1.183] mA

The highest current of 8.3k to 3V was calculated [0.241, -0.361] mA

Then interpolated limits [VOH2, VOL2] were calculated based on [IOH(2), IOL(2)]

Output swing high 4.981V (tracks VCC 1:1)

Output swing high 0.041V

Allow at least 10mV more as margin for non linearity errors.

0 SHIGEKI SATO 10 months ago in reply to Ron Michallick

Thank you for your answer.
Could you tell me how VOL=0.041V was calculated from IOL=0.36mA?

Thank you.

+1 SHIGEKI SATO 10 months ago in reply to SHIGEKI SATO

I think I have solved the reason why VOL2=0.041V is calculated.

This is the proportional calculation below.
VOL2=(0.361mA×0.135V)/1.183mA=0.041V

thank you very much.

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