Hi, Team.
i've been asked by Customer as below.
will LMV932,942 work properly if the current should've gone toward opamp output from load like blue line shown as below
according to customer, its amount of current is 8mA.
Q1. is this problem? will IC work correctly?
Q2. is there any information how much amount of current will make IC damage?
Hello Takahashi-san,
The part should be ok at 8mA. This setup is referred to as "sinking" current. The output of the amplifier is capable of passing current from the output node to GND.
The thing your customer needs to be aware of is the fact that the output voltage of the amplifier will be limited in this scenario. In other words, the more current that the amplifier tries to sink or source, the further from the rail the output voltage will go. This is because the amplifier's ability to sink or source current gets worse as you approach the rail.
What you need to find out from the customer is how much voltage they expect to see at the output. Then, use figure 6 of the datasheet, which is also shown below. This figure will let you know whether or not the op amp can sink the required 8mA for the given conditions.
Please let me know if you have any further questions.
Regards,
Daniel
