Hi Guys,
I have a question regarding output drive current of an opamp. I have LM324 hooked up with R1=100k and R2=10k non-inverting configuration. I am using LM324 and running simulations on Multisim with Vcc=5V and input to the opamp being digital 5V or 0V, I am trying to obtain a current of 1mA. But, the simulation shows that the output current is around 41mA.
I am attaching images of circuits I had designed on Multisim. please let me know If I have them right. Any suggestions or improvements most welcome. I am trying to achieve the specification to drive a manufactured PCB which says "Signal can be supplied (to the PCB I mentioned) directly from a PLC (6mA if the output from the PLC is 24V or 1mA if the output is 5v)"
On an other note, can someone help me with a voltage regulator circuit to step down 24V to 5V (0.5A) using 7805? I am trying to replace a blackberry adaptor (which supplies 5V 0.5A) with the voltage regulator that supplies the same rating.
Thanks a bunch!!
Best,
V
I have a question regarding output drive current of an opamp. I have LM324 hooked up with R1=100k and R2=10k non-inverting configuration. I am using LM324 and running simulations on Multisim with Vcc=5V and input to the opamp being digital 5V or 0V, I am trying to obtain a current of 1mA. But, the simulation shows that the output current is around 41mA.
I am attaching images of circuits I had designed on Multisim. please let me know If I have them right. Any suggestions or improvements most welcome. I am trying to achieve the specification to drive a manufactured PCB which says "Signal can be supplied (to the PCB I mentioned) directly from a PLC (6mA if the output from the PLC is 24V or 1mA if the output is 5v)"
On an other note, can someone help me with a voltage regulator circuit to step down 24V to 5V (0.5A) using 7805? I am trying to replace a blackberry adaptor (which supplies 5V 0.5A) with the voltage regulator that supplies the same rating.
Thanks a bunch!!
Best,
V
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