LM324: LM324DR

Song Youwei

Part Number: LM324

Tool/software:

Hello, I would like to inquire whether the LM324DR is single-supply or dual-supply powered. If it is dual-supply, what is its power supply range?

I powered it with ±5V, and the chip is operating normally.

11 months ago

0 Chris Featherstone 11 months ago

TI__Mastermind 31775 points

Hi Song,

The power supply can be split supply such as the +/-5V that you have provided or a split supply of 10V. The supply range is shown below for the the families. They can be split supply or single supply.

Best Regards,
Chris Featherstone

0 Song Youwei 11 months ago in reply to Chris Featherstone

Prodigy 80 points

I have a question: Does Vcm refer to the common-mode voltage between IN+ and IN-? According to this table, if I supply ±5 V, does the common-mode voltage range [0, VCC–2] mean that the common-mode input voltage on IN+ and IN- cannot be negative values such as –1 V or –2 V?

0 Chris Featherstone 11 months ago in reply to Song Youwei

TI__Mastermind 31775 points

Hi Song,

Yes you are correct. On a single supply the common mode voltage cannot go negative.

Song Youwei said:
Does Vcm refer to the common-mode voltage between IN+ and IN-?

Yes, the Vcm is refers to the common mode voltage between IN+ and IN-.

Best Regards,
Chris Featherstone

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LM324: LM324DR