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Part Number: OPA2365 Other Parts Discussed in Thread: LMV797
Hi,
Is there any difference in architecture between single supply and dual supply op-amps. Can I use positive and negative supply in an single supply such as op-amp OPA2365.
The single supply op-amp is usually specified if there is a digital logic pin that needs some common-mode (usually GND) reference, which is no where the case for the OPA2365. You might also want to refer to Section 7.1: Overview that mentions the part could work for both single as well as dual supplies, which is usually the case for most op-amps.
I got your point, I have a small doubt, do all dual supply op-amps can be used as single side op-amp and vice versa. Is there any internal hardware difference between single supply or dual supply op-amp. Op-amp such as LMV797 is a single supply op-amp or dual supply op-amp.
What to look definitely in a datasheet to qualify any op-amp as single supply or dual supply op-amp.
Yes. All op amps can be used as single or dual supply.
Voltage is just a measure of potential between two points. A LMV797 will work the same for a V- =0V and V+ =5V supply with a -0.3 to 4V input as it does for a V- =-2.5V and V+ =2.5V supply with a -2.8V to 1.5V input. All that matters is how each pin is referenced to the supply rails.
