what is difference between OTA and OP-amp?

[yikwon]

ota opamp

I think they are same architecture.

why different name?

 

[neo79]

difference between ota and op amp

from my understanding, it is called ota when it only drives capacitive load

 

[kishore2k4]

ota op amp

In simple terms,
Op-Amp is Voltage Controlled Voltage Source
OTA is Voltage Controlled Current Source

 

[ShuklaS]

ota vs op amp

You get more information on
https://en.wikipedia.org/wiki/Operational_transconductance_amplifier

 

[crossbow_123]

difference between opamp and ota

I think they are same architecture.

why different name?

OTA is currrent OP
OP-amp is voltage OP

 

[iamxo]

difference between op-amp and ota

add something:

OTA's output resistance is very large.

while OPAMP's is small.

 

[diemilio]

difference between op amp and other amplifiers

OTA is a TRANSCONDUCTANCE amplifier which means that it's GAIN is given by Io/Vin=A (For a certain Voltage input you will have an output current Io which will be A times Vin). This means that the output current is independent of your load value (in theory).

an OPAMP is a Voltage to Voltage amplifier. Its GAIN is given by Vo/Vin=A, which means that the output voltage it's independent of the load attached to the circuit.

hope this helps,

diemilio

 

[northeast1]

what is ota opamp

I think they are same architecture.

why different name?

OTA is the current mode
OP-amp is the voltage mode

 

[OEIC]

otas and opamp

FOR SIMPLISITY
OP-amp = OTA + Buffer

 

[zio_nneo]

opamp ota

Op-Amp is Voltage Controlled Voltage Source
OTA is Voltage Controlled Current Source

Added after 1 minutes:

Op-Amp is Voltage Controlled decive
where as OTA is Current controller device

 

[shake2004]

difference between op amp and ota

capability of drving is different i think

 

[sri8]

ota versus op

OTA is opamp without buffer.
Opamp can drive high capacitive loads and resitive loads whereas OTA can drive only small capacitive loads