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Q&A OPA2211 datasheet error

Looking at Texas Instruments opamp OPA2211it mentions GBW of 80MHz at a gain of 100, and 45MHz at gain of 1: Looking at the bandwidth graph from Figure 10 in datasheet: It looks like 80MHz is...

3 answers  ·  posted 4d ago by Elleanor Lopez‭  ·  last activity 20h ago by Elleanor Lopez‭

Question datasheet opamp
#2: Post edited by user avatar Nick Alexeev‭ · 2024-10-30T15:35:37Z (1 day ago)
  • Looking at Texas Instruments opamp [OPA2211](https://www.ti.com/lit/ds/symlink/opa2211-ht.pdf?ts=1730130156089&ref_url=https%253A%252F%252Fwww.ti.com%252Famplifier-circuit%252Fop-amps%252Fprecision%252Fproducts.html)it mentions GBW of 80MHz at a gain of 100, and 45MHz at gain of 1:
  • ![Image_alt_text](https://electrical.codidact.com/uploads/2vrfuttko1b41mlozrjx7dhzv00b)
  • Looking at the bandwidth graph from Figure 10 in datasheet:
  • ![Image_alt_text](https://electrical.codidact.com/uploads/ufag8q8uwr8v7lyvq22od4rldv1s)
  • It looks like 80MHz is unity gain bandwidth, and at a gain of 100 the bandwidth is around 800kHz as would be expected. I could not find any errata or other posts on forums about this. Is this just a datasheet mistake?
  • Looking at Texas Instruments opamp [OPA2211](https://www.ti.com/lit/ds/symlink/opa2211-ht.pdf?ts=1730130156089&ref_url=https%253A%252F%252Fwww.ti.com%252Famplifier-circuit%252Fop-amps%252Fprecision%252Fproducts.html)it mentions GBW of 80MHz at a gain of 100, and 45MHz at gain of 1:
  • ![screenshot of the 1st page of a datasheet](https://electrical.codidact.com/uploads/2vrfuttko1b41mlozrjx7dhzv00b)
  • Looking at the bandwidth graph from Figure 10 in datasheet:
  • ![chart](https://electrical.codidact.com/uploads/ufag8q8uwr8v7lyvq22od4rldv1s)
  • It looks like 80MHz is unity gain bandwidth, and at a gain of 100 the bandwidth is around 800kHz as would be expected. I could not find any errata or other posts on forums about this. Is this just a datasheet mistake?
opamp
datasheet opamp
#1: Initial revision by user avatar Elleanor Lopez‭ · 2024-10-28T15:50:45Z (4 days ago) 
OPA2211 datasheet error
Looking at Texas Instruments opamp [OPA2211](https://www.ti.com/lit/ds/symlink/opa2211-ht.pdf?ts=1730130156089&ref_url=https%253A%252F%252Fwww.ti.com%252Famplifier-circuit%252Fop-amps%252Fprecision%252Fproducts.html)it mentions GBW of 80MHz at a gain of 100, and 45MHz at gain of 1:

![Image_alt_text](https://electrical.codidact.com/uploads/2vrfuttko1b41mlozrjx7dhzv00b)

Looking at the bandwidth graph from Figure 10 in datasheet:
![Image_alt_text](https://electrical.codidact.com/uploads/ufag8q8uwr8v7lyvq22od4rldv1s)

It looks like 80MHz is unity gain bandwidth, and at a gain of 100 the bandwidth is around 800kHz as would be expected. I could not find any errata or other posts on forums about this. Is this just a datasheet mistake?
opamp