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The 1st page of a datasheet is written by marketing. It can still give you an idea of what the chip is about, but it often contains the performance data under the best conditions. The conditions ...
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#4: Post edited
by
Nick Alexeev
·
2024-11-09T18:50:33Z (12 days ago)
- The 1st page of a datasheet is written by marketing. It can still give you an idea of what the chip is about, but it often contains the performance data under the best conditions. The conditions are rarely specified on the 1st page.
- Always check the electrical characteristics section and the charts. That’s the engineering information, and the source of truth. If tables & charts don’t agree with the 1st page, then go by tables & charts.
When the 1st page doesn’t fully agree with tables & charts, that’s rarely an engineering error, that’s usually marketing and specsmanship.
- The 1st page of a datasheet is written by marketing. It can still give you an idea of what the chip is about, but it often contains the performance data under the best conditions. The conditions are rarely specified on the 1st page.
- Always check the electrical characteristics section and the charts. That’s the engineering information, and the source of truth. If tables & charts don’t agree with the 1st page, then go by tables & charts.
- When the 1st page doesn’t fully agree with tables & charts, that’s rarely an engineering error, that’s usually marketing and specsmanship.
- > It was clarified with Texas Instruments, and what they claim is that 80MHz is applicable bandwidth for A>=2, and 45MHz is applicable for unity gain ([question on the TI forum](https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1431163/opa2211a-clarification-on-gbw)): [...]
- I have not yet seen a definition like this, is this considered common practice?
- I remember seeing other op-amp datasheets with different GBWP (gain-bandwidth product) specifications for different bands. I wouldn't say that it's all that common.
- [Can't seem to find what op-amp model it was. It was a high speed op-amp with GBWP around 2 GHz. I'll add a link here when I come across it again, eventually.]
#3: Post edited
by
Nick Alexeev
·
2024-10-30T17:40:06Z (22 days ago)
- The 1st page of a datasheet is written by marketing. It can still give you an idea of what the chip is about, but it often contains the performance data under the best conditions. The conditions are rarely specified on the 1st page.
- Always check the electrical characteristics section and the charts. That’s the engineering information, and the source of truth. If tables & charts don’t agree with the 1st page, then go by tables & charts.
When the 1st page doesn’t fully agree with tables & charts, that’s rarely an engineering error, that’s usually marketing and specsmanchip.
- The 1st page of a datasheet is written by marketing. It can still give you an idea of what the chip is about, but it often contains the performance data under the best conditions. The conditions are rarely specified on the 1st page.
- Always check the electrical characteristics section and the charts. That’s the engineering information, and the source of truth. If tables & charts don’t agree with the 1st page, then go by tables & charts.
- When the 1st page doesn’t fully agree with tables & charts, that’s rarely an engineering error, that’s usually marketing and specsmanship.
#2: Post edited
by
Nick Alexeev
·
2024-10-30T15:37:36Z (22 days ago)
- The 1st page of a datasheet is written by marketing. It can still give you an idea of what the chip is about, but it often contains the performance data under the best conditions. The conditions are rarely specified on the 1st page.
- Always check the electrical characteristics section and the charts. That’s the engineering information, and the source of truth. If tables & charts don’t agree with the 1st page, then go by tables & charts.
If the 1st page doesn’t fully agree with tables & charts, that’s rarely an engineering error, that’s marketing and specsmanchip.
- The 1st page of a datasheet is written by marketing. It can still give you an idea of what the chip is about, but it often contains the performance data under the best conditions. The conditions are rarely specified on the 1st page.
- Always check the electrical characteristics section and the charts. That’s the engineering information, and the source of truth. If tables & charts don’t agree with the 1st page, then go by tables & charts.
- When the 1st page doesn’t fully agree with tables & charts, that’s rarely an engineering error, that’s usually marketing and specsmanchip.
#1: Initial revision
by
Nick Alexeev
·
2024-10-30T14:39:29Z (22 days ago)
The 1st page of a datasheet is written by marketing. It can still give you an idea of what the chip is about, but it often contains the performance data under the best conditions. The conditions are rarely specified on the 1st page. Always check the electrical characteristics section and the charts. That’s the engineering information, and the source of truth. If tables & charts don’t agree with the 1st page, then go by tables & charts. If the 1st page doesn’t fully agree with tables & charts, that’s rarely an engineering error, that’s marketing and specsmanchip.