OPA2387: OPA2387- OPA387

David Okun

Part Number: OPA2387
Other Parts Discussed in Thread: OPA387,

In OPA2387 datasheet- (dated to end of 2020- it is a new part)- TI mention the OPA387 single OpAmp. Yet it does not appear as a viable Active TI product, nor can we find its pinout anywhere or its full datasheet. Is the OPA387 an Active part? because this new family represents very good High Precision Zero Drift OpAmps: The OPA2387 seems good enough (or even better in some parameters) as a replacement for the AD8629 which we are using a lot, and if the OPA387 was an Active part it could have been a good replacement for the single OpAmp AD8628 we are also using a lot. Do TI intend to produce the OPA387 soon?

over 4 years ago

0 Marek Lis over 4 years ago

TI__Guru 67881 points

David Okun said:
AD862

A single OPA387 in a standard SOT-23-5 package (see below) is scheduled to be introduced next month (Sep'21) - it will have better maximum input offset voltage and drift than AD8628.

0 Alfred Fuchs1 over 4 years ago

Intellectual 320 points

I am confused by the definition of the offset voltage in the datasheet.

Under which conditions is the maximum 1 (first line) / 1.5(second line) / 2µV(other lines)?

0 Clemens Ladisch over 4 years ago in reply to Alfred Fuchs1

Guru 317370 points

The default test conditions are listed above the table. The "test conditions" column specifies how the test conditions for this line differ from the default.

0 Alfred Fuchs1 over 4 years ago in reply to Clemens Ladisch

Intellectual 320 points

But does this make sense?

Over the whole temperature range (first line) it is 1µV, and else (when?? Third line) it is 2µV?

I still don't get it.

0 Marek Lis over 4 years ago in reply to Alfred Fuchs1

TI__Guru 67881 points

Alferd,

You are correct. There is a typo in OPAx387 datsheet - it should look as shown below.

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OPA2387: OPA2387- OPA387