OPA211: Alternative for LT1128CS8

Frederik Baars

Part Number: OPA211
Other Parts Discussed in Thread: OPA1611, LME49990,

Hi,

could you recommend an alternative to the LT1128CS8?

I dont have more details to this point of time unfortunately, but I hope with a Voltage Noise of 1.1nV/√Hz Max at 1kHz the selection should be limited already,

Thanks
Fred

over 6 years ago

0 Michael Steffes over 6 years ago

Guru 48395 points

Hi Fred,

The LME49990 was the closest part, but gone now - see this thread where it points to the OPA1611,

e2e.ti.com/.../565578

0 Frederik Baars over 6 years ago in reply to Michael Steffes

TI__Intellectual 2115 points

Thank you Michael,

I will look into it!

Fred

0 Michael Steffes over 6 years ago in reply to Frederik Baars

Guru 48395 points

And the OPA211 is also a good idea.

0 Thomas Kuehl over 6 years ago

TI__Guru* 93105 points

Hello Fred,

The OPA211 is our closest match to the LT1128CS9. However, do note that the OPA211 1 kHz voltage noise is specified as 1.1 nV/rtHz typical, where as it is specified as a maximum for the LT1128CS9. Therefore, the voltage noise may be somewhat lower, or higher than 1.1 nV/rtHz for the OPA211.

Regards, Thomas

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OPA211: Alternative for LT1128CS8