Hi,
Could you tell me the bias current specifications of the built-in Opamp?
Customer needs that information to calculate the error.
If disclosure is difficult,
Please tell me only the design target values and current orders (pA etc...).
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Hi,
Could you tell me the bias current specifications of the built-in Opamp?
Customer needs that information to calculate the error.
If disclosure is difficult,
Please tell me only the design target values and current orders (pA etc...).
Hi Yusuke-san,
As Kai mentioned, this is specified in the datasheet under "Input bias current".
Additionally, this excel error calculator can be used to estimate typical and worst case error values: https://e2e.ti.com/support/amplifiers/f/14/p/815789/3019110#3019110
Thank you Kai!
Hi Kai-san, Alex-san,
Thank you for your response and support.
”IIB” described in the data sheet has current added from VCM.
However, Customer wants the bias current information only for amplifier because of the exact calculation.
Could you tell me the bias current specifications?
If disclosure is difficult,
Please tell me only the design target values and current orders (pA etc...).
Best regards,
Yusuke
Hi Alex-san,
Thank you for your response.
As the background of this question, the degree of bias current in relation to VCM is uA level.
If AMP’s bias current is pA level, the tolerance of AMP's bias current can regard as that doesn't matter VCM's bias current.
Therefore, we don’t need precise value, we only need xxA level.
If this contains confidential contents, is it possible to send my direct E-mail address?
My email is : tsukui-y@macnica.co.jp
Best regards,
Yusuke