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How is the equivalent input noise voltage and current?

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in Linear Integrated Circuits by (37.1k points)
How is the equivalent input noise voltage and current?

(a) Noise voltage = V^2/Hz and Noise current = A^2/Hz

(b) Noise voltage = V^3/Hz and Noise current = A^2/Hz

(c) Noise voltage = V^2/Hz and Noise current = A^3/Hz

(d) Noise voltage = V^3/Hz and Noise current = A^3/Hz

I have been asked this question during an interview.

I need to ask this question from Interpreting of Data Sheets topic in portion Operational Amplifier Characteristics of Linear Integrated Circuits

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by (39.8k points)
Right answer is (a) Noise voltage = V^2/Hz and Noise current = A^2/Hz

Unravel the mysteries with: As the electrical noise is random in nature, it is expressed as a root mean square value. The equivalent input noise voltage is expressed as square voltage (V^2/Hz) and the equivalent input noise current as square noise current (A^2/Hz).

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