Question 7.4: Calculate the equivalent noise voltage of two parallel resis...

$\text { Calculate the equivalent noise voltage of two parallel resistors } R_1 \text { and } R_2 \text { [Fig. 7.18(a)]. }$
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Question: 7.22

Assuming that the devices in Fig. 7.59(a) operate in saturation and the circuit is symmetric, calculate the input-referred noise voltage. ...

Since the thermal and 1 / f noise of M_1  a...
Question: 7.21

A differential pair with current-source loads can be configured to act as a large “floating” resistor [7]. Illustrated in Fig. 7.58(a), the idea is to bias M1 and M2 at a very small current so as to obtain a high incremental resistance between A and B, approximately equal to 1/gm1 +1/gm2. Determine ...

Viewing A and B as the outputs and modeling the ci...
Question: 7.20

Calculate the input-referred thermal noise voltage and current of the circuit shown in Fig. 7.49 assuming that all of the transistors are in saturation. ...

To compute the input-referred noise voltage, we sh...
Question: 7.19

Design a resistively-loaded common-source stage with a total input-referred noise voltage of 100 μVrms, a power budget of 1 mW, a bandwidth of 1 GHz, and a supply voltage of 1 V. Neglect channel-length modulation and flicker noise and assume that the bandwidth is limited by the load capacitance. ...

Illustrated in Fig. 7.45(a), the circuit produces ...
Question: 7.18

A student writes the drain flicker noise current of a MOS device as [K/(WLCox f )]g^2 m = [K/(WLCox f )] (√2μnCox (W/L)ID)^2 = 2Kμn ID/(L^2 f ), concluding that the flicker noise current is independent of W. Explain the flaw in this argument. ...

A fair comparison must keep both the overdrive and...
Question: 7.17

Calculate the input-referred 1/ f and thermal noise voltage of the CS stage depicted in Fig. 7.44(a), assuming M1 and M2 are in saturation. ...

We model the 1/ f and thermal noise of the transis...
Question: 7.16

Determine the input-referred thermal noise voltage of the complementary common-source stage shown in Fig. 7.43. ...

With the input signal set to zero, this circuit pr...
Question: 7.15

Calculate the input-referred thermal noise voltage of the amplifier shown in Fig. 7.42(a), assuming both transistors are in saturation. Also, determine the total output thermal noise if the circuit drives a load capacitance CL . What is the output signal-to-noise ratio if a low-frequency sinusoid ...

Representing the thermal noise of M_1  and ...
Question: 7.14