Assume the instrumentation amplifier in Figure 9.26 has ideal op-amps. The circuit parameters are (R_{1}=10 mathrm{k} Omega,

Question:

Assume the instrumentation amplifier in Figure 9.26 has ideal op-amps. The circuit parameters are $R_{1}=10 \mathrm{k} \Omega, R_{2}=40 \mathrm{k} \Omega, R_{3}=40 \mathrm{k} \Omega$, and $R_{4}=120 \mathrm{k} \Omega$. Determine $v_{O 1}, v_{O 2}, v_{O}$, and the current in $R_{1}$ for

(a) $v_{I 2}=1.2+0.08 \sin \omega t(\mathrm{~V}), v_{I 1}=1.2-0.08 \sin \omega t(\mathrm{~V})$; and

(b) $v_{I 2}=$ $-0.60-0.05 \sin \omega t(\mathrm{~V}), v_{I 1}=-0.65+0.05 \sin \omega t(\mathrm{~V})$.

Figure 9.26:-

image text in transcribed