5.3 Find i, in the circuit in Fig. P5.3 if the op amp is ideal. PSPICE MULTISIM Figure P5.3 10 kn 96V -6V 0.5 mA 32.5 kn35 kn

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**Exercise 5.3:**

Find \( i_o \) in the circuit in Figure P5.3 if the op amp is ideal.

**Figure P5.3 Explanation:**

The circuit consists of an operational amplifier with two input resistances and feedback. The op amp is powered by \(\pm 6 \text{ V}\) supplies. A current source of \(0.5 \text{ mA}\) is shown connected. The resistances in the circuit are \(10 \text{ k}\Omega\) on the feedback path, \(2.5 \text{ k}\Omega\), and \(5 \text{ k}\Omega\). The output current \(i_o\) needs to be determined.

---

**Exercise 5.4:**

The op amp in the circuit in Figure P5.4 is ideal.

a) Calculate \( v_o \) if \( v_a = 4 \text{ V} \) and \( v_b = 0 \text{ V} \).

b) Calculate \( v_o \) if \( v_a = 2 \text{ V} \) and \( v_b = 0 \text{ V} \).

c) Calculate \( v_o \) if \( v_a = 2 \text{ V} \) and \( v_b = 1 \text{ V} \).

d) Calculate \( v_o \) if \( v_a = 1 \text{ V} \) and \( v_b = 2 \text{ V} \).

e) If \( v_b = 1.6 \text{ V} \), specify the range of \( v_a \) such that the amplifier does not saturate.

**Figure P5.4:**

The circuit involves an operational amplifier with multiple input and feedback resistors. It is powered by a \(16 \text{ V}\) supply with components including \(20 \text{ k}\Omega\), \(40 \text{ k}\Omega\), and \(100 \text{ k}\Omega\) resistors connected to different parts of the circuit. The voltages \(v_a\) and \(v_b\) act as input voltages, impacting the output voltage \(v_o\).
Transcribed Image Text:**Exercise 5.3:** Find \( i_o \) in the circuit in Figure P5.3 if the op amp is ideal. **Figure P5.3 Explanation:** The circuit consists of an operational amplifier with two input resistances and feedback. The op amp is powered by \(\pm 6 \text{ V}\) supplies. A current source of \(0.5 \text{ mA}\) is shown connected. The resistances in the circuit are \(10 \text{ k}\Omega\) on the feedback path, \(2.5 \text{ k}\Omega\), and \(5 \text{ k}\Omega\). The output current \(i_o\) needs to be determined. --- **Exercise 5.4:** The op amp in the circuit in Figure P5.4 is ideal. a) Calculate \( v_o \) if \( v_a = 4 \text{ V} \) and \( v_b = 0 \text{ V} \). b) Calculate \( v_o \) if \( v_a = 2 \text{ V} \) and \( v_b = 0 \text{ V} \). c) Calculate \( v_o \) if \( v_a = 2 \text{ V} \) and \( v_b = 1 \text{ V} \). d) Calculate \( v_o \) if \( v_a = 1 \text{ V} \) and \( v_b = 2 \text{ V} \). e) If \( v_b = 1.6 \text{ V} \), specify the range of \( v_a \) such that the amplifier does not saturate. **Figure P5.4:** The circuit involves an operational amplifier with multiple input and feedback resistors. It is powered by a \(16 \text{ V}\) supply with components including \(20 \text{ k}\Omega\), \(40 \text{ k}\Omega\), and \(100 \text{ k}\Omega\) resistors connected to different parts of the circuit. The voltages \(v_a\) and \(v_b\) act as input voltages, impacting the output voltage \(v_o\).
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