
2.5 The circuit shown in Fig. E2.5(a) can be used to implement a transresistance amplifier (see Table 1.1 in Section 1.5). Such circuits are often used to amplify weak current signals, such as those from photodiodes that detect light for optical communication or proximity sensors. Find the value of the input resistance Ri, the transresistance Rm, and the output resistance Ro of the transresistance amplifier. If the signal source shown in Fig. E2.5(b) is connected to the input of the transresistance amplifier, find the amplifier output voltage.
2.5 The circuit shown in Fig. E2.5(a) can be used to implement a transresistance amplifier (see Table 1.1 in Section 1.5). Such circuits are often used to amplify weak current signals, such as those from photodiodes that detect light for optical communication or proximity sensors. Find the value of the input resistance Ri, the transresistance Rm, and the output resistance Ro of the transresistance amplifier. If the signal source shown in Fig. E2.5(b) is connected to the input of the transresistance amplifier, find the amplifier output voltage.