3.2 Continue with 3.1 (Fig. 2). To convert the detected photon current Ip into a voltage signal, we usually use the following front-end shown in Figure 3. a) What is the

absolute sensitivity of the front-end in Fig. 3 (from Ip to Vout) | Vout/IP in terms of RF, R1 and R₂? (4 marks) b) We use RF = 10k, R₁ = 9k2 and R₂ = 3k2; what is the absolute system sensitivity (from I, to Vout) | Vout/Ir? Plot Vout(t). (3, 6 marks) c) If Vout(t) shows an error of ±3mV, how big is the error irradiance measured? (4 marks) Note that the absolute value means ignoring the sign of a number, e.g. 1-3.0] = 3.0. R₂ R₁