26. Show that the circuit below functions as a DAC (digital to analogue converter) by calculating the output voltage VoUT as a function of Vo and the switch settings So, S1, S2, and S3 (which can have a value of 0 or 1). Vo R R R 2R 2R 2R 2R 2R OF 11 الم R V- v+ -O VOUT When Vo=10V, what is the range of VOUT? Design a simple circuit to rescale the output to the range 0 to +5V

Determine the required values of R1, R2, Rc, and RE. Also, determine the expected output voltage if the input voltage is equal to 0.001 Vrms. GIVEN: Zi = 1145.66 ohms Zo = 3.3 Kohms Beta = 80 Vcc = 20V R1 + R2 = 43.7 Kohms Av = 167.43 Ai = 58.13

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Subject: Analog Electronic and Circuit Please Solve this question

The three opamps used in this instrumentation amplifier are one of the types shown in Table Q2. Without detailed calculation, pick an opamp type and justify your choice Component CMRR (dB) Price (£) LT1180 116 2.08 85 4.2 TLC2201 95 0.6 LMH6642 88 1.28 AD8091 Table Q2

The circuit shown can be used as a simple 3-bit digital-to-analog converter (DAC). The individual bits of the binary input word (b1 b2 b3) are used to control the position of the switches, with the resistor connected to 0 V if bi = 0 and connected to VREF if bi = 1. (a) What is the output voltage for the DAC as shown with input data of (011) if VREF = 5.0 V? (b) Suppose the input data change to (100). What will be the new output voltage?(c)Makeatablegivingtheoutputvoltagesfor all eight possible input data combinations.

a) For an opamp, the input bias current Ib =60uA and the input offset current lio= 10uA Find the input base currents and In b) Design an opamp circuit with the following output: Vo = - Vin/4 + 2 For the circuit given below Given :Vin-0.2V, Vsat= 12V D Identify (name) the circuit (stage 1 and 2) O Find the output voltage Vo and the current through the load 4ka 0 Find Vo if the resistor 2kn opens 10 k Stage Stage 2 Vo Vin

1. The input signal in Figure 1(a) is applied to the comparator in Figure 1(b).Draw the output showing its proper relationship to the input signal. Assume the maximum output levels of the comparator are (+/-)12 V. Values of R₁ and R₂ are as follows. (a) R₁ = 8 K Ohm, R₂ = 12 K Ohm (b) R₁ = 12 K Ohm, R₂ = 8 K Ohm n Figure 1(a) 5 V- Vin 0 2. Find Output Voltage Vour for the circuit in figure - 2, below. R₁ VINI = +1 VOM 100 K Ohm R₂ VIN2 = +2 VOM 200 K Ohm R3 VIN3+3 VC www 300 K Ohm R4 VIN4+4 VO www 400 K Ohm R₂ www 50 K Ohm +10 Volt Figure - 2 Figure 1(b) VOUT Vout

Question: The circuit below, Figure 1, shows an amplifier with a diode in the feedback. The amplifier can be considered to be ideal. The diode has a threshold voltage of 0.6 V. The values for the components are R1 is 1 k0, R2 = R3 = 9 k. Determine the transfer function of this circuit. Vin ww R1 R2 www R3 741 D1 Vout

-60m It is the the maximum frequency that an op-amp may operate which depends on both the bandwidth (BW) and slew rate (SR) parameters of the op-amp. O Cut-off frequency O Unity Gain Bandwidth O Unity Gain Frequency O Maximum Signal Frequency