) The current-mirror circuit shown in Figure 3 utilizes pnp transistors having Isl 10-5A and/s2-2...
2. In the following current mirror circuit, Vcc -10V, and the three transistors, Q1, Q2, Q3, have the same saturation current (i.e.,IssIs), and with V for active mode is 0.7V. Then, the three beta values are given by: β91-100, ßQ2-50, and ßQ3-200. The thermal voltage is ντ-25mV. Assuming that you need an output current of i1mA: ref db (a) Find the collector, base, and emitter current for all three Q1 O2 transistors when ia 1mA. (b) Find the refern ie....
All nMOS transistors in the circuit shown are identical, have k' WIL 4 mA/V2 and operate in the active region lp 1/2k 'W/L(Vas-V)']. Knowing that the de voltage VD4 at the drain of Q4-2 V. Determine: 1. The value of the bias current lo 2. The value of Vov 3. The transconductance gm of Q1 and Q2 4. The voltage gain vo/v 5. The voltage gain when a source resistance R, 1K2 is added to the source of Qi and...
R, Figure P7.49 .50 Figure P7.50 shows a current source realized using a current mirror with two matched transistors Q, and o, . Two equal resistances R, are inserted in the source leads to increase the output resistance of the current source. If Q, is operating at gm 1 mA/V and has VA-= 10 V, and if the maximum allowed de voltage drop across R, is 0.3 V, what is the maximum avail- able output resistance of the current source?...
Beta = 100 10 V IRE R3 Fig. 1: A current source and mirror circuits using npn BJTS Design the current source and mirror circuit in Fig. 1 such that IREF = 10 mA (13%) nominally. Use supply of Vcc = 10 V, and use an average value for ß that you found in your previous experiments or that from the datasheet. Find the value of R, that satisfies the design requirements. In your pre- lab, perform the following: 1....
Q1: The cascode current source in Fig. 8.4.1 utilizes two identical PMOS transistors fabricated in a V, 0.18-um CMOS process for which VDD 1.8 V pcor - 100 ???2 vG2 02 Design the circuit to obtain 1-50 ?? and Ro-I ?? and to allow for the maximum pos- sible voltage swing at the output terminal of the current source. Utilize Vov 0.2 V. Specify the 01 tor Gl ify the required values of the dc bias voltages VGI and VG2....
1. Consider the following current mirror combination, where all transistors have the same kn'(W/L) = kp'(W/L) = 2mA/V2, and VTN-1У, VTP--1V. It is also given that VDD1-10V, VDD2-8V. Remember that for saturation the drain current is given by IDー½ k,"(W/L) (VGS-Yn)" for NMOS and ID ½ kp"(WL) (VGS-V,»)2 for PMOS. You can ignore the channel modulation for all transistors. (a) Find the value of R so that I.-1mA. (b) Are transistors Q1, Q2, Q3 in saturation? (c) What is the...
Problem 1: All the transistors in the circuit have β-110, VA-00 Assuming that approximately IC3-220μΑ and IC4-1.9mA, A] Evaluate Rout of the current source and the figure of merit of the current source C] Find the gains of the differential pair (single-ended output), the common-emitter stage, and the overall gain , the common-emitter stage, +15V RC1 RC2 Q4 Q1 Q2 VO V2 RC4 R1 Q3 R2 R3 -15V Problem 1: All the transistors in the circuit have β-110, VA-00 Assuming...
Ignore PSpice Simulation Design the BJT current mirror shown in Figure 1 to replicate a 1 mA reference current at the collector of 02. Assume a scale current of 6.7 fA, V 74 V, and B-200. 1. Determine Ri such that IREF- 1 mA is the current, Ic, flowing into the collector of Qi 2. Calculate Io/IREF, where Io- Ic2. 3. Simulate the circuit in Figure 1 in PSpice. Use the SEDRA_LIB library for the Q2N3904 and enter the appropriate...
Note: VDD = VSS = 5V, not VDD = -VSS = 5V Problem 5: 13 pts The circuit shown below is called a current mirror. Essentially the output current Ip2 is multiples of the input current Ip1. Both transistors have the same VT = 1V. Transistor Q2 has k2 that is five times ki (transistor Q1 constant). Let iD2 ID1 02 V. (a) Find the value of R that makes the output current Ip2 0.5mA (assume Q2 is in SAT)....
For the differential amplifier shown in Figure 6: Assume well-matched transistors and = 100 for all transistors: a) Why it is important to use well-matched transistors in differential amplifier circuits? What is the potential influence of mismatched transistors on the performance of the differential amplifier? b) Determine the resistor values (R1, R2 and R3) such that the emitter coupled current IE = 0.5 mA and VC1 = 3 V. c) Draw the ac equivalent circuit for the single ended...