![D **1.81 A transconductance amplifier having the equivalent circuit shown in Table 1.1 is fed with a voltage source Vs having a source resistance Rs, and its output is connected to a load consisting of a resistance RL in parallel with a capacitance CL. For given values of Rs, RL, and CL, it is required to specify the values of the amplifier parameters Ri, Gm, and Ro to meet the following design constraints: (a) At most, x% of the input signal is lost in coupling the signal source to the amplifier (i.e., Vi ≥ [1 − (x/100)]Vs). (b) The 3-dB frequency of the amplifier is equal to or greater than a specified value f3dB. (c) The dc gain Vo/Vs is equal to or greater than a specified value A0. Show that these constraints can be met by selecting Find Ri, Ro, and Gm for Rs = 10 kΩ, x = 10%, A0 = 100 V/V, RL = 10 kΩ, CL = 20 pF, and f3dB = 2 MHz. 90 k; 6.61 k; 27.9 mA/V](https://i0.wp.com/electricalstudent.com/wp-content/uploads/2023/08/t1.1-5-639x425.png)
D **1.81 A transconductance amplifier having the equivalent circuit shown in Table 1.1 is fed with a voltage source Vs having a source resistance Rs, and its output is connected to a load consisting of a resistance RL in parallel with a capacitance CL. For given values of Rs, RL, and CL, it is required to specify the values of the amplifier parameters Ri, Gm, and Ro to meet the following design constraints: (a) At most, x% of the input signal is lost in coupling the signal source to the amplifier (i.e., Vi ≥ [1 − (x/100)]Vs). (b) The 3-dB frequency of the amplifier is equal to or greater than a specified value f3dB. (c) The dc gain Vo/Vs is equal to or greater than a specified value A0. Show that these constraints can be met by selecting Find Ri, Ro, and Gm for Rs = 10 kΩ, x = 10%, A0 = 100 V/V, RL = 10 kΩ, CL = 20 pF, and f3dB = 2 MHz. 90 k; 6.61 k; 27.9 mA/V
![D **1.81 A transconductance amplifier having the equivalent circuit shown in Table 1.1 is fed with a voltage source Vs having a source resistance Rs, and its output is connected to a load consisting of a resistance RL in parallel with a capacitance CL. For given values of Rs, RL, and CL, it is required to specify the values of the amplifier parameters Ri, Gm, and Ro to meet the following design constraints: (a) At most, x% of the input signal is lost in coupling the signal source to the amplifier (i.e., Vi ≥ [1 − (x/100)]Vs). (b) The 3-dB frequency of the amplifier is equal to or greater than a specified value f3dB. (c) The dc gain Vo/Vs is equal to or greater than a specified value A0. Show that these constraints can be met by selecting Find Ri, Ro, and Gm for Rs = 10 kΩ, x = 10%, A0 = 100 V/V, RL = 10 kΩ, CL = 20 pF, and f3dB = 2 MHz. 90 k; 6.61 k; 27.9 mA/V](https://i0.wp.com/electricalstudent.com/wp-content/uploads/2023/08/t1.1-5.png?ssl=1)
D **1.81 A transconductance amplifier having the equivalent circuit shown in Table 1.1 is fed with a voltage source Vs having a source resistance Rs, and its output is connected to a load consisting of a resistance RL in parallel with a capacitance CL. For given values of Rs, RL, and CL, it is required to specify the values of the amplifier parameters Ri, Gm, and Ro to meet the following design constraints: (a) At most, x% of the input signal is lost in coupling the signal source to the amplifier (i.e., Vi ≥ [1 − (x/100)]Vs). (b) The 3-dB frequency of the amplifier is equal to or greater than a specified value f3dB. (c) The dc gain Vo/Vs is equal to or greater than a specified value A0. Show that these constraints can be met by selecting Find Ri, Ro, and Gm for Rs = 10 kΩ, x = 10%, A0 = 100 V/V, RL = 10 kΩ, CL = 20 pF, and f3dB = 2 MHz. 90 k; 6.61 k; 27.9 mA/V