D7.60. Source-coupled amplifier design. Design a source- coupled differential pair amplifier with a CMRR of at least 70d
Posted: Fri May 20, 2022 10:14 pm
- D7 60 Source Coupled Amplifier Design Design A Source Coupled Differential Pair Amplifier With A Cmrr Of At Least 70d 1 (159.58 KiB) Viewed 16 times
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D7.60. Source-coupled amplifier design. Design a source- coupled differential pair amplifier with a CMRR of at least 70dB at a frequency of 60 Hz. The active devices that are available are matched n-channel JFETs with lass = 5 mA, 0.02. In addition, matched npn BJTS = 10-14 A, and VA = 100 V may be used. Resistors and capacitors of any value may also be used. The available power-supply voltages are VDD = +15 V and Vo = -2V, and 1 = with B = 200, IS =
-Vs = -15V. The 5-k2 resistive load is single ended (i.e., one end is grounded). The inputs can be dc coupled, but the output should be ac coupled with a 100-u F capacitor. Use a SPICE program to demonstrate that your design meets all of the desired specifications. There are many solutions to this problem. To attain the desired CMRR, a high-impedance current source may be needed. Consider using a Wilson BJT current source to bias the JFET pair.