docMicroelectronics Differential Amplifier Intro. Differential Amplifier Intro.
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Microelectronics Differential Amplifier Intro. Differential Amplifier Intro.
12/3/2013 In this chapter, we will: Microelectronics Describe the characteristics and terminology of the ideal differential amplifier. Describe the characteristics of and analyze: the basic bipolar differential amplifier. the basic FET differential amplifier. BJT and FET differential amplifiers with active loads. various BiCMOS circuits. Analyze the frequency response of the differential amplifier. Circuit Analysis and Design Donald A. Neamen Chapter 11 Differential Amplifiers Neamen Microelectronics, 4e McGraw-Hill Chapter 11-1 Neamen Differential Amplifier Intro. Neamen Microelectronics, 4e McGraw-Hill Chapter 11-3 Microelectronics, 4e McGraw-Hill Chapter 11-2 Differential Amplifier Intro. Neamen Microelectronics, 4e McGraw-Hill Chapter 11-4 1 12/3/2013 Differential Amplifier Intro. Differential Amplifier Intro. Neamen Microelectronics, 4e McGraw-Hill Chapter 11-5 Neamen Differential Amplifier Intro. Neamen Microelectronics, 4e McGraw-Hill Chapter 11-7 Microelectronics, 4e McGraw-Hill Chapter 11-6 BJT Differential-Pair Amplifier Neamen Microelectronics, 4e McGraw-Hill Chapter 11-8 2 12/3/2013 BJT Differential-Pair Amplifier Neamen Microelectronics, 4e McGraw-Hill Chapter 11-9 BJT Differential-Pair Amplifier BJT Differential-Pair Amplifier Neamen Microelectronics, 4e McGraw-Hill Chapter 11-10 Variation of Q-Point for Diff-Amp Common-mode input voltage varied between +5V to -9.3V Neamen Microelectronics, 4e McGraw-Hill Chapter 11-11 Neamen Microelectronics, 4e McGraw-Hill Chapter 11-12 3 12/3/2013 DC Transfer Characteristics: Bipolar Differential Amplifier Neamen Microelectronics, 4e McGraw-Hill Chapter 11-13 DC Transfer Characteristics: Bipolar Differential Amplifier Neamen DC Transfer Characteristics: Bipolar Differential Amplifier Neamen Microelectronics, 4e McGraw-Hill Chapter 11-15 Microelectronics, 4e McGraw-Hill Chapter 11-14 DC Transfer Characteristics: Bipolar Differential Amplifier Neamen Microelectronics, 4e McGraw-Hill Chapter 11-16 4 12/3/2013 Neamen Microelectronics, 4e McGraw-Hill Chapter 11-17 Neamen Microelectronics, 4e McGraw-Hill Chapter 11-18 Small-Signal Equivalent Circuit: Bipolar Differential Amplifier Neamen Microelectronics, 4e McGraw-Hill Chapter 11-19 Neamen Microelectronics, 4e McGraw-Hill Chapter 11-20 5 12/3/2013 Small-Signal Equivalent Circuit: Neamen Microelectronics, 4e McGraw-Hill Chapter 11-21 Small-Signal Equivalent Circuit: Bipolar Differential Amplifier Neamen Microelectronics, 4e McGraw-Hill Chapter 11-23 Neamen Microelectronics, 4e McGraw-Hill Chapter 11-22 Equivalent AC Circuit: Diff. Amp. Differential-mode input Neamen Microelectronics, 4e McGraw-Hill Chapter 11-24 6 12/3/2013 Equivalent AC Circuit: Diff. Amp. MOSFET Differential Pair Common-mode input Neamen Microelectronics, 4e McGraw-Hill Chapter 11-25 DC Transfer Characteristics: MOSFET Differential Amplifier Neamen Microelectronics, 4e McGraw-Hill Chapter 11-27 Neamen Microelectronics, 4e McGraw-Hill Chapter 11-26 Small-Signal Equivalent Circuit: MOSFET Differential Amplifier Neamen Microelectronics, 4e McGraw-Hill Chapter 11-28 7 12/3/2013 Small-Signal Equivalent Circuit: MOSFET Differential Amplifier Neamen Microelectronics, 4e McGraw-Hill Chapter 11-29 Small-Signal Equivalent Circuit: BJT Diff-Amplifier with Active Load Neamen Microelectronics, 4e McGraw-Hill Chapter 11-31 BJT Diff-Amplifier with 3-Transistor Active Load Neamen Microelectronics, 4e McGraw-Hill Chapter 11-30 Small-Signal Equivalent Circuit: BJT Diff-Amplifier with Active Load Neamen Microelectronics, 4e McGraw-Hill Chapter 11-32 8 12/3/2013 AC Equivalent Circuit: MOSFET Diff-Amp with Active Load Small-Signal Equivalent Circuit: MOSFET Diff-Amplifier with Active Load ܣௗ = Neamen Microelectronics, 4e McGraw-Hill Chapter 11-33 Neamen Darlington Pair ݒ = ݃ (ݎଶ ||ݎସ ) ݒௗ Microelectronics, 4e McGraw-Hill Chapter 11-34 BiMOS Diff-Amp • BJT’s have higher gains • MOS have low (zero) bias currents Neamen Microelectronics, 4e McGraw-Hill Chapter 11-35 Neamen Microelectronics, 4e McGraw-Hill Chapter 11-36 9 12/3/2013 3-Transistor Active Load Darlington Pair Gain Stage BJT Diff-Amp BJT Op-Amp EmitterFollower Output Stage Neamen Microelectronics, 4e McGraw-Hill Chapter 11-37 Neamen Microelectronics, 4e McGraw-Hill Chapter 11-38 10
