2-Op-Amp_Concepts

2-Op-Amp_Concepts - Operational Amplifiers: Basic Concepts...

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Operational Amplifiers: Basic Concepts Prof. Greg Kovacs Department of Electrical Engineering Stanford University
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EE122, Stanford University, Prof. Greg Kovacs 2 Design Note: The Design Process Definition of function - what you want. Block diagram - translate into circuit functions. First Design Review. Circuit design - the details of how functions are accomplished. Component selection Schematic Simulation Prototyping of critical sections Second Design Review. Fabrication and Testing.
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EE122, Stanford University, Prof. Greg Kovacs 3 EE122 Parts Kit
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EE122, Stanford University, Prof. Greg Kovacs 4 Parts Kit Guide Sockets LT1056 Op- Amps LM334 Temp. Sensor SFH300-3B Phototransistor CdS Cell Bright Red LEDs Yellow LEDs LT1167 Instrum. Amp LT1175 Adjustable Negative Voltage Regulator AD654 V-F Converter LT1011 Comparator 555 Timer LTC1064-2 Switched Capacitor Filter 7805 +5V Regulator MJE3055 NPN Power Transistor IRLZ34 Logic-Level Power MOSFET (N-Chan) LT1036 Voltage Regulator +12/+5 LT1033 Voltage Regulator 3A Negative, Adjustable
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EE122, Stanford University, Prof. Greg Kovacs 5 Protoboards. .. Each set of five pins are shorted together internally so you can make multiple connections to one i.c. pin or component lead. .. Each of the long rows of pins is shorted together so you can use them as power supply and ground lines. ..
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EE122, Stanford University, Prof. Greg Kovacs 6 USE decoupling capacitors (typically 0.1 μF) from each power supply rail to ground. This is essential to prevent unwanted oscillations. The capacitors locally source and sink currents from the supply rails of the chips, preventing them from “talking” to each other and their own inputs!
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EE122, Stanford University, Prof. Greg Kovacs 7 Point-To-Point Soldering On A Ground-Planed Board
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EE122, Stanford University, Prof. Greg Kovacs 8 What Is an Op-Amp Anyway? OBJECTIVES (Why am I sitting in this classroom?) • To obtain a practical understanding of what operational amplifiers (“op-amps”) are and some applications they can be used for. • To understand the basic op-amp circuit configurations. • To understand the basic characteristics (good and bad) of op-amps before measuring some of them in the lab. • To keep your parents happy! We don't need no education. ...
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EE122, Stanford University, Prof. Greg Kovacs 9 The Ideal Op-Amp + - V2 V1 A(V2-V1) 1) The input impedance is infinite - i.e. no current ever flows into either input of the op-amp. 2) The output impedance is zero - i.e. the op-amp can drive any load impedance to any voltage. 3) The open-loop gain (A) is infinte. 4) The bandwidth is infinite. 5) The output voltage is zero when the input voltage difference is zero. The Op-Amp produces an output voltage that is the difference between the two input terminals, multiplied by the gain A. ..
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EE122, Stanford University, Prof. Greg Kovacs 10 Types of Op-Amps Traditional costumes of analog circuit designers.
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2-Op-Amp_Concepts - Operational Amplifiers: Basic Concepts...

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