EE215_Lab_3 - EE215: Fundamentals of Electrical Engineering...

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EE215: Fundamentals of Electrical Engineering Laboratory 3 Page 1 EE 215 - Laboratory 3 - Operational Amplifiers (Op Amps) Authors C. Ramon, R.D. Christie, K.F. Böhringer Objectives At the end of this lab, you will be able to: Construct and test inverting and non-inverting op amp circuits Compute the input and output resistance of op amp circuits from measurements. Design simple op amp circuits Materials and Supplies See Laboratory 1 for information on obtaining a laboratory parts kit and multimeter, and for identifying many of the parts used in Laboratory 3. Parts for This Lab 1234 5 6 7 8 Figure 1 - LM741 pin out (top view) The new part used in this lab is the LM741 Op Amp . It is the small 8-legged black plastic bug-like thing. This component form, or package, is called an 8-pin Dual Inline Package, or DIP. DIPs of different sizes (pin counts) are used for many types of integrated circuits. The op amp for this lab may be marked LM741 or HA17741, and may be from National, Hitachi, or another manufacturer. The number 741 indicates the basic functionality of the part, e.g. op amp, inverter, or AND gate. 741 is a general purpose operational amplifier. Letters and numbers preceding 741 indicate the type of process used to make the component, e.g. CMOS or TTL. Letters following 741 usually indicate the package type, e.g. plastic, ceramic, DIP or surface mount. The op amp may be marked with a dot in one corner of the top, or a notch in one end, or both. Pin 1 is at the corner with the dot. Pin 1 is the pin in the corner to the left of the notch, looking down. Pin numbering runs counter- clockwise from pin 1. Looking down on the op amp, with pin 1 in the upper left corner, pin 4 is in the lower left corner, pin 5 in the lower right corner, and pin 8 in the upper right corner. See the pinout in Figure 1. Note that the op amp symbol is NOT printed on the package. Data sheets can be found at and other IC manufacturer sites. Use the part number, LM741, to search.
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This note was uploaded on 10/30/2011 for the course EE 215 taught by Professor Unknown during the Spring '05 term at University of Washington.

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EE215_Lab_3 - EE215: Fundamentals of Electrical Engineering...

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