Simple OP-AMP circuits
Application hint: Use precision resistors. If the two R2 resistors differ by 1% you're difference will be off by 1%. Same goes for the R1 resistors. Assume V1 = V2. If the resistors aren't matched the output won't be zero. Actually, it's better to buy a difference amplifier or an instrumentation amplifier instead of building the difference amp
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power supply info 2 - UNLV Physics & Astronomy
www.physics.unlv.eduhotter it gets the sooner the part will fail. You could also burn yourself if you touch the regulator (the case temp would be 25°C + 65°C/W * 1.2W = 103°C (217°F).
How to read an op-amp data sheet - UNLV Physics …
www.physics.unlv.eduHow to read an op-amp data sheet: We'll use the LM741: http://media.digikey.com/pdf/Data%20Sheets/Fairchild%20PDFs/LM741.pdf datasheet to explain the various specifications
Relay Basics - Astronomy
www.physics.unlv.eduRelay Basics: A relay is an electrical switch that uses an electromagnet to move the switch from the off to on position instead of a person moving the switch.
OP-AMP Filter Examples - Astronomy
www.physics.unlv.eduOP-AMP Filter Examples: The two examples below show how adding a capacitor can change a non-inverting amplifiers frequency response. If the capacitor is removed you're left with a standard non-inverting amplifier with a gain of 10
OP-AMP Filter Examples - UNLV Physics & Astronomy
www.physics.unlv.eduresponse. If the capacitor is removed you're left with a standard non-inverting amplifier with a gain of 10 (1 + R2/R1). Recall that the capacitors impedance depends on frequency (Xc = 1/(2πfC)) and the corner frequency of an RC filter is fc = 1/(2πRC). In first circuit the capacitor is placed in parallel with the feedback resistor (R2).
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