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Cards in this deck (22)
- 1What is open gain loopthe gain of a OP amp without Feedback,
Adb = 20log(Vo/Vi)
note Vo/Vi is also just A with no db - 2what is a Signal ConditioningSignal Conditioning is the process of amplifying and offsetting a signal from one (input) range to another (output) range
- 3what is a SCC and its transfer functiona SCC is a circuit dedicated to Signal Conditioning, its transfer function is
Vo = AVi + Voffset
were A is the Gain
Voffset is Voltage added to output
note A = Output Span/Input Span - 4neat fact about SCC'sthere are always two wires(signals) on them one positive and one negative
- 5what is Differential Voltageits the difference between the two wires(signals) on a SCC
Vd = V(+) - V(-) - 6what is Common mode votlageA Voltage that is common among both wires(signals) and is normally referred to as noise
Vcm = 0.5 * Vd - 7What is the Transfer FunctionThe GOLDEN GOD!!!!!!!!!!!!!!!
- 8What is Common Mode Rejection and the real SCC transfer FunctionIdeally a SCC Vout would be
Vo = Ad * Vd
but in reality its transfer function is this
Vo = Ad* Vd + Acm * Vcm
where Acm is a common mode gain
Ad = Vdo/Vdi, Acm = Vcmo/Vcmi - 9CMRR vs CMRCMR is in DB CMRR is the big bio ratio
CMR = 10^(CMR/20) - 10Whats Non Inverting AMPPositive is hooked up to Source
negative is grounded
G = (Rf/Ri)+1
Vo = G*Vi - 11What is a Inverting AmpNegative is Hooked Up Source
Positive is Grounded
G = (-Rf/Ri)
Vo = G*vi - 12Amps are Used forCreating a Stable Offset Voltage....
- 13If two amps are together what do there gains doMultiply up........ (Vout1*Gain1)*Gain2
- 14Summing Amplifiers... how do you use themwelp you hook up stuff duuuuf if there are multiple inputs they go as so....
(Inverting) Vo = (-Rf/R1)(V1) + (-Rf/R2)(V2).....
(non) Vo = (1+Rf/R1)(V1) + (1+Rf/R2)(V2)..... - 15Super Postion.. and Amplifiersessentially for this we pretend like there are two circuits when there really isn't... and then we add each circuit together ain't that SUPER-POSITONAL...
- 16YOU GOTTA FUCKING KNOW.......?OHM'S mother fucking LAW
all the electricity is fucking portional bitch
when its through a
conductor(eLEcTrICeY MEtAtly tHiNgS)
I = V/R
ILLUMINATEEEEE - 17Filters are JustAmplifiers with Capacitors
a lowpass is a inverting Amp
a High pass is a Non Inv Amp
FC = 1/(2Pi * R * C)
Note DC dose not have frequency so its just max Gain - 18REVIEW FILTERS BITCHyeeeeeeeeeeeeee
- 19REF01 REF05is gonna output 10 volts
is gonna output 5 volts
REMEMBER OHMS FUCKING LAW - 201NA114 has a special GOLDEN GOD(Transfer fucntion)1+(50kohms)/RG = Gain
- 21special nono things about INA114Resistor between pin 1 and 8 is a resistance that is the GAIN RESISTOR
(golden god) - 22there's another special boi called the AMP01its formula is............................
2Rs/Rg = Gain
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- Information Technology Flashcards on HardWAre, created by Unicorn Bob on 30/09/2020.
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- Unicorn Bob
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