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TRIPPINGS HALOHALO Flashcards | StudBud
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TRIPPINGS HALOHALO
TRIPPINGS HALOHALO
33 terms
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1
is the ratio of input voltage to input current and is assumed to be infinite to prevent any current flowing
Input resistance
Input flow ratio
Input impedance
Input ratio
2
Inverting input
+
-
3
the main function of operational amplifier is to amplify the input signal and the more ____ it has the better
Open Loop Gain, (Avo)
Input impedance, (ZIN)
Output impedance, (ZOUT)
Offset Voltage, (VIO)
4
An ideal operational amplifier has infinite frequency response and can amplify any frequency from DC to the highest AC
Offset Voltage, (VIO)
Bandwidth, (BW)
Input impedance, (ZIN)
Output impedance, (ZOUT)
5
Pin 1 and Pin 5
offset null
output
inverting input
non-inverting input
6
Type of Amplifier
Non inverting
Inverting
7
formula for Gain (A)
Vout / Vin
Vout*Vin
Vin / Vout
8
formula for voltage output (Vo) when the signal entered at two inputs
A/Vd
A*Vd
Vd/A
9
Type of Amplifier
Inverting
Non inverting
10
Ideal op-amp characteristics
Zero input resistance
Zero output resistance
Infinite open loop gain
Infinite input resistance
11
Non-inverting input
+
-
12
Is an analog circuit block that takes a differential voltage input and produces a single-ended voltage output.
BJT
OP-AMP
MOSFET
JFET
13
Op-amp 741 open-loop gain
107
105
104
10-5
14
Op amps usually have three terminals:
two low-impendance inputs and a high impendance output
two high-impendance inputs and a low-impendance output
two high-impendance outputs and a low-impendance input
two low-impendance outputs and a high-impendance input
15
Pin 7
output
inverting input
non-inverting input
positive voltage
16
formula for voltage output (Vo) when the signal entered at inverting input
Vin / A
-A*Vin
Vin / A
17
Pin 6
positive voltage
negative voltage
non-inverting input
output
18
Pin 8
negative voltage
positive voltage
pin not used
offset null
19
Real op-amps have input ___________ from a few pico-amps to a few mili-amps
leakage current
leakage voltage
leakage supply
leakage source
20
Pin 4
offset null
inverting input
pin not used
negative voltage
21
Op Amps used for
filtering
perform mathematical operations
signal conditioning
signal switching
22
Pin 2
negative voltage
inverting input
non-inverting input
positive voltage
23
Op-amp 741 output impedance
75 Ω
65 Ω
85 Ω
95 Ω
24
Pin 3
inverting input
negative voltage
positive voltage
non-inverting input
25
is another basic op-amp circuit. It uses positive feedback to stabilize the overall voltage gain.
NON-INVERTING AMPLIFIER
INVERTING AMPLIFIER
26
formula for voltage output (Vo) when the signal entered at non-inverting input
Vin / A
A/ Vin
A*Vin
27
is the most basic op-amp circuit. It uses negative feedback to stabilize the overall voltage gain.
INVERTING AMPLIFIER
NON-INVERTING AMPLIFIER
28
for such an amplifier, the gain will be infinite but typical real values range from about
30,000 to 300,000
20,000 to 200,000
10,000 t0 100,000
40,000 to 400,000
29
Operational amplifiers are
linear devices
non-linear devices
electronic devices
current control devices
30
Gain of the op-amp without positive or negative feedback
Closed-loop gain
Op-amp gain
Open-loop gain
Infinite-loop gain
31
Op-amp 741 input impedance
2 MΩ
6 MΩ
8 MΩ
4 MΩ
32
Op-amp 741 offset voltage
2 mV
1 mV
3 mV
4 mV
33
The ____ of the ideal operational amplifier is assumed as zero acting perfect internal voltage source with no internal R
Output impedance, (ZOUT)
Open Loop Gain, (Avo)
Offset Voltage, (VIO)
Input impedance, (ZIN)
