##### SD292 Glossary
1 / 44
Term:
Definition:
Show example sentence
Show hint
Keyboard Shortcuts
• Previous
• Next
• F Flip card

#### Complete list of Terms and Definitions for SD292 Glossary

Terms Definitions
Full-Power Bandwidth highest frequency that a full scale frequency an be developed, an op amp can work at; consequence of having a non-infinite slew rate; op amp with too high frequency wont have negative feeback occur fast enough and will breakdown at freqs higher than that; full power is highest frequency that the opamp can still do negative feedback
Offset Binary Coding resistor and voltage attached to D/A converter causing it to drop the voltage range down by one significant bit 0000 ---> 1000
Generalized First Order Low Pass Filter a circuit that attenuates frequencies above a cut off frequency defined as being 1/2Pi RC --> write formula; passive has no gain, but has a gain of G; rolls off at -20dB per decade
Passive Circuit Component does not produce its own power; draws or stores energy, doesnt contribute
Integral Linearity Error error is how far it strays from a perfectly straight line in a A/D Converter, maximum deviation from ideal case
Quantization Error is Q in a A/D converter; how far voltage gets away from the binary word that is approximating it; due to not enough bits; insufficient resolution of D/A converter; value is least significant bit ... +/- least significant bit
Phasors representation of elements with sinusoidally varying points on a graph; vectors can be described on the basis of a plane
Differential Input Impedance in an IA - input impedance where the differential signal (difference between the two input signals) sees when entering it, which is lower than the common mode impedance
Monostable one shot, uses positive feedback to maintain one stable state, until perturbed and changes states for temporary amount of time
Virtual Ground voltage at negative input of op amp = to positive input when there is negative feedback, and the positive input is grounded; that point is zero without the terminal actually being grounded; effect of grounding one of the terminals
Thevenin Equivalent Circuit network of components can be reduced down to one voltage source to one resistor --> impedances, can be capacitors and inductors <-- in series
Independent Voltage Source a voltage source that is removed from the load, so it will have no loading effect, independing of circuit elements;maintains constant voltage/current across its terminals
Equivalent Power Sources to convert between voltage and current sources
Equivalent Voltage Source a Thevinin Equivalent , network of sources that can be represented as one voltage source; outside sources looking in can't tell the difference
Quality Factor causes maximally flat response with 0.707; 1 - overdamped, critically damped, 0.5 - underdamped
Astable Circuit circuit created by positive feedback loop with no stable state; creates an output square wave
Superposition concept of removing certain sources from circuit and combining
Passband Ripple effect caused in real filters and amplifiers of the passband not being a single gain but having a fluctuating gain as you go through the passband; can draw bode plot with ripple in max gain
Offset Voltage voltage of diff amp when both inputs are grounded; voltage leakage caused by dc sources in op amps causing error in voltage output in op amp. can be found by grounding inputs and calculating output voltage
Maximally Flat Response quality Factor is Q = 0.707, smallest amount of offshoot going up the magnitude/frequency plot; Butterworth filter exhibits this characteristic
Kirchoff's Current Law sum of currents entering a node = sum of currents leaving; nodal analysis
Hold Mode Droop error caused by capacitor leakage when sample/hold is turned on/off
Roll-Off rate of decay of gain past the cut off frequency; for a first order filter = -20dB; second order = -40 dB; Ultimate RollOff = one decade above frequency high = below
Frequency Response the magnitude and phase graph of a instrument (filter/opamp) of a circuit as it varies across different frequencies; i.e. Bode plot
Seebeck Effect change in voltage created by material property change by two dissimalr metals caused by temperature change
Passive Transducer a transducer that modifies a signal but does not provide its own; only takes or draws power, but does not generate it
Instrumentation Amplifier Differential amp with really high input impedance and CMRR; two amps act as buffers, one acts as differential amp
Principle of Transduction convert a change in physical properties to electrical energy
Integral Linearity Error when theres a hump in the graph
Current Divider in parallel, method of determining current across a series of parallel resistors