Introduction to Mixed Signals Flashcards
Generally refers to systems or devices that involve both analog and digital signals
Mixed signal
Refers to systems or devices that combine both analog and digital
components
Mixed Signal
Are continuous signals that
can take on any value within a range.
Are typically
represented by continuously varying
voltages or currents
Analog signals
Are discrete signals with only two possible states: high (1) or low (0)
Digital signals,
Digital signals are used in digital electronics and computing, where information is represented in _______
Binary form
Examples of Mixed Signals
- ADC (Analog-to-Digital Converter)
- DAC (Digital-to-Analog Converter)
- Mixed Signal Integrated Circuits (ICs)
- Sensor Interfaces
- Communication Interfaces
Is a type of semiconductor device
that combines both analog and digital circuitry on the same chip.
Mixed-Signal Integrated Circuit
What does ASIC mean?
Application-Specific Integrated Circuit
What are the 3 Features of Mixed-Signal Integrated Circuit (IC)
- Analog Circuitry
- Digital Circuitry
- Integration
Contains components such as amplifiers, filters, and voltage
regulators that handle continuous signals
Analog Circuitry
Includes components like processors, memory, and digital
interfaces that work with discrete digital signals
Digital Circuitry
By integrating both analog and digital functions on a single chip,
these ICs can simplify system design, reduce component count, and improve
performance
Integration
What are the 2 Types of ADC
- Direct Type ADC
- Indirect Type ADC
A type of ADC that directly performs the analog to digital conversion by using the internal generated equivalent digital (binary) code for comparison with the analog input
Direct Type ADC
A type of ADC that first converts the analog input into a linear function of time (frequency) and then it will produce the digital (binary) output
Indirect Type ADC
3 types of Direct Type ADC
- Counter Type ADC
- Successive Approximation ADC
- Flash Type ADC
Only type under Indirect Type ADC
Dual Slope ADC
Generates a digital output that is
roughly equivalent to the analog input by using internal counter operation
Counter Type ADC
Generates a digital output that is roughly equivalent to the analog input by the internal use of successive approximation
technique
Successive Approximation ADC
Is the fastest ADC because it produces an equivalent
digital output for a corresponding analog input in on time
Flash Type ADC
Generates an equivalent digital output for a corresponding
analog input using two (dual) slope techniques
Dual Slope ADC
What does DAC mean?
Digital to Analog Conversion
What are the 2 types of DAC?
- Weighted Resistor DAC
- R-2R Ladder DAC
Provides an analog output that is nearly equal to the digital (binary) input by the use of binary-weighted resistors in the inverting adder circuit
Weighted Resistor DAC
