Mechatronics Adc Dac
Mechatronics Adc Dac
Mechatronics Adc Dac
Converters
PRASANTH.N
M.TECH CIM
RA1412004010010
Analog Signals
Analog signals It is a directly measurable
quantities in terms of some other quantity.
Examples:
Thermometer
Car
Stereo
Digital Signals
Digital Signals: They have only two states. For
digital computers, we refer to binary states, 0
and 1. 1 can be on, 0 can be off.
Examples:
Light switch can be either on or off
Door to a room is either open or closed
A/D Applications
A/D CIRCUIT
Flash ADC
Delta-Sigma ADC
Flash ADC
The
Flash
Advantages
Simplest in terms of
operational theory
Disadvantages
Lower resolution
Expensive
For each additional
output bit, the number
of comparators is
doubled.
DIGITAL TO ANALOG
CONVERTER
RESOLUTION
RESOLUTION
==NNBITS
BITS
Binary weighted
resistor
R-2R ladder
Multiplier DAC
Non-multiplier DAC
WEIGHTED RESISTOR
COMPONENTS
Operational amplifier
Switches
Resistors
Voltage source
Ground
CIRCUIT
Advantages
Simple Construction/Analysis
Fast Conversion
Disadvantages
APPLICATIONS
Digital
Motor Control
Computer Printers
Sound Equipment (e.g. CD/MP3
Players, etc.)
Function Generators/Oscilloscopes
Digital Audio