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Digital to Analog Converter

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Page 1: Digital to Analog Converter - Penn State Engineering: Penn ...kxc104/class/cse577/11s/lec/dac/dac.pdf · REF 3-TO-8 DECODER TO SWITCHES 3-BIT DIGITAL INPUT ANALOG OUTPUT CIRCA 1920

Digital to Analog Converter

Page 2: Digital to Analog Converter - Penn State Engineering: Penn ...kxc104/class/cse577/11s/lec/dac/dac.pdf · REF 3-TO-8 DECODER TO SWITCHES 3-BIT DIGITAL INPUT ANALOG OUTPUT CIRCA 1920

Pulse Width Modulation (PWM)

Duty cycle = t2 / t1

Page 3: Digital to Analog Converter - Penn State Engineering: Penn ...kxc104/class/cse577/11s/lec/dac/dac.pdf · REF 3-TO-8 DECODER TO SWITCHES 3-BIT DIGITAL INPUT ANALOG OUTPUT CIRCA 1920

Pulse Width Modulation (PWM)

Duty cycle = t2 / t1

Page 4: Digital to Analog Converter - Penn State Engineering: Penn ...kxc104/class/cse577/11s/lec/dac/dac.pdf · REF 3-TO-8 DECODER TO SWITCHES 3-BIT DIGITAL INPUT ANALOG OUTPUT CIRCA 1920

Pulse Width Modulation (PWM)

Page 5: Digital to Analog Converter - Penn State Engineering: Penn ...kxc104/class/cse577/11s/lec/dac/dac.pdf · REF 3-TO-8 DECODER TO SWITCHES 3-BIT DIGITAL INPUT ANALOG OUTPUT CIRCA 1920

Pulse Width Modulation (PWM)

Page 6: Digital to Analog Converter - Penn State Engineering: Penn ...kxc104/class/cse577/11s/lec/dac/dac.pdf · REF 3-TO-8 DECODER TO SWITCHES 3-BIT DIGITAL INPUT ANALOG OUTPUT CIRCA 1920

Resistor String DAC

Page 7: Digital to Analog Converter - Penn State Engineering: Penn ...kxc104/class/cse577/11s/lec/dac/dac.pdf · REF 3-TO-8 DECODER TO SWITCHES 3-BIT DIGITAL INPUT ANALOG OUTPUT CIRCA 1920

Resistor String DAC

Page 8: Digital to Analog Converter - Penn State Engineering: Penn ...kxc104/class/cse577/11s/lec/dac/dac.pdf · REF 3-TO-8 DECODER TO SWITCHES 3-BIT DIGITAL INPUT ANALOG OUTPUT CIRCA 1920

Resistor String DAC

Page 9: Digital to Analog Converter - Penn State Engineering: Penn ...kxc104/class/cse577/11s/lec/dac/dac.pdf · REF 3-TO-8 DECODER TO SWITCHES 3-BIT DIGITAL INPUT ANALOG OUTPUT CIRCA 1920

Resistor String DAC

Page 10: Digital to Analog Converter - Penn State Engineering: Penn ...kxc104/class/cse577/11s/lec/dac/dac.pdf · REF 3-TO-8 DECODER TO SWITCHES 3-BIT DIGITAL INPUT ANALOG OUTPUT CIRCA 1920

Resistor String DAC

Page 11: Digital to Analog Converter - Penn State Engineering: Penn ...kxc104/class/cse577/11s/lec/dac/dac.pdf · REF 3-TO-8 DECODER TO SWITCHES 3-BIT DIGITAL INPUT ANALOG OUTPUT CIRCA 1920

Resistor String DAC

Page 12: Digital to Analog Converter - Penn State Engineering: Penn ...kxc104/class/cse577/11s/lec/dac/dac.pdf · REF 3-TO-8 DECODER TO SWITCHES 3-BIT DIGITAL INPUT ANALOG OUTPUT CIRCA 1920

Inverting Op Amp

Page 13: Digital to Analog Converter - Penn State Engineering: Penn ...kxc104/class/cse577/11s/lec/dac/dac.pdf · REF 3-TO-8 DECODER TO SWITCHES 3-BIT DIGITAL INPUT ANALOG OUTPUT CIRCA 1920

Inverting Summer Circuit

Vout =

Page 14: Digital to Analog Converter - Penn State Engineering: Penn ...kxc104/class/cse577/11s/lec/dac/dac.pdf · REF 3-TO-8 DECODER TO SWITCHES 3-BIT DIGITAL INPUT ANALOG OUTPUT CIRCA 1920

Inverting Summer Circuit

Page 15: Digital to Analog Converter - Penn State Engineering: Penn ...kxc104/class/cse577/11s/lec/dac/dac.pdf · REF 3-TO-8 DECODER TO SWITCHES 3-BIT DIGITAL INPUT ANALOG OUTPUT CIRCA 1920

DAC with Weighted Sum

Page 16: Digital to Analog Converter - Penn State Engineering: Penn ...kxc104/class/cse577/11s/lec/dac/dac.pdf · REF 3-TO-8 DECODER TO SWITCHES 3-BIT DIGITAL INPUT ANALOG OUTPUT CIRCA 1920

Digital to Analog Converter

Page 17: Digital to Analog Converter - Penn State Engineering: Penn ...kxc104/class/cse577/11s/lec/dac/dac.pdf · REF 3-TO-8 DECODER TO SWITCHES 3-BIT DIGITAL INPUT ANALOG OUTPUT CIRCA 1920

Binary Weighted DAC

Page 18: Digital to Analog Converter - Penn State Engineering: Penn ...kxc104/class/cse577/11s/lec/dac/dac.pdf · REF 3-TO-8 DECODER TO SWITCHES 3-BIT DIGITAL INPUT ANALOG OUTPUT CIRCA 1920

Binary Weighted DAC

Page 19: Digital to Analog Converter - Penn State Engineering: Penn ...kxc104/class/cse577/11s/lec/dac/dac.pdf · REF 3-TO-8 DECODER TO SWITCHES 3-BIT DIGITAL INPUT ANALOG OUTPUT CIRCA 1920

Digital to Analog Converter

Page 20: Digital to Analog Converter - Penn State Engineering: Penn ...kxc104/class/cse577/11s/lec/dac/dac.pdf · REF 3-TO-8 DECODER TO SWITCHES 3-BIT DIGITAL INPUT ANALOG OUTPUT CIRCA 1920

Digital to Analog Converter

Page 21: Digital to Analog Converter - Penn State Engineering: Penn ...kxc104/class/cse577/11s/lec/dac/dac.pdf · REF 3-TO-8 DECODER TO SWITCHES 3-BIT DIGITAL INPUT ANALOG OUTPUT CIRCA 1920

Digital to Analog Converter

Page 22: Digital to Analog Converter - Penn State Engineering: Penn ...kxc104/class/cse577/11s/lec/dac/dac.pdf · REF 3-TO-8 DECODER TO SWITCHES 3-BIT DIGITAL INPUT ANALOG OUTPUT CIRCA 1920

DAC Implementation

Page 23: Digital to Analog Converter - Penn State Engineering: Penn ...kxc104/class/cse577/11s/lec/dac/dac.pdf · REF 3-TO-8 DECODER TO SWITCHES 3-BIT DIGITAL INPUT ANALOG OUTPUT CIRCA 1920

DAC Implementation

Page 24: Digital to Analog Converter - Penn State Engineering: Penn ...kxc104/class/cse577/11s/lec/dac/dac.pdf · REF 3-TO-8 DECODER TO SWITCHES 3-BIT DIGITAL INPUT ANALOG OUTPUT CIRCA 1920

Pipeline DAC

Page 25: Digital to Analog Converter - Penn State Engineering: Penn ...kxc104/class/cse577/11s/lec/dac/dac.pdf · REF 3-TO-8 DECODER TO SWITCHES 3-BIT DIGITAL INPUT ANALOG OUTPUT CIRCA 1920

Digital to Analog Converter

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