An 8 bit D/A (Digital to Analog) converter has an output voltage range of 0-10 volts. a. Find the resolution in millivolts/bit b. If the digital input is: 11 10 0 1 1 1 (2), what is the output voltage? a) Resolution = Vref/2" (n = # of bits) -> Since n = 8, Range = Vmax - Vmin → 10 - 0 → Vrange = 10V → Verf = 10V 8 Resolution = 10V / 2³ = 0.03906V/bit Resolution = 39.06mV/bit b) Vout = (Decimal Value of Digital input) * Resolution 11100111 → 231 (10) Vout = 231 * 39.06mV/bit→ Vout = 9.02V
An 8 bit D/A (Digital to Analog) converter has an output voltage range of 0-10 volts. a. Find the resolution in millivolts/bit b. If the digital input is: 11 10 0 1 1 1 (2), what is the output voltage? a) Resolution = Vref/2" (n = # of bits) -> Since n = 8, Range = Vmax - Vmin → 10 - 0 → Vrange = 10V → Verf = 10V 8 Resolution = 10V / 2³ = 0.03906V/bit Resolution = 39.06mV/bit b) Vout = (Decimal Value of Digital input) * Resolution 11100111 → 231 (10) Vout = 231 * 39.06mV/bit→ Vout = 9.02V
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Transcribed Image Text:An 8 bit D/A (Digital to Analog) converter has an output voltage range of 0-10 volts.
a. Find the resolution in millivolts/bit
b. If the digital input is: 11 10 0 1 1 1 (2), what is the output voltage?
a) Resolution = Vref/2" (n = # of bits)
->
Since n = 8, Range = Vmax - Vmin → 10 - 0 → Vrange = 10V → Verf = 10V
8
Resolution = 10V / 2³ = 0.03906V/bit
Resolution = 39.06mV/bit
b) Vout = (Decimal Value of Digital input) * Resolution
11100111 → 231 (10)
Vout = 231 * 39.06mV/bit→ Vout = 9.02V
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