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2. The SAR ADC (shown as below) and Vref= 10 V, the clock frequency is 100 kHz Analog Vi Clock oscillator Successive-approximation register (SAR) DR (data ready, end-of convenion) STRT MSB LSB (start conversion) D7 D6 D5 D4 D3 D2 D1 D0 C7 Output register Digital cxutput (Octal D7-F) Vref = 10 V 8-Bit D/A converter (DAC) 1). What is the full scale input voltage of the ADC? 2). Compute the digital output with input voltage of 7.28 Volts? What is the conversion error? 3). If D7~D0 is: 11101011, what's the voltage value? 4). What's the ADC conversion time?

          2. The SAR ADC (shown as below) and Vref= 10 V, the clock frequency is 100 kHz
Analog Vi
Clock
oscillator
Successive-approximation
register (SAR)
DR (data ready,
end-of convenion)
STRT
MSB
LSB
(start conversion)
D7 D6 D5 D4 D3 D2 D1 D0
C7
Output
register
Digital
cxutput
(Octal
D7-F)
Vref = 10 V
8-Bit D/A
converter (DAC)
1). What is the full scale input voltage of the ADC?
2). Compute the digital output with input voltage of 7.28 Volts? What is the conversion error?
3). If D7~D0 is: 11101011, what's the voltage value?
4). What's the ADC conversion time?

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2. The SAR ADC (shown as below) and Vref= 10 V, the clock frequency is 100 kHz
Analog Vi
Clock
oscillator
Successive-approximation
register (SAR)
DR (data ready,
end-of convenion)
STRT
MSB
LSB
(start conversion)
D7 D6 D5 D4 D3 D2 D1 D0
C7
Output
register
Digital
cxutput
(Octal
D7-F)
Vref = 10 V
8-Bit D/A
converter (DAC)
1). What is the full scale input voltage of the ADC?
2). Compute the digital output with input voltage of 7.28 Volts? What is the conversion error?
3). If D7 D0 is: 11101011, what's the voltage value?
4). What's the ADC conversion time?

Added by Tracy C.

Physics for IIT-JEE 2012-2013: Electricity & Magnetism

B.M. Sharma 2012 Edition

Chapter 10

Instant Answer

Solved by Expert Supreeta N

Step 1

2) To compute the digital output with an input voltage of 7.28 Volts, we need to determine the binary code that represents this voltage. Since the ADC is 8-bit, it can represent a total of 2^8 = 256 different voltage levels. The full-scale input voltage of 10V is Show more…

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2. The SAR ADC (shown below and Vref = 10 V, the clock frequency is 100 kHz) Analog V Clock: oscillator Successive-approximation register (SAR MSB LSB DDDDDDDD DR (data telemetry, end-of-conversion) STRT (start conversion) Output register Digital (Octal DFF) V = 10V 8-Bit D/A converter (DAC) 1) What is the full-scale input voltage of the ADC? 2) Compute the digital output with an input voltage of 7.28 Volts? What is the conversion error? 3) If D~Do is: 11101011, what's the voltage value? 4) What's the ADC conversion time?

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