What is slope in ADC?

What is slope in ADC?

The is the basic idea behind the so-called single-slope, or integrating ADC. Instead of using a DAC with a ramped output, we use an op-amp circuit called an integrator to generate a sawtooth waveform which is then compared against the analog input by a comparator.

What is meant by resolution of DAC?

Resolution. The resolution of a DAC is given by the number of bits, N. The resolution is the smallest increment of output that the DAC can produce. An 8-bit, DAC has a resolution of 8 bits, or one part in 28. This results in a percentage of 0.39\%.

What is ADC explain the construction and working principle of dual slope type ADC?

The dual slope ADC mainly consists of 5 blocks: Integrator, Comparator, Clock signal generator, Control logic and Counter. This input voltage is applied to an integrator. The output of the integrator is connected to one of the two inputs of the comparator and the other input of comparator is connected to ground.

What is single slope ADC?

The simplest form of an integrating ADC uses a single-slope architecture (Figures 1a and 1b). Here, an unknown input voltage is integrated and the value compared against a known reference value. The time it takes for the integrator to trip the comparator is proportional to the unknown voltage (TINT/VIN).

What determines the slope of AD curve?

The aggregate demand curve represents the total of consumption, investment, government purchases, and net exports at each price level in any period. It slopes downward because of the wealth effect on consumption, the interest rate effect on investment, and the international trade effect on net exports.

What is DAC explain about DAC?

A Digital to Analog Converter (DAC) converts a digital input signal into an analog output signal. The digital signal is represented with a binary code, which is a combination of bits 0 and 1. A Digital to Analog Converter (DAC) consists of a number of binary inputs and a single output.

How does a dual-slope ADC work?

How does it work A dual-slope ADC (DS-ADC) integrates an unknown input voltage (V IN) for a fixed amount of time (T INT), then “de-integrates” (T DEINT) using a known reference voltage (V REF) for a variable amount of time. The key advantage of this architecture over the single-slope is that the final

What are the disadvantages of a single slope digital ramp ADC?

The single-slope ADC suffers all the disadvantages of the digital ramp ADC, with the added drawback of calibration drift. The accurate correspondence of this ADC\\’s output with its input is dependent on the voltage slope of the integrator being matched to the counting rate of the counter (the clock frequency).

What is the resolution of an ADC with an input voltage?

Meaning 1024 is the resolution for a 10-bit ADC, similarly for a 8-bit ADC resolution will be 512 (2 8) and for a 16-bit ADC resolution will be 65,536 (2 16 ). With this if the actual input voltage is 0V then the MCU’s ADC will read it as 0 and if it is 5V the MCU will read 1024 and if it somewhere in between like 2.5V then the MCU will read 512.

What is ADC in Computer Science?

What is ADC. An electronic integrated circuit which transforms a signal from analog (continuous) to digital (discrete) form. Analog signals are directly measurable quantities. Digital signals only have two states. For digital computer, we refer to binary states, 0 and 1.