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2. Analog-to-digital converter - Wikipedia

   en.wikipedia.org/wiki/Analog-to-digital_converter

   Analog-to-digital converter. In electronics, an analog-to-digital converter ( ADC, A/D, or A-to-D) is a system that converts an analog signal, such as a sound picked up by a microphone or light entering a digital camera, into a digital signal.

3. Integrating ADC - Wikipedia

   en.wikipedia.org/wiki/Integrating_ADC

   Integrating ADC. An integrating ADC is a type of analog-to-digital converter that converts an unknown input voltage into a digital representation through the use of an integrator. In its basic implementation, the dual-slope converter, the unknown input voltage is applied to the input of the integrator and allowed to ramp for a fixed time period ...

4. Successive-approximation ADC - Wikipedia

   en.wikipedia.org/wiki/Successive-approximation_ADC

   A DAC to convert the ith approximation xi to a voltage. A comparator to perform the function s(xi − x) by comparing the DAC's voltage with the input voltage. A register to store the output of the comparator and apply xi−1 − s(xi−1 − x)/2i. Operation of successive-approximation ADC as input voltage falls from 5 to 0 V. Iterations on ...

5. Digital down converter - Wikipedia

   en.wikipedia.org/wiki/Digital_down_converter

   In digital signal processing, a digital down-converter ( DDC) converts a digitized, band-limited signal to a lower frequency signal at a lower sampling rate in order to simplify the subsequent radio stages. The process can preserve all the information in the frequency band of interest of the original signal. The input and output signals can be ...

6. Delta-sigma modulation - Wikipedia

   en.wikipedia.org/wiki/Delta-sigma_modulation

   Delta-sigma ( ΔΣ; or sigma-delta, ΣΔ) modulation is an oversampling method for encoding signals into low bit depth digital signals at a very high sample-frequency as part of the process of delta-sigma analog-to-digital converters (ADCs) and digital-to-analog converters (DACs). Delta-sigma modulation achieves high quality by utilizing a ...

7. Mixed-signal integrated circuit - Wikipedia

   en.wikipedia.org/wiki/Mixed-signal_integrated...

   Mixed-signal ICs process both analog and digital signals together. For example, an analog-to-digital converter (ADC) is a typical mixed-signal circuit. Mixed-signal ICs are often used to convert analog signals to digital signals so that digital devices can process them.