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- Analog-to-digital_converter abstract "An analog-to-digital converter (ADC, A/D, or A to D) is a device that converts a continuous physical quantity (usually voltage) to a digital number that represents the quantity's amplitude.The conversion involves quantization of the input, so it necessarily introduces a small amount of error. Furthermore, instead of continuously performing the conversion, an ADC does the conversion periodically, sampling the input. The result is a sequence of digital values that have been converted from a continuous-time and continuous-amplitude analog signal to a discrete-time and discrete-amplitude digital signal.An ADC is defined by its bandwidth (the range of frequencies it can measure) and its signal to noise ratio (how accurately it can measure a signal relative to the noise it introduces). The actual bandwidth of an ADC is characterized primarily by its sampling rate, and to a lesser extent by how it handles errors such as aliasing. The dynamic range of an ADC is influenced by many factors, including the resolution (the number of output levels it can quantize a signal to), linearity and accuracy (how well the quantization levels match the true analog signal) and jitter (small timing errors that introduce additional noise). The dynamic range of an ADC is often summarized in terms of its effective number of bits (ENOB), the number of bits of each measure it returns that are on average not noise. An ideal ADC has an ENOB equal to its resolution. ADCs are chosen to match the bandwidth and required signal to noise ratio of the signal to be quantized. If an ADC operates at a sampling rate greater than twice the bandwidth of the signal, then perfect reconstruction is possible given an ideal ADC and neglecting quantization error. The presence of quantization error limits the dynamic range of even an ideal ADC, however, if the dynamic range of the ADC exceeds that of the input signal, its effects may be neglected resulting in an essentially perfect digital representation of the input signal.An ADC may also provide an isolated measurement such as an electronic device that converts an input analog voltage or current to a digital number proportional to the magnitude of the voltage or current. However, some non-electronic or only partially electronic devices, such as rotary encoders, can also be considered ADCs. The digital output may use different coding schemes. Typically the digital output will be a two's complement binary number that is proportional to the input, but there are other possibilities. An encoder, for example, might output a Gray code.The inverse operation is performed by a digital-to-analog converter (DAC).".
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- Analog-to-digital_converter wikiPageExternalLink Understanding-analog-to-digital-converter-specifications.
- Analog-to-digital_converter wikiPageExternalLink tut_adc.php.
- Analog-to-digital_converter wikiPageExternalLink TIADC.html.
- Analog-to-digital_converter wikiPageExternalLink architecture.html.
- Analog-to-digital_converter wikiPageExternalLink data_conversion_handbook.html.
- Analog-to-digital_converter wikiPageExternalLink DeltaSigma.html.
- Analog-to-digital_converter wikiPageExternalLink adc_evaluation_rf_expo_east_1987.pdf.
- Analog-to-digital_converter wikiPageExternalLink ELK-11.
- Analog-to-digital_converter wikiPageExternalLink ?p=analog.digital.converter.
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- Analog-to-digital_converter wikiPageWikiLink 16-bit.
- Analog-to-digital_converter wikiPageWikiLink Aliasing.
- Analog-to-digital_converter wikiPageWikiLink Amplifier.
- Analog-to-digital_converter wikiPageWikiLink Analog-to-digital_converter.
- Analog-to-digital_converter wikiPageWikiLink Analog_signal.
- Analog-to-digital_converter wikiPageWikiLink Anti-aliasing_filter.
- Analog-to-digital_converter wikiPageWikiLink Audio_codec.
- Analog-to-digital_converter wikiPageWikiLink Beta_encoder.
- Analog-to-digital_converter wikiPageWikiLink Binary_number.
- Analog-to-digital_converter wikiPageWikiLink Bit.
- Analog-to-digital_converter wikiPageWikiLink Calibration.
- Analog-to-digital_converter wikiPageWikiLink Candela.
- Analog-to-digital_converter wikiPageWikiLink Capacitance.
- Analog-to-digital_converter wikiPageWikiLink Capacitor.
- Analog-to-digital_converter wikiPageWikiLink Category:Digital_signal_processing.
- Analog-to-digital_converter wikiPageWikiLink Category:Electronic_circuits.
- Analog-to-digital_converter wikiPageWikiLink Colour_banding.
- Analog-to-digital_converter wikiPageWikiLink Compact_disc.
- Analog-to-digital_converter wikiPageWikiLink Comparator.
- Analog-to-digital_converter wikiPageWikiLink Continuous_function.
- Analog-to-digital_converter wikiPageWikiLink Counter_(digital).
- Analog-to-digital_converter wikiPageWikiLink Delta-sigma_modulation.
- Analog-to-digital_converter wikiPageWikiLink Denys_Wilkinson.
- Analog-to-digital_converter wikiPageWikiLink Die_(integrated_circuit).
- Analog-to-digital_converter wikiPageWikiLink Differential_nonlinearity.
- Analog-to-digital_converter wikiPageWikiLink Differential_signaling.
- Analog-to-digital_converter wikiPageWikiLink Digital-to-analog_converter.
- Analog-to-digital_converter wikiPageWikiLink Digital_filter.
- Analog-to-digital_converter wikiPageWikiLink Digital_imaging.
- Analog-to-digital_converter wikiPageWikiLink Digital_signal_(signal_processing).
- Analog-to-digital_converter wikiPageWikiLink Digital_signal_processing.
- Analog-to-digital_converter wikiPageWikiLink Digital_signal_processor.
- Analog-to-digital_converter wikiPageWikiLink Digital_storage_oscilloscope.
- Analog-to-digital_converter wikiPageWikiLink Digitizing.
- Analog-to-digital_converter wikiPageWikiLink Direct_Stream_Digital.
- Analog-to-digital_converter wikiPageWikiLink Discrete_time_and_continuous_time.
- Analog-to-digital_converter wikiPageWikiLink Dither.
- Analog-to-digital_converter wikiPageWikiLink Dynamic_range.
- Analog-to-digital_converter wikiPageWikiLink Effective_number_of_bits.
- Analog-to-digital_converter wikiPageWikiLink Electric_current.
- Analog-to-digital_converter wikiPageWikiLink Electricity_meter.
- Analog-to-digital_converter wikiPageWikiLink Electronic_filter.
- Analog-to-digital_converter wikiPageWikiLink Electronic_oscillator.
- Analog-to-digital_converter wikiPageWikiLink Electronics.
- Analog-to-digital_converter wikiPageWikiLink Feedback.
- Analog-to-digital_converter wikiPageWikiLink File:ADC_voltage_resolution.svg.
- Analog-to-digital_converter wikiPageWikiLink Flash_ADC.
- Analog-to-digital_converter wikiPageWikiLink Floor_and_ceiling_functions.
- Analog-to-digital_converter wikiPageWikiLink Frequency_counter.
- Analog-to-digital_converter wikiPageWikiLink Frequency_mixer.
- Analog-to-digital_converter wikiPageWikiLink Frequency_modulation.
- Analog-to-digital_converter wikiPageWikiLink Front_and_back_ends.
- Analog-to-digital_converter wikiPageWikiLink Full_scale.
- Analog-to-digital_converter wikiPageWikiLink Glitch.
- Analog-to-digital_converter wikiPageWikiLink Gray_code.
- Analog-to-digital_converter wikiPageWikiLink Hertz.
- Analog-to-digital_converter wikiPageWikiLink Heterodyne.
- Analog-to-digital_converter wikiPageWikiLink Integral_linearity.
- Analog-to-digital_converter wikiPageWikiLink Integral_nonlinearity.
- Analog-to-digital_converter wikiPageWikiLink Integrated_circuit.
- Analog-to-digital_converter wikiPageWikiLink Integrating_ADC.
- Analog-to-digital_converter wikiPageWikiLink Interpolation.
- Analog-to-digital_converter wikiPageWikiLink Jitter.
- Analog-to-digital_converter wikiPageWikiLink Johnson–Nyquist_noise.
- Analog-to-digital_converter wikiPageWikiLink Least_significant_bit.
- Analog-to-digital_converter wikiPageWikiLink Line_level.
- Analog-to-digital_converter wikiPageWikiLink Linearity.
- Analog-to-digital_converter wikiPageWikiLink Logic_gate.
- Analog-to-digital_converter wikiPageWikiLink O.
- Analog-to-digital_converter wikiPageWikiLink Microcontroller.
- Analog-to-digital_converter wikiPageWikiLink Microprocessor.
- Analog-to-digital_converter wikiPageWikiLink Modem.
- Analog-to-digital_converter wikiPageWikiLink Multiplexer.
- Analog-to-digital_converter wikiPageWikiLink Noise_shaping.
- Analog-to-digital_converter wikiPageWikiLink Nyquist_frequency.
- Analog-to-digital_converter wikiPageWikiLink Nyquist_rate.
- Analog-to-digital_converter wikiPageWikiLink Nyquist–Shannon_sampling_theorem.
- Analog-to-digital_converter wikiPageWikiLink Operational_amplifier_applications.
- Analog-to-digital_converter wikiPageWikiLink Optical_storage.
- Analog-to-digital_converter wikiPageWikiLink Opto-isolator.
- Analog-to-digital_converter wikiPageWikiLink Oversampling.
- Analog-to-digital_converter wikiPageWikiLink PH.
- Analog-to-digital_converter wikiPageWikiLink Peak_and_hold.
- Analog-to-digital_converter wikiPageWikiLink Phase_detector.