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  2. List of Arduino boards and compatible systems - Wikipedia

    en.wikipedia.org/wiki/List_of_Arduino_boards_and...

    Arduino Due with onboard Ethernet, software-compatible with Arduino Ethernet shield, D13 pin isolated with a MOSFET of which can also be used as an input. TAIJIUINO Due Pro [129] ATSAM3X8E [16] Elechouse Mostly compatible with Arduino Due. Includes RMII signals via a connector to allow access to the microcontroller's native Ethernet MAC.

  3. Comparison of single-board microcontrollers - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_single-board...

    Arduino Due [8] [9] Arduino Yes ATSAM3X8E [10] 84 MHz Mega 4 in × 2.1 in [ 101.6 mm × 53.3 mm ] USB 16U2 [11] + native host [12] 3.3 V 512 0 [13] 96 54 12 12 2 October 22, 2012 [14] The first Arduino board based on an ARM Processor. Features 2 channel 12-bit DAC, 84 MHz clock frequency, 32-bit architecture, 512 KB Flash and 96 KB SRAM. Unlike ...

  4. Digital-to-analog converter - Wikipedia

    en.wikipedia.org/wiki/Digital-to-analog_converter

    The R-2R ladder DAC which is a binary-weighted DAC that uses a repeating cascaded structure of resistor values R and 2R. This improves the precision due to the relative ease of producing equal valued-matched resistors. The successive approximation or cyclic DAC, [4] which successively constructs the output during each cycle. Individual bits of ...

  5. Analog-to-digital converter - Wikipedia

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

    A delta-encoded or counter-ramp ADC has an up-down counter that feeds a DAC. The input signal and the DAC both go to a comparator. The comparator controls the counter. The circuit uses negative feedback from the comparator to adjust the counter until the DAC's output matches the input signal and number is read from the counter. Delta converters ...

  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).

  7. Resistor ladder - Wikipedia

    en.wikipedia.org/wiki/Resistor_ladder

    Figure 2: 4-bit linear R–2R DAC using unequal resistors. It is not necessary that each "rung" of the R–2R ladder use the same resistor values. It is only necessary that the "2R" value matches the sum of the "R" value plus the Thévenin-equivalent resistance of the lower-significance rungs. Figure 2 shows a linear 4-bit DAC with unequal ...

  8. Data acquisition - Wikipedia

    en.wikipedia.org/wiki/Data_acquisition

    For example: Waiting for a trigger, starting the ADC, looking up the time, waiting for the ADC to finish, move value to RAM, switch multiplexer, get TTL input, let DAC proceed with voltage ramp. Today, signals from some sensors and Data Acquisition Systems can be streamed via Bluetooth.

  9. Successive-approximation ADC - Wikipedia

    en.wikipedia.org/wiki/Successive-approximation_ADC

    The circuit consists of an up-down counter with the comparator controlling the direction of the count. The analog output of the DAC is compared with the analog input. If the input is greater than the DAC output signal, the output of the comparator goes high and the counter is caused to count up. The tracking ADC has the advantage of being simple.