型号 分类 制造商 库存 起订 价格 链接
ADC/DAC AND SPECIFIC APPLICATIONS IC Type N/A 贸泽采购

ADC/DAC & Specific Applications


ADC (Analog-to-Digital Converter)

  • Function: Converts continuous analog signals to discrete digital values.
  • Key Parameters:
    • Resolution (8, 10, 12, 16-bit)
    • Sampling Rate (e.g., 1 MSPS)
    • Signal-to-Noise Ratio (SNR)
    • INL/DNL
  • Types:
    • SAR ADC – Fast, medium resolution
    • Delta-Sigma – High resolution, low speed
    • Flash ADC – Very fast, low resolution

DAC (Digital-to-Analog Converter)

  • Function: Converts digital data into analog voltage/current.
  • Key Parameters:
    • Resolution (8–24 bit)
    • Settling Time
    • Output Range (e.g., 0–5V, ±10V)
    • Monotonicity
  • Types:
    • R-2R Ladder – Precision, moderate speed
    • Weighted Resistor – Fast, less accurate
    • Sigma-Delta DAC – High fidelity audio

Specific Applications

Application ADC Use Case DAC Use Case
Data Acquisition High-resolution Sigma-Delta for sensor readings (temp, pressure) N/A
Audio Systems 16–24 bit, 44.1/48 kHz sampling (ADC in mic input) High-res Sigma-Delta DAC in speakers/headphones
Motor Control SAR ADC for current/voltage feedback DAC generates PWM reference or analog drive signals
Communication High-speed ADC in SDR (Software Defined Radio) DAC generates RF waveforms
Medical Devices High-precision ADC in ECG/EEG systems DAC for stimulus signal generation
Note: Selecting ADC/DAC depends on resolution, speed, power, and interface (SPI/I2C/Parallel).
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