Therefore, we will begin with DAC circuitry and then move to ADC circuitry. It is much easier to convert a digital signal into an analog signal than it is to do the reverse. Together, they are often used in digital systems to provide the complete interface with analog sensors and output devices for control systems such as those used in automotive engine controls: In block diagram form, it looks like this: In block diagram form, it can be represented as such:Ī DAC, on the other hand, inputs a binary number and outputs an analog voltage or current signal. Analog to Digital ConverterĪn ADC inputs an analog electrical signal such as voltage or current and outputs a binary number. An analog-to-digital converter, or ADC, performs the former task while a digital-to-analog converter, or DAC, performs the latter. What is needed is a way to electronically translate analog signals into digital (binary) quantities, and vice versa. 16-Bit 40-KSPS Low Power Sampling Analog-to-Digital Converter datasheet. However, when analog devices are involved, interfacing becomes much more complex. 16-Bit 40KSPS Analog-to-Digital Converter With Internal Reference and Parallel/Serial Interface. Switches, relays, and encoders are easily interfaced with gate circuits due to the on/off nature of their signals. Connecting digital circuitry to sensor devices is simple if the sensor devices are inherently digital themselves.
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