A/D and D/A
| Analog to digital converter The purpose of an analog to digital converter is turn a given voltage into a binary input which a micro-controller or a cpu are able to read. The main problem is resolution. The higher the number of bits on the digital side the better the resolution is. example of a sin wave analog(upper) and digital(lower) Connection diagram of an analog to digital converter ADC0804 with 8 pins output: Connection diagram of an analog to digital converter ADC0804 with 4 pins output: Digital to analog converter The purpose of a digital to analog converter is turn a binary output from a micro-controller or a cpu to an analog voltage. The main problem is resolution. The higher the number of bits on the digital side the better the accuracy on the analog side. A graph which shows the calculation of the binary level compared with the analog level Connection diagram of a digital to analog converter DAC0808 with 8 pins input: The connection of the operational amplifier which is needed on the output of the DAC0808 back to basic electronic circuits for robotics page |
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