The MCP3008 is an 8-Channel 10-bit ADC IC, so it can measure 8 different analog voltage with a resolution of 10-bit. It measures the value of analog voltage from 0-1023 and sends the value to a microcontroller or microprocessor through SPI communication.
It can operate on both 3.3V and 5V and hence it can be used with 5V microcontroller as well as with 3.3V systems like the Raspberry Pi. It uses the SAR method to convert the Analog voltage to digital value; it might not be the fastest and precise ADC in the market but is the cheapest and easy to use one.
Specifications
- Number of Bits: 10
- Sampling Rate (Per Second): 200 k
- Number of Inputs: 4, 8
- Input Type: Pseudo-Differential, Single Ended
- Data Interface: SPI
- Configuration: MUX-S/H-ADC
- Ratio – S/H:ADC: 1:1
- Number of A/D Converters: 1
- Architecture: SAR
- Reference Type: External
- Voltage – Supply, Analog and Digital: 2.7 V to 5.5 V
- Operating Temperature: -40°C to 85°C
- Package: 16-DIP (0.300″, 7.62mm)
- Mounting Type: Through Hole
- Base Number: MCP3008
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