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MCP3008 - 8-Channel 10-Bit ADC With SPI Interface
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The MCP3008 is an 8-channel, 10-bit analogue-to-digital converter (ADC) with an SPI interface. It adds analogue input capability to microcontrollers and micr...
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The MCP3008 is an 8-channel, 10-bit analogue-to-digital converter (ADC) with an SPI interface. It adds analogue input capability to microcontrollers and microcomputers that lack a built-in ADC — such as the Raspberry Pi — using just four SPI pins.
Key Features
- 8 Analogue Channels – Read up to 8 analogue inputs independently
- 10-Bit Resolution – 1024 discrete levels per channel
- SPI Interface – Only 4 pins required for communication
- Wide Voltage Range – 2.7 V to 5.5 V operation
- DIP Package – Breadboard-friendly through-hole IC
Ideal For
- Adding analogue inputs to Raspberry Pi
- Sensor reading with Arduino and other microcontrollers
- Data acquisition and monitoring projects
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- ADC
- An analogue-to-digital converter reads a changing voltage and turns it into a number the microcontroller can use. It matters when connecting analogue sensors such as light, sound, or variable-resistor sensors.
- SPI
- A fast serial communication bus often used for displays, memory cards, and sensors. It matters because SPI devices need specific pins for clock and data, plus a separate chip-select line for each device.
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