Microchip
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8-channel 10-bit ADC over SPI. The standard way to give a Raspberry Pi analog inputs.
| Part number | MCP3008 |
|---|---|
| Manufacturer | Microchip |
| Category | Integrated Circuits › ADCs |
| Package | DIP-16 |
| Pins | 16 |
| Resolution | 10 bit |
| Channels | 8 |
MCP3008 pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | CH0 | analog | Analog channel 0 |
| 2 | CH1 | analog | Analog channel 1 |
| 3 | CH2 | analog | Analog channel 2 |
| 4 | CH3 | analog | Analog channel 3 |
| 5 | CH4 | analog | Analog channel 4 |
| 6 | CH5 | analog | Analog channel 5 |
| 7 | CH6 | analog | Analog channel 6 |
| 8 | CH7 | analog | Analog channel 7 |
| 9 | DGND | ground | Digital ground |
| 10 | CS/SHDN | input | Chip select, active low |
| 11 | DIN | input | SPI data in |
| 12 | DOUT | output | SPI data out |
| 13 | CLK | input | SPI clock |
| 14 | AGND | ground | Analog ground |
| 15 | VREF | analog | Reference voltage |
| 16 | VDD | power | Supply, 2.7–5.5V |
Schematic symbol and footprint
Schematic symbol
Footprint: DIP-16 — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.