Pin guide for MCP300x, MCP320x and MCP330x chips
The MCP300x are 10 bit Analog to digital converters.
- MCP3001 - 1 Channel (1 circuit for logic and one for inputs)
- MCP3002 - 2 Channels (same circuit for logic and input)
- MCP3004 - 4 Channels (1 circuit for logic and one for inputs)
- MCP3008 - 8 Channels (1 circuit for logic and one for inputs)
The MCP320x are 12 bit Analog to digital converters.
- MCP3201 - 1 Channel (1 circuit for logic and one for inputs)
- MCP3202 - 2 Channels (same circuit for logic and input)
- MCP3204 - 4 Channels (1 circuit for logic and one for inputs)
- MCP3208 - 8 Channels (1 circuit for logic and one for inputs)
The MCP330x are 13 bit Analog to digital converters. (note we have no pinout guides for those yet)
- MCP3301 - 1 Channel (1 circuit for logic and one for inputs)
- MCP3302 - 4 Channels (same circuit for logic and input)
- MCP3304 - 8 Channels (1 circuit for logic and one for inputs)
Notice that the MCP3001 / MCP3201 differ from the others by not having any digital in.
The MCP3001 (and there is same pinout for MCP3201 and MCP3301):
| Pin number | Pin name |
Description |
|---|---|---|
| 1 | Reference voltage | Voltage that belongs to the analog circuit. |
| 2 | Analog input channel. | Analog voltage will be measured on this pin. |
| 3 | Analog ground | Ground which belongs to the analog circuit (or same ground if its the same circuit. |
| 4 | Digital ground | Ground of the circuit that runs the MCP3001 / MCP3201. |
| 5 | Chip select | Turns the chip on and off, Low = on, high = off. |
| 6 | Digital out | The chips sends data from this one in SPI communication. |
| 7 | Serial Clock | Used to provide clock signal for SPI communication |
| 8 | VDD | Voltage the drives the MCP3001 / MCP3201 chip. |
The MCP3002 (and there is same pinout for MCP3202):
Notice that the MCP3002 / MCP3202 differ from the others by having only one circuit, as in VDD and VREF is the same circuit and there is only one ground.
| Pin number | Pin name |
Description |
|---|---|---|
| 1 | Chip select | Turns the chip on and off, Low = on, high = off. |
| 2,3 | Analog input channels. | Analog voltage will be measured on those pins. |
| 4 | Ground | This is ground both for driving the chip and for the circuit that is being measured. |
| 5 | Digital in | Used for getting data from SPI communication. |
| 6 | Digital out | The chips sends data from this one in SPI communication. |
| 7 | Serial Clock | Used to provide clock signal for SPI communication |
| 8 | VDD / VREF | Voltage the drives the MCP3002 / MCP3202 chip as well. This is from same circuit as the power on the channels. |
The MCP3004 (and there is same pinout for MCP3204, and MCP3302):
| Pin number | Pin name |
Description |
|---|---|---|
| 1, 2, 3, 4 | Analog input channels. | Analog voltage will be measured on those pins. |
| 5, 6 | Not connected | |
| 7 | Digital ground | Ground of the circuit that runs the MCP3004 / MCP3204. |
| 8 | Chip select | Turns the chip on and off, Low = on, high = off. |
| 9 | Digital in | Used for getting data from SPI communication. |
| 10 | Digital out | The chips sends data from this one in SPI communication. |
| 11 | Serial Clock | Used to provide clock signal for SPI communication |
| 12 | Analog ground | Ground which belongs to the analog circuit (or same ground if its the same circuit. |
| 13 | Reference voltage | Voltage that belongs to the analog circuit. |
| 14 | VDD / VCC | Voltage the drives the MCP3004 / MCP3204 chip. |
The MCP3008 (and there is same pinout for MCP3208, and MCP3304):
- Channels: 8-Channel 10-bit ADC IC. (12 bit channels for the MCP3208)
- Communication protocol: Serial SPI interface.
- Operating voltage: 2.7V to 5V
| Pin number | Pin name |
Description |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7 , 8 | Analog input channels. | Analog voltage will be measured on those pins. |
| 9 | Digital ground | Ground of the circuit that runs the MCP3008 / MCP3208. |
| 10 | Chip select | Turns the chip on and off, Low = on, high = off. |
| 11 | Digital in | Used for getting data from SPI communication. |
| 12 | Digital out | The chips sends data from this one in SPI communication. |
| 13 | Serial Clock | Used to provide clock signal for SPI communication |
| 14 | Analog ground | Ground which belongs to the analog circuit (or same ground if its the same circuit. |
| 15 | Reference voltage | Voltage that belongs to the analog circuit. |
| 16 | VDD / VCC | Voltage the drives the MCP3008 / MCP3208 chip. |