MCP3008 IC

[vishnuvkv]

Hi,
How accurate is MCP3008 IC for analog to digital conversion ?If not, please suggest me any other modules that can be used as ADC and can be interfaced with RPi so that I can connect 7 analog inputs.

Thanks

[scotty101]

It is a 10bit ADC and has 8 input channels.

The full datasheet is readily available online

[DougieLawson]

What type of signal are you trying to sense? Voltage range? Resolution?

The MCP3008 is 10-bit 8-way and the comparator defaults to Vdd. It's capable of 200K samples per second with Vdd and Vref at 5V. It's not fast enough for audio.

[vishnuvkv]

What type of signal are you trying to sense? Voltage range? Resolution?

The MCP3008 is 10-bit 8-way and the comparator defaults to Vdd. It's capable of 200K samples per second with Vdd and Vref at 5V. It's not fast enough for audio.

Hi sir,

My inputs will be 2 temp sensor, 3 vibration sensor, 1 level sensor . How accurate it will be if I am using these sensors?

Thanks you

[vishnuvkv]

It is a 10bit ADC and has 8 input channels.

The full datasheet is readily available online

Thank you sir.

[scotty101]

My inputs will be 2 temp sensor, 3 vibration sensor, 1 level sensor . How accurate it will be if I am using these sensors?

Not possible to give an accuracy from what little information you provide. Accuracy is based on more than just the ADC itself. You need to consider the accuracy of any signal conditioning (OpAmps, Filters, etc) and that of the sensors themselves. For example how accurate is the temperature sensor?

An exact figure of accuracy is only something that you can work out based on your exact component choice and the figures stated in the datasheets for each component.