MCHPMCP3008-I/P

Overview

The MCP3008-I/P is a 10-bit Analog-to-Digital Converter (ADC) that provides eight channels of input in a convenient 16-pin PDIP package. It uses the Successive Approximation Register (SAR) architecture and communicates via a standard SPI serial interface, making it a popular choice for adding analog inputs to microcontrollers or single-board computers that lack integrated ADCs.

Why Choose This Part

The MCP3008-I/P excels due to its simple SPI interface and the through-hole PDIP package, which is ideal for breadboarding and rapid prototyping. It offers a programmable design that allows for either eight single-ended inputs or four differential pairs, providing flexibility for various signal types. With a 200ksps sampling rate at 5V, it is fast enough for most sensor-level data acquisition tasks.

Applications

Getting Started

To use this device, connect the SPI lines (CS/SHDN, DIN, DOUT, CLK) to your host controller and provide an external reference voltage to the VREF pin. For Raspberry Pi users, the 'spidev' Python library or 'Adafruit_CircuitPython_MCP3xxx' library are standard tools for reading data. Ensure decoupling capacitors are placed close to the VDD pin to maintain the 10-bit accuracy (approximately 0.097% precision).

MCP3008 Family

Comparing specs that differ across variants. The current part is highlighted.

Also Consider