There is an updated version of this HAT available HERE

Based on the Microchip MCP3208 A/D Converter IC, this hat has (8) 12-Bit channels accessed via SPI. It supports a sample rate of 100 ksps and has 8 analog inputs in single-ended mode or 4 inputs in differential-pair mode. It has a self-healing poly fuse on the 5V line, filter capacitors, and a power LED. MAX analog input voltage is 5.2v.

MCP3208

• 8 analog input channels 100 ksps max. sampling rate at VDD = 5V
• 12-Bits of resolution (when powered with 5V.)
• Max analog input voltage = 5.2v
• Analog inputs programmable as single-ended or pseudo-differential pairs
• On-chip sample and hold SPI serial interface (modes 0,0 and 1,1)
• Low power CMOS technology 500 nA typical standby current, 2 µA max. 400 µA max. active current at 5V Industrial temp range: -40°C to +85°C

BOARD FEATURES

• 3.3V, 5V, and GND connection terminals
• Board can back-power Raspberry Pi via 5V and GND connection terminals
• Self-healing poly fuse to prevent overcurrent damage to Raspberry Pi
• Filter capacitors on 5V input/output line Green power LED
• High-quality screw-terminals on all channels (COLOR MAY VARY)
• Hardware or Software SPI, selectable via jumpers. SPI can use CEO of CE1, selectable via solder jumper
• Footprint for EEPROM and supporting passive components to allow you to turn into true rPI HAT (EEPROM and passives optional.)
• Stackable header option

NOTE: This board ships with all headers un-soldered. Some light soldering is required to connect the headers and connectors. You can optionally elect to have the board shipped to you complete assembled for a nominal fee by selecting the option on the right.

All SMD components are pre-assembled, including the EEPROM and related passive components if you select to add them, regardless of the options selected.

NOTE: The mcp3208 library used by the examples was removed by the creator. You can find a workaround documented in my github repository here:

https://github.com/cburgess5294/BurgessWorld/blob/master/MCP3208_Examples