Fermion: MCP3424 18-Bit ADC-4 Channel with Programmable Gain Amplifier for Raspberry Pi (Breakout)

The module integrates MCP3432 A/D converter chip. The module can provide analog input function forRaspberry Piand provide high accuracy analog input forArduino.

MCP3424 is one of the low noise and high accuracy 18-Bit delta-sigmaanalog-to-digital (ΔΣ A/D) converter familymembers of the MCP342X series. Its characteristic is:
Self calibration of internal offset and gain per each conversion.

User can select the PGA gain before the analog-to-digital conversion takes place. This allows the device to convert a very weak input signal with high resolution.

The device have two conversion modes:

• (a)One-Shot mode: the device performs a single conversion and enters a low current standby mode automatically until it receives another conversion command.
• (b)Continuous mode: the conversion takes place continuously at the set conversion speed.

• Temperature Sensing with RTD, Thermistor, and Thermocouple
• Bridge Sensing for Pressure, Strain, and Force
• 衡量尺度
• Battery Fuel Gauges

• Operating Voltage: 2.7 - 5.5V
• Standy Current: 300nA （5V）
• Operating Temperature: -40°C ~ +125°C
• On-Board Voltage Reference: 2.048V ± 0.05%, Drift 15 PPM /°C
• On-Board Programmable Gain Amplifier (PGA): x1,x2,x4,x8
• Differential Input Full Scale Range: -2.048V / PGA ~ 2.048V / PGA (e.g., PGA=4, Range is -0.512 ~ 0.512V)
• Programmable Resolution: 12, 14, 16, 18bits
• Programmable Data Rate: 240, 60, 15, 3.75 SPS
• Gain Error: 0.05% (PGA = 1, 18bits)
• Offset Error: 15uV (PGA = 1, 18bits)
• Input Interface: 4 differential channels, PIN header of 2.54mm spacing
• Output Interface: I2C, PIN header of 2.54mm spacing
• Size: 27x16mm(1.06x0.63")

• Wiki (MCP3424 18-Bit ADC-4 Channel with Programmable Gain Amplifier)
• Arduino Library
• Raspberry Pi Library
• 数据表
• Schematic

• MCP3424 18-Bit ADC-4 Channel with Programmable Gain Amplifier x1