{"title":"MCP3424 18-Bit ADC-4 Channel with Programmable Gain Amplifier","handle":"mcp3424-18-bit-adc-4-channel-with-programmable-gain-amplifier","url":"/products/mcp3424-18-bit-adc-4-channel-with-programmable-gain-amplifier","description":"A 4-channel, 18-bit delta-sigma analogue-to-digital converter (ADC) module based on the Microchip MCP3424. This module adds high-accuracy analogue input capability to Raspberry Pi, Arduino, and other microcontroller platforms over I2C.\n\nThe onboard programmable gain amplifier (PGA) allows the module to measure very weak signals with high resolution, while self-calibration of offset and gain on every conversion ensures consistent accuracy without manual trimming.\n\nKey Features\n\n\n18-Bit Resolution – Programmable at 12, 14, 16, or 18 bits\n\n4 Differential Channels – Measure multiple analogue signals simultaneously\n\nProgrammable Gain Amplifier – ×1, ×2, ×4, ×8 gain settings\n\nSelf-Calibrating – Automatic offset and gain calibration per conversion\n\nI2C Interface – Simple two-wire connection to your microcontroller\n\nTwo Conversion Modes – One-shot (low power) and continuous\n\nLow Standby Current – 300 nA at 5V\n\n\nSpecifications\n\n\nOperating Voltage – 2.7–5.5V\n\nStandby Current – 300 nA (5V)\n\nOperating Temperature – -40°C to +125°C\n\nVoltage Reference – 2.048V ±0.05%, drift 15 PPM/°C\n\nPGA Gain – ×1, ×2, ×4, ×8\n\nDifferential Input Range – -2.048V/PGA to +2.048V/PGA\n\nData Rate – 240, 60, 15, 3.75 SPS (corresponding to 12, 14, 16, 18-bit)\n\nGain Error – 0.05% (PGA=1, 18-bit)\n\nOffset Error – 15 µV (PGA=1, 18-bit)\n\nInput Interface – 4 differential channels, 2.54 mm pin header\n\nOutput Interface – I2C, 2.54 mm pin header\n\nBoard Size – 27 × 16 mm (1.06 × 0.63″)\n\n\nIdeal For\n\nTemperature sensing with RTD, thermistors, and thermocouples\nBridge sensing for pressure, strain, and force\nWeigh scales and load cells\nBattery fuel gauges\n\n\nPackage Contents\n\n1× MCP3424 18-Bit ADC Module\n\n\nResources\n\nDFRobot Wiki\nArduino Library\nRaspberry Pi Library\nDatasheet (PDF)\nSchematic (PDF)\n","vendor":"DFRobot","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":11905,"title":"Default Title","sku":"DF-DFR0316","price":20.34,"on_sale":false,"in_stock":true,"available_quantity":127,"option1":"Default Title"}]}