{"title":"Qwiic 24-Bit 4-Channel ADC Breakout - ADS1219","handle":"sparkfun-qwiic-24-bit-adc-4-channel-ads1219","url":"/products/sparkfun-qwiic-24-bit-adc-4-channel-ads1219","description":"When the ADC built into your microcontroller is not precise enough, this Qwiic breakout adds a high-resolution Texas Instruments ADS1219 for measuring very small analogue voltage changes.The board provides four channels of 24-bit analogue input, which can be used as four single-ended inputs or configured for differential measurements. A programmable gain amplifier with x1 and x4 settings helps with tiny signals from sources such as strain gauges and scientific sensors.Connection is simple through the Qwiic Connect System, so you can add it to a compatible I2C project without soldering. For breadboard use or external references, the analogue inputs, interrupt and reference pins are also broken out to standard 0.1\"-spaced pads. Documentation includes a schematic, board dimensions, ADS1219 datasheet, hookup guide, Arduino library and hardware repository.Features:High-resolution ADC: Built around the Texas Instruments ADS1219Analogue channels: Four channels of high-resolution analogue inputInput configuration: Configurable as four single-ended inputs or two differential pairsProgrammable gain amplifier: x1 and x4 gain settingsFine measurement: Precision down to 61.04 nV per countQwiic Connect System: Connects to a microcontroller in seconds with no soldering requiredDaisy-chain support: Up to 16 boards on a single bus for 64 channels of ADC inputBreadboard-friendly pads: Analogue inputs, interrupts and reference pins broken out to standard 0.1\"-spaced padsSpecifications:IC: ADS1219Operating Voltage (VDD): 2.3V - 5.5VQwiic cable operating voltage note: When powering with a Qwiic cable, the operating voltage is 3.3V onlyOperating Temperature: -40°C to 125°COperation Modes: Single-Shot, Continuous-Conversion, and Power-DownAnalog Inputs: Four single-endedDifferential input configuration: Can be configured as one or two differential inputsReference voltage inputs: Separate reference voltage inputsVDDA (AVDD): can also be configured via the jumper and breakout padResolution: 24-bit maximum, 20-bit effectiveLSB size (gain x1): 244.14nVLSB size (gain x4): 61.04nVSample Rate: 20 Hz to 1 kHzCombined Current Consumption (Typical): 8μA - 410μANoise rejection: 50Hz and 60Hz noise rejectionInput multiplexer: Configurable input multiplexerConfigurable I2C addresses: SixteenI2C address range: 0x40 - 0x4FDefault I2C address: 0x40Qwiic connection ports: 2xPower LED: configurableDimensions: 1\" x 1\"A handy precision ADC board for Qwiic projects, sensor interfaces, data logging and experiments that need more resolution than a typical microcontroller ADC.","vendor":"SparkFun","product_type":"ADC Breakout","in_stock":false,"options":[],"variants":[{"id":15859,"title":"Default Title","sku":"SF-SEN-27544","mpn":"SEN-27544","price":29.4,"on_sale":false,"in_stock":false,"available_quantity":0}]}