{"product_id":"adafruit-ads7830-8-channel-8-bit-adc-with-i2c-stemma-qt-qwiic","title":"Adafruit ADS7830 8-Channel 8-Bit ADC with I2C - STEMMA QT \/ Qwiic","description":"\u003cp\u003eMany microcontrollers have ADCs these days, for reading analog\/resistive sensors like potentiometers, thermistors, LDR light sensors, etc. but sometimes you need MOAR! Or maybe you're using a single-board computer like a \u003ca href=\"\/nl\/collections\/raspberry-pi-store\"\u003eRaspberry Pi\u003c\/a\u003e that has no ADCs at all!\u003c\/p\u003e \u003cp\u003eThe Adafruit ADS7830 8-Channel 8-Bit ADC with I2C is an affordable 8-channel ADC with an I2C interface, so it's easy to include with any platform. Wire up to the SDA\/SCL pins plus power and ground, only four wires are required. If you need more than 8 channels, there are 2 address pins so you could have 4 x 8 = 32 total ADC channels with chain-able \u003ca href=\"\/nl\/search?q=QT+cables\u0026amp;narrow_by=\u0026amp;sort_by=relevency\u0026amp;page=1\"\u003eStemma QT cables\u003c\/a\u003e.\u003c\/p\u003e \u003cp\u003eNote that this chip isn't the fanciest ADC on the market: you can get up to 70 Ksamples per second (you'll need 3.4MHz I2C speed support for max speed rate), and only 8-bits of resolution, so it's good for rough sensor measurements. For example, this would definitely be a great way to add a ton of potentiometers or flex sensors to a build, but wouldn't be a good match for precision thermistor conversion.\u003c\/p\u003e \u003cp\u003eTo use it, check out our \u003ca href=\"https:\/\/github.com\/adafruit\/Adafruit_ADS7830\"\u003eArduino library\u003c\/a\u003e which will quickly let you read from any of the 8 channels as single-ended inputs - or you can use differential mode which will use two adjacent pins for the positive and negative references. You can power the board with 3 or 5V power and logic, which will also act as the reference voltage and pullup voltage. Or you can change the reference voltage by cutting the jumper on the back and wiring to the breakout pad, as long as it is less than the power supply.\u003c\/p\u003e \u003cp\u003eTo get you going fast, we spun up a custom-made PCB in the \u003ca href=\"https:\/\/www.adafruit.com\/search?q=stemma%20qt%20sensor\"\u003eSTEMMA QT form factor\u003c\/a\u003e, making it easy to interface with. The \u003ca href=\"\/nl\/search?q=stemma+qt\u0026amp;narrow_by=\u0026amp;sort_by=relevency\u0026amp;page=1\"\u003eSTEMMA QT connectors\u003c\/a\u003e on either side are compatible with the \u003ca href=\"\/nl\/search?q=sparkfun+qwiic\u0026amp;narrow_by=\u0026amp;sort_by=relevency\u0026amp;page=1\"\u003eSparkFun Qwiic I2C connectors\u003c\/a\u003e. This allows you to make solderless connections between your development board and the ADS7830 or to chain it with a wide range of other sensors and accessories using a compatible cable.\u003c\/p\u003e \u003cp\u003eQT Cable is not included, but we have a \u003ca href=\"\/nl\/search?q=stemma+qt+cable\u0026amp;narrow_by=\u0026amp;sort_by=relevency\u0026amp;page=1\"\u003evariety in the shop\u003c\/a\u003e.\u003c\/p\u003e \u003cp\u003eComes with a bit of 0.1\" standard header in case you want to use it with a \u003ca href=\"\/nl\/collections\/solderless-breadboards\"\u003ebreadboard\u003c\/a\u003e or \u003ca href=\"\/nl\/collections\/prototyping-pcbs-and-perfboard\"\u003eperfboard\u003c\/a\u003e. Four mounting holes for easy attachment.\u003c\/p\u003e \u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"\/\/www.youtube.com\/embed\/aqFL7H6xyao?si=43mPLDitptn5eD5d\u0026amp;start=145\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen=\"allowfullscreen\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e \u003ch2\u003eSpecifications\u003c\/h2\u003e \u003cul\u003e \u003cli\u003eResolution (Bits): 8\u003c\/li\u003e \u003cli\u003eSample Rate (max) (ksps): 70\u003c\/li\u003e \u003cli\u003eNumber of Input Channels: 8\u003c\/li\u003e \u003cli\u003eInterface type: I2C\u003c\/li\u003e \u003cli\u003eArchitecture: SAR\u003c\/li\u003e \u003cli\u003eInput Type: Pseudo-Differential, Single-ended\u003c\/li\u003e \u003cli\u003eMultichannel Configuration: Multiplexed\u003c\/li\u003e \u003cli\u003eReference Mode: External, Internal\u003c\/li\u003e \u003cli\u003eInput VoltageRrange: (max) (V) 5.25\u003c\/li\u003e \u003cli\u003eInput Voltage Range: (min) (V) 0\u003c\/li\u003e \u003cli\u003eOperating Temperature Range: (°C) -40 to 85\u003c\/li\u003e \u003cli\u003eAnalog\/Digital Supply: (min) (V) 2.7\u003c\/li\u003e \u003cli\u003eAnalog\/Digital Supply Voltage: (max) (V) 5.25\u003c\/li\u003e \u003cli\u003eSNR: (dB) 50\u003c\/li\u003e \u003cli\u003eDimensions: 30.5mm x 17.7mm x 4.7mm\u003c\/li\u003e \u003cli\u003eWeight: 2.1g\u003c\/li\u003e \u003c\/ul\u003e \u003ch2\u003eResources\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-ads7830-8-channel-8-bit-adc\"\u003ePrimary Guide\u003c\/a\u003e\u003c\/li\u003e \u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":50847524487441,"sku":"ADA5836","price":5.6,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6285\/6209\/files\/adafruit-ads7830-8-channel-8-bit-adc-with-i2c-stemma-qt-qwiic-the-pi-hut-ada5836-41453662732483.jpg?v=1735214679","url":"https:\/\/abcd3032.myshopify.com\/nl\/products\/adafruit-ads7830-8-channel-8-bit-adc-with-i2c-stemma-qt-qwiic","provider":"Tayyab Zak","version":"1.0","type":"link"}