SparkFun Qwiic 12 Bit ADC - 4 Channel

  • Brand: Sparkfun
  • Product Code: DEV-15334
  • Stock

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  • R218.00 (price excl. VAT)


SparkFun Qwiic 12 Bit ADC - 4 Channel

The SparkFun Qwiic 12 Bit ADC can provide four channels of I2C controlled ADC input to your Qwiic enabled project. These channels can be used as single-ended inputs, or in pairs for differential inputs. What makes this even more powerful is that it has a programmable gain amplifier that lets you "zoom in" on a very small change in analog voltage (but will still effect your input range and resolution). Utilizing the handy Qwiic system, no soldering is required to connect it to the rest of your system. However, SparkFun have still have broken out 0.1"-spaced pins in case you prefer to use a breadboard.

DEV-15334-000

The ADS1015 uses its own internal voltage reference for measurements, but a ground and 3.3V reference are also available on the pin outs for users. This ADC board includes screw pin terminals on the four channels of input, allowing for solderless connection to voltage sources in your setup. It also has an address jumper that lets you choose one of four unique addresses (0x48, 0x49, 0x4A, 0x4B). With this, you can connect up to four of these on the same I2C bus and have sixteen channels of ADC. The maximum resolution of the converter is 12-bits in differential mode and 11-bits for single-ended inputs. Step sizes range from 125μV per count to 3mV per count depending on the full-scale range (FSR) setting.

SparkFun have included an onboard 10K trimpot connected to channel A3. This is handy for initial setup testing and can be used as a simple variable input to your project. But don't worry, SparkFun have added an isolation jumper so you can use channel A3 however you'd like.

Quick Spec

  • Operating Voltage (VDD): 2 - 5.5V
  • Operation Modes: Single-Shot, Continuous-Conversion (Default), and Duty Cycling
  • Resolution: 12-bit (Differential) or 11-bit (Single-Ended)
  • Sample Rate: 128 Hz to 3.3 kHz (Default: 1600SPS)
  • Current Consumption (Typical): 150μA-200μA
  • I2C Address: 0x48 (Default), 0x49, 0x4A, or 0x4B
  • Onboard 10K trimpot

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Tags: sparkfun, qwiic, 12 bit, adc, dac, analog to digital, converter, 4 channel, 4 way