SparkFun Qwiic 12 Bit ADC ‐ 4 Channel (ADS1015) 

DEV-15334

A lot of the time you just need to add more analog inputs to solve a problem. It happens. The

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 our handy Qwiic system, no soldering is required to connect it to the rest of your

system. However, we still have broken out 0.1"-spaced pins in case you prefer to use a breadboard.

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,

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.

We 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, we added an

isolation jumper so you can use channel A3 however you'd like.

that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm

pitch, 4-pin JST connector. This reduces the amount of required PCB space, and polarized

connections mean you can’t hook it up wrong.