Description


The chip's fairly small so it comes on a breakout board with ferrites to keep the AVDD and AGND quiet. Interfacing is done via I2C. The address can be changed to one of four options (see the datasheet table 5) so you can have up to 4 ADS1115's connected on a single 2-wire I2C bus for 16 single ended inputs.

For microcontrollers without an analog-to-digital converter or when you want a higher-precision ADC, the ADS1115 provides 16-bit precision at 860 samples/second over I2C. The chip can be configured as 4 single-ended input channels, or two differential channels. As a nice bonus, it even includes a programmable gain amplifier, up to x16, to help boost up smaller single/differential signals to the full range. We like this ADC because it can run from 2V to 5V power/logic, can measure a large range of signals and its super easy to use. It is a great general purpose 16 bit converter. 


Will get you started with wiring diagrams:

Overview


The ADS1115 and ADS1015 4-channel  breakout boards are perfect for adding high-resolution analog to digital conversion to any microprocessor-based project.  These boards can run with power and logic signals between 2v to 5v, so they are compatible with all common 3.3v and 5v processors.  As many of 4 of these boards can be controlled from the same 2-wire I2C bus, giving you up to 16 single-ended or 8 differential channels.  A programmable gain amplifier provides up to x16 gain for small signals.

These two boards are very similar, differing only in resolution and speed.  The ADS1115 has higher resolution and the ADS1015 has a higher sample rate.


ADS1115 Features:


  • Resolution: 16 Bits
  • Programmable Sample Rate: 8 to 860 Samples/Second
  • Power Supply/Logic Levels: 2.0V to 5.5V
  • Low Current Consumption: Continuous Mode: Only 150µA Single-Shot Mode: Auto Shut-Down
  • Internal Low-Drift Voltage Reference
  • Internal Oscillator
  • Internal PGA: up to x16
  • I2C Interface: 4-Pin-Selectable Addresses
  • Four Single-Ended or 2 Differential Inputs
  • Programmable Comparator


ADS1015 Features:


  • Resolution: 12 Bits
  • Programmable Sample Rate: 128 to 3300 Samples/Second
  • Power Supply/Logic Levels: 2.0V to 5.5V
  • Low Current Consumption: Continuous Mode: Only 150µA Single-Shot Mode: Auto Shut-Down
  • Internal Low-Drift Voltage Reference
  • Internal Oscillator
  • Internal PGA: up to x16
  • I2C Interface: 4-Pin-Selectable Addresses
  • Four Single-Ended or 2 Differential Inputs
  • Programmable Comparator



Technical Details



  • WIDE SUPPLY RANGE: 2.0V to 5.5V
  • LOW CURRENT CONSUMPTION: Continuous Mode: Only 150µA Single-Shot Mode: Auto Shut-Down
  • PROGRAMMABLE DATA RATE: 8SPS to 860SPS
  • INTERNAL LOW-DRIFT VOLTAGE REFERENCE
  • INTERNAL OSCILLATOR
  • INTERNAL PGA
  • I2C INTERFACE: Pin-Selectable Addresses
  • FOUR SINGLE-ENDED OR TWO DIFFERENTIAL INPUTS
  • PROGRAMMABLE COMPARATOR
  • This board/chip uses I2C 7-bit addresses between 0x48-0x4B, selectable with jumpers






1085 - ADS1115 16-Bit ADC - 4 Channel with Programmable Gain Amplifier

  • Brands Adafruit
  • Product Code: ES001910
  • Availability: In Stock
  • 19.95€