ADS1115 16-Bit ADC - 4 Channel with Programmable Gain Amplifier STEMMA QT/Qwiic- Adafruit 1085

Index: ADA-08444 EAN: 5904422311728

Module with analog to digital converter with 16-bit precision. Running at a speed of up to 860 samples per second. It has the ability to change the amplification of up to 16 x. It is supplied with the voltage from 2 V to 5.5 V and communicates via I2C.

ADS1115 16-Bit ADC - 4 Channel with Programmable Gain Amplifier STEMMA QT/Qwiic- Adafruit 1085
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Manufacturer: Adafruit
Compatibility: Arduino Raspberry Pi

Description

Module with analog to digital converter with 16-bit precision. Running at 860 samples per second, it can be configured in 4-channel mode, or with two differential inputs. It has the possibility to change amplification of up to 16x through software method. The system is supplied with the voltage from 2 V to 5 V. The board consists of ferrite chokes which filter the voltage.

 

For communication, it uses the popular I2C interface, with the possibility to choose one of the five available 7-bit addresses. Thanks to this solution, on one bus can be connected several sensors

 

The product is compatible with Arduino and Raspberry Pi

The manufacturer provides the sample code for Raspberry Pi (available inthe library Adafruit Pi Python) andthe library for Arduino on GitHubalong witha detailed description of the connection.

 

Connection

All pins have been properly signed on board:

  • VDD- lower voltage from the range of from 2.0 V to 5.5 V
  • GND- ground of the system
  • SCL - the clock line of the I2C bus
  • SDA- data line of the I2C bus
  • ADDR- the address selection of the I2C bus
  • ALRT - alarm signal is generated when the analog value exceeds the threshold
  • A+, A0, A1, A2, A3, A- - analog inputs

ADS1115 - przetwornik ADC 16-bitowy 4-kanałowy I2C z programowym wzmocnieniem - Adafruit 1085

 

Pins are the solder fields for soldering the attachedgoldpin connectors with the pitch of 2.54 mm. Thanks to them, it is possible to connect the system with thebreadboardor the main module (e.g. Raspberry Pi orArduino) viawires.

 

The I2C bus address selection

To change the 7-bit address from the default 0x48 (1001000), you should connect the ADR pin to:

  • 0x48 (1001000) ADR -> GND
  • 0x49 (1001001) ADR -> VDD
  • 0x4A (1001010) ADR -> SDA
  • 0x4B (1001011) ADR -> SCL

 

Specification

  • Supply voltage: from 2.0 V to 5.5 V
  • Low current consumption: in continuous measuring mode 150 µa
  • Programmable sampling speed: 8 sps to 860 sps
  • Built-in oscillator
  • Communication interface: I2C
  • The possibility to work in 4-channel mode or with two differential inputs
  • Programmable amplification
  • Possibility to choose I2C bus address from the range of 0x48 - 0x4B

 

Package width 7 cm
Package height 7 cm
Package depth 0.4 cm
Package weight 0.004 kg

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ADS1115 16-Bit ADC - 4 Channel with Programmable Gain Amplifier STEMMA QT/Qwiic- Adafruit 1085

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