Texas Instruments

ADS1115 Industry's Smallest 16-bit ADC

Texas Instruments' ADS1115 - One of Industry's Smallest 16-bit ADCs

Texas Instruments' ADS1115 are precision analog-to-digital converters (ADCs) with 16 bits of resolution offered in an ultra-small, leadless QFN-10 package or an MSOP-10 package. The ADS1115 are designed with precision, power, and ease of implementation in mind. The ADS1115 feature an onboard reference and oscillator. Data are transferred via an I2C-compatible serial interface; four I2C slave addresses can be selected. The ADS1115 operate from a single power supply ranging from 2 V to 5.5 V.

The ADS1115 can perform conversions at rates up to 860 samples per second (SPS). An onboard PGA is available that offers input ranges from the supply to as low as ±256 mV. This allows both large and small signals to be measured with high resolution. The ADS1115 also features an input multiplexer (MUX) that provides two differential or four single-ended inputs.

The ADS1115 operate either in continuous conversion mode or a single-shot mode that automatically powers down after a conversion and greatly reduces current consumption during idle periods. The ADS1115 are specified from -40°C to 125°C.

Features
  • Ultra-small QFN package: 2 mm x 1.5 mm x 0.4 mm
  • Wide supply range: 2 V to 5.5 V
  • Low current consumption:
    • Continuous mode: only 150 µA
    • Single-shot mode: auto shut-down
  • Programmable data rate: 8 SPS to 860 SPS
  • Internal low-drift voltage reference
  • Internal oscillator
  • Internal PGA
  • I2C interface: pin-selectable addresses
  • Four single-ended or two differential inputs
  • Programmable comparator
Applications
  • Portable Instrumentation
  • Consumer goods
  • Battery monitoring
  • Temperature measurement
  • Factory automation and process controls
发布日期： 2013-07-02

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