ADS1115 Analog to Digital Converter Module

The ADS1115 is an ultra-compact, high-precision analog-to-digital converter (ADC) module development board, designed for applications requiring accurate and efficient analog signal conversion. Here are the key features, specifications, and pin descriptions of this module:

Key Features:

1. Ultra-Small Package: The ADS1113, ADS1114, and ADS1115 are precision ADCs with 16-bit resolution in a compact QFN package measuring 2mm x 1.5mm x 0.4mm.
2. Wide Supply Range: Operates within a supply voltage range from 2.0V to 5.5V, providing flexibility for various power sources.
3. Low Power Consumption: Designed for minimal power usage, consuming only 150µA in Continuous Mode and featuring automatic shutdown in single-shot mode.
4. Programmable Data Rate: Offers adjustable data rates from 8 samples per second (SPS) to 860 SPS, catering to different data acquisition needs.
5. Internal Low-Drift Voltage Reference: Enhances measurement precision with an internal voltage reference.
6. Internal Oscillator: Simplifies implementation with a built-in oscillator.
7. Internal PGA (Programmable Gain Amplifier): The ADS1114 and ADS1115 include an onboard PGA that supports input ranges from the supply voltage to as low as ±256mV.
8. I2C Interface: Facilitates data transfer through an I2C-compatible serial interface, with four selectable I2C slave addresses.
9. Flexible Inputs: The ADS1115 provides four single-ended inputs or two differential inputs, offering versatile input options.
10. Programmable Comparator: Features a programmable comparator for applications requiring threshold detection, available in ADS1114 and ADS1115.
11. Wide Temperature Range: Operates effectively within a temperature range from -40°C to +125°C, suitable for various environmental conditions.

Applications:

The ADS1115 is ideal for a variety of applications, including:

• Portable instrumentation
• Consumer electronics
• Battery monitoring
• Industrial automation
• Precision measurements

Product Parameters:

• Power/Logic Level: 2.0V to 5.5V
• Low Current Consumption:
  • Continuous mode: only 150µA
  • Single shot mode: automatic shutdown
• Resolution: 16 bits
• Programmable Sampling Rate: 8 to 860 samples/sec
• Internal Low-Drift Voltage Reference
• Internal Oscillator
• Internal PGA: Up to 16x gain
• I2C Interface: 4-pin with optional address
• Input Configuration: Four single-ended or two differential inputs
• Programmable Comparator

Pin Descriptions:

Summary:

The ADS1115 Analog-to-Digital Converter (ADC) Module is a high-resolution, low-power device offering significant flexibility in input ranges and operational modes. Its compact design, wide supply range, and low power consumption make it well-suited for applications where accuracy and efficiency are critical. With programmable data rates, an internal programmable gain amplifier, and a user-friendly I2C interface, the ADS1115 is an excellent choice for precise and reliable analog signal conversion in various electronic projects.