The 4 channel ADS1115 16 BIT ADC I²C module is a great general purpose 16-bit converter. The chip can be configured as 4 single-ended input channels, or two differential channels. It contains 4 precision, low-power, 16-bit, I2C-compatible, analog-to-digital converters (ADCs). It also has a low-drift voltage reference and an oscillator as well as a programmable gain amplifier (PGA) to help boost smaller single/differential signals to the full range and a digital comparator.
Features:

1. low-drift reference voltage
2. internal oscillator
3. internal programmable gain amplifier
4. 4 single-ended channels or 2 differential channels
5. programmable comparator
6. low current consumption with auto shut-down mode

Specifications:

1. operating voltage: 2 to 5.5 VDC
2. operating current: 150 uA in continuous mode
3. precision: 16 bits
4. programmable data rate: 8 to 860 samples per second
5. interface: I²C with 4 pin selectable addresses (0x48-0x4B)

vma453a4v01.pdf

adc_basics.pdf

ads1115_datasheet01.pdf

ads1115_datasheet02.pdf

vma453_example.zip

adafruit_ads1x15_master.zip

ce_rohs_open.pdf