Description:

• TI ADS1115 module uses the original 16-bit data acquisition chip ADS1115.4 individual input channel or 2 differential inputs, the highest single-channel sampling rate 860bps, default collection voltage -6.144 ~ + 6.144V. With onboard reference voltage and the on-board amplifiers, oscillators, ultra-low power consumption. Power and 4-way AD inputs were used filter circuit, I2C protocol interface with current limiting circuit interface is compatible with 5V and 3.3V. SCM requires only two ordinary IO ports and this board of SDA (data interface) and SCL (clock interface) connection can control ADS1115 data acquisition.
• ADS1115 chip features: *Low current consumption, can work a minimum of 150uA.
• Acquisition rate adjustable: 8SPS --- 860SPS.
• Low drift internal voltage reference.
• Internal oscillator.
• Internal programmable gain amplifier, the gain is adjusted to adjust the input range.
• Four single-ended inputs or 2 differential inputs, program control.
• Input range programmed control, 7-selectable input ranges:            -0.256V ~ + 0.256V, -0.512V ~ + 0.512V, -1.024V ~ + 1.024V.
•            -2.048V ~ + 2.048V, -4.096V ~ + 4.096V, -6.144V ~ + 6.144V.
• Note: negative voltage differential acquisition means: Channel 0- Channel 1 = negative voltage is required for each channel to be positive. The channel A and B on the ground is a negative voltage is not collected, please note!
• For example: Channel 0 (2.5V) - Channel 1 (5V) = -2.5V measurable at this time.
•            Channel 0 (2.5V) - Channel 1 (-2.5V) = 5V is not measurable at this time, and will burn Channel 1, do not try.
• In short: a negative voltage to the ground is not collected, please note!

Features:

• 2.0V-5.5V wide voltage power supply.
• Low current consumption, can work a minimum of 150uA.
• Acquisition rate adjustable: 8SPS --- 860SPS.
• Low drift internal voltage reference.
• Internal oscillator.