ADS1115IDGSR

• 16-Bit resolution, Four Analog inputs, Two channels, Bipolar Input Polarity
• Sampling and Conversion Rate Up to 860 Sps
• I2C Serial Interface
• Supply Range 2 V to 5.5 V, Nominal Supply Current 150 uA, 900 uW Dissipation
• INL 1 LSB
• 10-Pin VSSOP, 3 Mm X 3 Mm X 1.07 mm, -40 C to 125 C

The ADS1115IDGSR from Texas Instruments is a 16-bit delta-sigma analog-to-digital converter in a 10-pin VSSOP, providing four analog inputs configurable as two differential channels and communicating over I2C. It converts at up to 860 samples per second from a 2 V to 5.5 V supply while drawing a nominal 150 uA. Delta-sigma conversion oversamples the input and filters the result digitally, which trades throughput for resolution and noise performance relative to a SAR converter of the same package size. Integral nonlinearity is 1 LSB and power dissipation is 900 uW.

Low-speed, high-resolution I2C converters are used to digitise sensors whose output changes slowly but must be resolved finely: bridge and load-cell measurement, thermocouple and RTD front ends, battery and current monitoring, portable instrumentation, and add-on measurement boards for embedded controllers. The I2C interface and 10-pin package let designers add precision measurement to a board that has no spare SPI port or pin budget. Buyers include industrial sensing, medical device and embedded-platform OEMs. The part is in Production status with an Active manufacturer lifecycle, is RoHS compliant and lead free, and ships on tape and reel in 250-piece quantities.