12-bit sigma-delta with a programmable front end
The Texas Instruments ADS1015IRUGR is a 12-bit sigma-delta ADC that integrates a multiplexer, programmable gain amplifier (PGA), and internal reference into a single X2QFN-10 package. It handles both differential and single-ended inputs across up to four channels, configured through the I²C interface. The PGA allows gain settings up to x16, which means a ±256 mV full-scale range is possible from a 2 V supply — useful for amplifying small sensor signals before conversion without an external op-amp.
Sampling rate and signal bandwidth
Sampling at 3.3 kSPS, this ADC is built for DC and low-frequency signals — thermocouples, strain gauges, pressure transducers, or battery monitoring — not audio or vibration. The sigma-delta architecture provides inherent noise shaping, so the effective resolution at lower data rates exceeds the 12-bit nominal figure. Supply range for both analog and digital sections is 2 V to 5.5 V from a single rail.
Industrial temperature and package fit
The X2QFN-10 package (2.0 mm × 1.5 mm) is a fine-pitch leadless package — board-level inspection requires X-ray for solder-joint verification under the exposed pad.