Sigma-delta ADC with integrated PGA and MUX
The ADS1015IRUGT is a 12-bit sigma-delta ADC from Texas Instruments, configured as MUX-PGA-ADC with two differential or four single-ended inputs. The built-in programmable gain amplifier (PGA) lets you scale small sensor signals before conversion, reducing the need for external signal conditioning. Sampling at 3.3 kSPS, this part is sized for low-bandwidth measurement channels — temperature, pressure, strain gauges, or battery monitoring — where the sigma-delta architecture gives good noise rejection at the line-frequency bands. The I²C interface keeps the bus wiring minimal; the selectable address feature lets you put up to four of these on the same two-wire bus.
A single 2V to 5.5V rail powers both the analog and digital sections, which simplifies the power tree — no separate analog and digital supplies needed. Housed in a 10-X2QFN package measuring 2x1.5 mm, the footprint is compact enough for space-constrained sensor modules or handheld instruments. The internal reference eliminates the external reference IC and its associated bypass caps, saving two components per channel.
Listed as active in production with ROHS3 compliance.