The ADS1110A5IDBVR: The sigma-delta modulator samples at 240 SPS. The PGA accepts input spans down to the millivolt range, letting the ADC resolve small sensor outputs without an external gain stage. The internal reference eliminates the reference pin and its external bypass cap — one fewer component to place around the SOT-23-6 footprint, which is tight enough that every capacitor location counts. The I²C interface runs at standard and fast-mode speeds. The selectable address lets up to eight ADS1110 devices share the same bus, each with its own gain and conversion rate settings.
SOT-23-6 layout and supply decoupling
The SOT-23-6 package (supplier device package SOT-23-6) occupies roughly 2.9 mm × 1.6 mm of board area. The MSL rating for this package is Level-1 (moisture sensitivity level per JEDEC J-STD-020), so no bake-out is required before reflow as long as the floor life is under 168 hours at ≤30°C/85% RH.