A low power delta-sigma analog to digital converter 10 for converting current mode signals without an amplifier includes an integration capacitor 26, a comparator 30, and a first switch 24 in parallel with one another and coupled to an integration node 28. The thermal stresses arise as a result of temperature changes during processing and during operation and on account of the different expansion coefficients of the semiconductor and carrier substrate. The outgoing communication is transmitted by the cellular telephone to the CMR system, which recognizes and verifies the outgoing communication as originating with the communications interface. A first memory stores at least the control points and at least one lookup table stores the cubic weighting factors. A texture processing module controls when the tracking table is initialized and read back, and which identifiers are tracked.