![]() ![]() In this mode, the ADC continuously monitors the analog input for an "out-of-range" condition and provides an interrupt if the measured voltage goes out-of-range. The devices feature an automatic conversion mode, which frees up the controller and I 2C interface. The ADC's alert feature provides an interrupt that is activated when the analog input violates a programmable upper or lower limit value. These devices feature an I 2C-compatible serial interface that operates in all three speed modes, including high-speed mode (3.4 MHz). The ADC081C021 and ADC081C027 operate from a single supply which also serves as the reference. The converters are based on a successive approximation register architecture with an internal track-and-hold circuit that can handle input frequencies up to 11 MHz. Texas Instruments' ADC081C021 and ADC081C027 are low-power, monolithic, 8-bit, analog-to-digital converters (ADCs) that operate from a 2.7 V to 5.5 V supply.
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