austriamicrosystems introduces the AS1538 — an I²C interfaced ADC with power consumption in the µA range, expanding austriamicrosystems high-performance ADC portfolio. The AS1538 combines low-power operation, maximum possible conversion speed for I²C and fully-differential or single-ended analog input modes together with outstanding dynamic performance (THD 㫣dB) in a 16-pin TSSOP package. All this and its ease of use makes the AS1538 well-suited for 2.7 to 5.25 V battery-powered and industrial applications using an I²C bus. The AS1538 offers 12-bit resolution on each of the eight input channels. With a conversion speed of 50ks/s while using less as 850µA supply current (including the internal reference), austriamicrosystems again demonstrates its continued leadership in low power consumption. In shutdown mode the supply current drops to less than 1.5µA. The internal 2.5 V reference or an external reference in the 1 to 5.25 V range determines the full-scale analog input range.


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