Analog peripheral IC simplifies real-world i/o for processors. (input/output) (Micro Linear Corp.'s ML2377 integrated circuit) (Product Announcement)

EDN, August, 1992 by Quinnell, Richard A.

Packing the equivalent of four analog ICs, the ML2377 microprocessor [(Unkeyable P)] peripheral IC provides a complete analog I/O channel. The device includes A/D and D/A converters, input multiplexers, and S/H circuits.

The device operates from a single 5V supply and provides a nominal analog I/O range of [ or -] 2V around a floating common point. The input channel and both output channels have separate common points, allowing you to set the ranges for each function independently. You can also choose between a hardwired or programmable common point for the A/D converter.

The A/D converter provides 10 bits of resolution with a conversion time of 2 [unkeyable sec.] The voltage you provide on a reference input pin sets the converter's...

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