The 1S14, 1S24, 1S44, and 1S64, and the 1S74, (known generically 1Sn4's) are a pin-compatible family of hybrid-circuit resolver-to-digital converters (RDCs), in 40-pin packages, designed for applications that call for both accurate digital position information and an output voltage accurately proportional to shaft velocity, in data acquisition employing Inductosyns™ and resolvers. Read full article