Designing a 4-20mA Current Loop Using the MAX1459 Sensor Signal Conditioner Current-mode data transmission is the preferred technique in many environments, particularly in industrial applications. This application note describes the design of a 4-20mA current loop using the MAX1459 sensor signal conditioner (26-Sep-2006)---818
RS232 Expander Simple hardware expands PC\'s COM port from COM1 to COM1/1 and COM1/2. No active parts.
(16-Sep-2005)---533