DS2482S-100+T&R

The DS2482S-100+T&R is an I2C to 1-Wire bridge device designed by Analog Devices. It enables seamless communication between standard (100kHz max) or fast (400kHz max) I2C masters and downstream 1-Wire slave devices, acting as a 1-Wire master itself.

This IC features internal, factory-trimmed timers that manage time-critical 1-Wire waveforms, supporting both standard and overdrive communication speeds. It includes slew-rate control for optimized 1-Wire signal edges and programmable features to adapt to various 1-Wire slave environments. The device supports selectable active or passive 1-Wire pullup and provides an output to control an external MOSFET for enhanced strong pullup capabilities, crucial for devices like EEPROMs and sensors that have momentary high source current modes.

With an operating voltage range of 2.9V to 5.5V and an operating temperature range of -40°C to +85°C, the DS2482S-100+T&R is suitable for industrial and consumer applications. It is available in an 8-pin SOIC package, simplifying integration into various designs. The I2C slave address is configurable via two binary address inputs, preventing conflicts in systems with multiple I2C devices.

Applications include printers, medical instruments, industrial sensors, and mobile devices like cell phones and PDAs. The DS2482S-100+T&R minimizes line noise, reducing system EMI, and offers flexible 1-Wire IO sequences including Reset/Presence, 8-Bit, Single-Bit, and 3-Bit operations.