DS18B20+ by Analog Devices is a 12-bit temperature sensor with 3.3/5V supply, -55 to 125°C range, and ±0.50°C accuracy. It features a 1-Wire interface for digital output and is commonly used in applications requiring precise temperature monitoring in various industries.
ULN2803ADWR by Texas Instruments is a peripheral driver with 8 functions, open-collector output characteristics, and built-in transient protections. It operates b/w -40 to 85°C, has a max supply voltage of 3V, and is ideal for buffer or inverter-based applications requiring sink current flow direction.