DS75U+

DS75U+ is a digital thermometer and thermostat. At power-up, the DS75 defaults to 9-bit resolution for software compatibility with the LM75. Communication with the DS75 is achieved via a simple 2–wire serial interface. Three address pins allow up to eight DS75 devices to operate on the same 2-wire bus, which greatly simplifies distributed temperature sensing applications. The DS75 thermostat has a dedicated open–drain output (O.S.) and programmable fault tolerance, which allows the user to define the number of consecutive error conditions that must occur before O.S is activated. There are two thermostatic operating modes that control thermostat operation based on user-defined trip points (TOS and THYST). Applications include personal computers, cellular base stations, office equipment, or any thermally sensitive system.

• Temperature measurements require no external components
• Measures temperatures from -55°C to +125°C
• Thermostatic settings are user-definable
• Data is read/written via 2-wire serial (interface (SDA and SCL pins))
• Multidrop capability simplifies distributed temperature-sensing applications
• Wide power-supply range (+2.7V to +5.5V)
• Pin/software compatible with the LM75
• Thermometer error is ±2.0°C max at -25 to +100°C
• Resolution is 12bits max at -55°C to +125°C; 2.7V ≤ VDD ≤ 5.5V
• 8-pin µMAX package