DS1631+

The DS1631+ is a high precision digital thermometer and thermostat in 8 pin DIP package. This device measures temperature using bandgap based temperature sensors. The digital thermometer provides 9, 10, 11 or 12bit temperature readings over a -55°C to +125°C temperature range. The DS1631 thermometer accuracy is ±0.5°C from 0°C to +70°C with 3V ≤ VDD ≤ 5.5V. The thermostat on the device provides custom hysteresis with user defined trip points (TH and TL). The TH and TL registers and thermometer configuration settings are stored in NV EEPROM so they can be programmed prior to installation. The DS1631 is used in network routers and switches, cellular base stations and any space constrained thermally sensitive products.

• Supply voltage range from 2.7V to 5.5V
• Maximize system accuracy in broad range of thermal management applications
• User selectable output resolution from 9bit to 12bit
• Reduces cost with no external components
• Simplify distributed temperature sensing applications with multidrop capability
• Up to eight devices can operate on 2-wire bus
• Flexible and non-volatile user defined thermostatic modes with custom hysteresis
• Thermometer error of ±2°C at -55°C to +125°C
• Standby supply current of 800nA at 0°C to +70°C

Applications

Sensing & Instrumentation, Portable Devices, Medical

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party