DS1721S+T&R

The DS1721S+T&R is a 2 wire digital thermometer and thermostat in 8 pin NSOIC package. The 12 bit temperature readings which indicate the temperature of the device. Thermostatic settings and temperature readings are all communicated to/from the DS1721 over a simple 2 wire serial interface. No additional components are required, the device is truly a “temperature to digital” converter. The DS1721 has three address bits that allow a user to multidrop up to eight sensors along the 2 wire bus, greatly simplifying the bussing of distributed temperature sensing networks. The thermal alarm output, TOUT, is active when the temperature of the device exceeds a user-defined temperature TH. The output remains active until the temperature is equal to or below the user-defined temperature TL and allows for any hysteresis necessary. The active state of TOUT is configurable by the user.

• Supply voltage range is 2.7V to 5.5V
• Measures temperatures from -55°C to +125°C and fahrenheit equivalent is -67°F to +257°F
• Temperature resolution is configurable from 9 to 12 (default) bits (0.5°C to 0.0625°C resolution)
• Maximum conversion time (9bit resolution) of 93.75ms

Applications

Sensing & Instrumentation, Industrial, Consumer Electronics

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