Direct to Digital Sensors

RTD Sensors
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Thermometrics is now manufacturing Direct-to-Digital Temperature Sensors.

These units provide a 9-bit Digital Output over the Temperature Range -55 to +125C (-67 to +257F) in increments of 0.5C (0.9F). These sensors can be configured in most packages suitable for RTD's with diameters of .250" and larger.

1 Wire, 2 Wire, 3 Wire and SPI buses are available.

Each unit contains a unique serial number integral to the silicon chip so that multiple units can be wired onto a single 1-wire bus, and each is recognized by its own serial number. This feature suggests applications in HVAC and other areas where multiple temperatures need to be economically monitored by a central station.

Interface materials (both hardware and software) are available to provide readout and alarm functions right through the serial port on your PC.

Specifications are as follows:

- Direct-to-Digital Output.

- Accuracy +/-0.5C from -10 to +85C with 9-bit resolution.

- Temperature Range: -55 to +125C.

- Power Supply Range: 3.0 to 5.5 VDC.


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