The document describes the features and characteristics of the DS75 digital thermometer and thermostat, including no external components required, temperature measurement range from -55°C to +125°C, accuracy of ±2°C, user-configurable resolution from nine bits to 12 bits, etc.
The DS75 is a digital thermometer and thermostat that measures temperatures from -55°C to +125°C with configurable resolution from 9‑bit to 12‑bit, delivering accuracy of ±2°C over a -25°C to +100°C range. Communication is via a 2‑wire (SDA/SCL) serial interface, and three address pins allow up to eight devices on the same bus.
Key features include a wide supply voltage range (2.7 V to 5.5 V), shutdown mode for low‑power operation, programmable thermostat with comparator and interrupt modes, and detailed pin descriptions. The datasheet also lists ordering information, absolute maximum ratings, and timing diagrams for proper integration.
| Accuracy | ±2°C over -25°C to +100°C |
|---|---|
| Resolution | 9‑bit to 12‑bit (0.5°C to 0.0625°C) |
| Supply voltage | 2.7 V to 5.5 V |
| 9‑bit conversion time | 150 ms (max) |
| Maximum devices on bus | 8 devices |
Resolution is set via the RO and R1 bits in the configuration register and can be selected from 9‑bit to 12‑bit.
The device operates with a supply voltage between 2.7 V and 5.5 V.
Up to eight DS75 devices can be connected on the same bus using the three address pins.