Texas Instruments TMP1826DGKR

The TMP1826 is a high-accuracy, 1-Wire compatible digital output temperature sensor with integrated 2-kbit EEPROM and a wide operating temperature range from –55°C to 150°C. The TMP1826 provides a high accuracy of ±0.1°C (typical)/±0.3°C (maximum) across the temperature range of –20°C to 85°C. Each device comes with a factory programmed 64-bit unique identification number for addressing and NIST traceability. The TMP1826 supports both standard speed for legacy application and overdrive mode with 90-kbps data rate for low latency communication across a wide voltage range of 1.7 V to 5.5 V.

In the simplest mode of operation, the TMP1826 1-Wire interface, with an integrated 8-kV IEC-61000-4-2 ESD protection on the data pin, requires only a single connection and a ground return in bus powered mode, which simplifies and reduces cost by reducing the number of wires and external protection components. Additionally, there is the V_DD power pin also available for applications that may want to have a dedicated power supply.

The 2-kbit EEPROM on the TMP1826 allows the host to store application data in increments of 64 bits. With user programmable 256-bit page size write protection to avoid accidental overwrite, the EEPROM can be used as non-volatile, read-only memory. The four digital I/O pins are configurable for general purpose functions, temperature alert, or provide host to identify the position of the device on a shared bus.