Texas Instruments TMP1820
The TMP1820 is 1-Wire®, high-accuracy, digitaloutput temperature sensor. The accuracy is as high as ±0.1°C across the –20°C to +85°C or ±0.4°C across the –55°C to +125°C temperature range. Each device incorporates a factory-programmed 64bit unique identification number used for addressing and allows NIST traceability.FEATURES
● Multi-drop shared bus for data communication features – 1-Wire interface – Standard and overdrive data rates modes (up to 90 kbps) – Legacy and short addressing – Cyclic redundancy check (CRC)● Flexible power supply option: VDD (supply) powered or bus powered – 1.7 V to 5.5 V (OVD mode or bus powered) – 2.5 V to 5.5V (STD mode)
● High accuracy temperature sensor: – ±0.1°C (typical) from –20°C to +85°C – ±0.3°C (maximum) from –20°C to +85°C – ±0.4°C (maximum) from –55°C to +125°C
● 12-bit temperature resolution: 62.5 m°C (1 LSB)
● Low power – Active current: 85 µA (typical) – Shutdown current: 1.6 µA (typical) – Average current: 3.85 µA at 1Hz duty cycle – Fast conversion time: 27 ms (maximum)
● Safety and compliance – NIST traceable – Factory programmed non erasable 64-bit identification number for device addressing – IEC 61000-4-2 ESD: 8kV contact discharge 2
APPLICATIONS
● Factory Automation and control – Temperature Transmitter – PLC, DCS & PAC● Medical – CPAP machine –...