Product details

Local sensor accuracy (max) 0.3 Type Local Operating temperature range (°C) -40 to 125 Supply voltage (min) (V) 1.7 Interface type 1-wire Supply voltage (max) (V) 5.5 Features 64-bit unique ID, NIST traceable Supply current (max) (µA) 100 Temp resolution (max) (Bits) 12 Addresses 256 Rating Catalog
Local sensor accuracy (max) 0.3 Type Local Operating temperature range (°C) -40 to 125 Supply voltage (min) (V) 1.7 Interface type 1-wire Supply voltage (max) (V) 5.5 Features 64-bit unique ID, NIST traceable Supply current (max) (µA) 100 Temp resolution (max) (Bits) 12 Addresses 256 Rating Catalog
TO-92 (LPG) 3 6.08 mm² 4 x 1.52
  • 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: V DD (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
  • 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: V DD (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

The TMP1820 is 1-Wire, high-accuracy, digital-output 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 64-bit unique identification number used for addressing and allows NIST traceability. The 1-Wire® interface supports both a standard communication mode for legacy applications and an overdrive mode (with up to 90 kbps data rate) for faster communication present in modern applications. Overdrive mode also allows the user to lower the bus power to as low as 1.7V over the entire temperature range.

For the simplest mode of operation, the TMP1820 1-Wire® interface only requires a single connection and a ground return for bus-powered mode. The combination of unique ID and bus-powered operation can lead to cabling simplifications, which can reduce solution complexity and cost. In applications that require the absolute lowest power consumption, a VDD power pin also available if a dedicated power supply is available. Additionally, the low-noise and precision of the TMP1820 can reduce the power consumption of one-sample applications.

The TMP1820 is 1-Wire, high-accuracy, digital-output 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 64-bit unique identification number used for addressing and allows NIST traceability. The 1-Wire® interface supports both a standard communication mode for legacy applications and an overdrive mode (with up to 90 kbps data rate) for faster communication present in modern applications. Overdrive mode also allows the user to lower the bus power to as low as 1.7V over the entire temperature range.

For the simplest mode of operation, the TMP1820 1-Wire® interface only requires a single connection and a ground return for bus-powered mode. The combination of unique ID and bus-powered operation can lead to cabling simplifications, which can reduce solution complexity and cost. In applications that require the absolute lowest power consumption, a VDD power pin also available if a dedicated power supply is available. Additionally, the low-noise and precision of the TMP1820 can reduce the power consumption of one-sample applications.

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* Data sheet TMP1820 1-Wire®, 1.7-V to 5.5-V Bus Powered Supply, ±0.3°C Accurate Digital Temperature Sensor datasheet PDF | HTML 15 Sep 2023
EVM User's guide TMP1820 Evaluation Module User's Guide PDF | HTML 18 Aug 2023

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Evaluation board

TMP1827EVM — TMP1827 evaluation module for single-wire digital temperature sensor

The TMP1827 is a high-accuracy single-wire compatible digital-output temperature sensor with integrated secure hash algorithm (SHA) 256-bit with hash message authentication code (HMAC) and 2-Kbit EEPROM. The TMP1827 provides a high-accuracy of ±0.3°C across the temperature range of -55°C to 150°C.

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User guide: PDF | HTML
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