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TMP468 Arkusz danych(PDF) 10 Page - Texas Instruments |
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TMP468 Arkusz danych(HTML) 10 Page - Texas Instruments |
10 / 40 page ADC Oscillator Voltage Reference MUX Register Bank Serial Interface Control Logic MUX 16 × I 6 × I I V+ Local Thermal BJT ADD SCL SDA D1+ D2+ D3+ D5+ D4+ D6+ D7+ D8+ GND V+ THERM THERM2 D- Copyright © 2016, Texas Instruments Incorporated 10 TMP468 SBOS762 – NOVEMBER 2016 www.ti.com Product Folder Links: TMP468 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated 8 Detailed Description 8.1 Overview The TMP468 is a digital temperature sensor that combines local temperature measurement channel and eight remote-junction temperature measurement channels in a single DSBGA-16 package. The device has a two-wire- interface that is compatible with I2C or SMBus interfaces and includes four pin-programmable bus address options. The TMP468 is specified over a local device temperature range of –40°C to 125°C. The TMP468 also contains multiple registers for programming and holding configuration settings, temperature limits, and temperature measurement results. The TMP468 pin out includes THERM and THERM2 outputs that signal overtemperature events based on the settings of temperature limit registers. 8.2 Functional Block Diagram 8.3 Feature Description 8.3.1 Temperature Measurement Data The local and remote temperature sensors have a resolution of 13 bits (0.0625°C). Temperature data that result from conversions within the default measurement range are represented in binary form, as shown in the Standard Binary column of Table 1. Negative numbers are represented in two's complement format. The resolution of the temperature registers extends to +255.9375°C and down to –256°C but the actual device is limited to ranges as specified in the Electrical Characteristics to meet the accuracy specifications. The TMP468 is specified for ambient temperatures ranging from –40°C to 125°C; parameters in the Absolute Maximum Ratings table must be observed to prevent damage to the device. |
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