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TMP102AIDRLTG4 Datasheet(PDF) 7 Page - Texas Instruments |
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TMP102AIDRLTG4 Datasheet(HTML) 7 Page - Texas Instruments |
7 / 22 page TMP102 www.ti.com SBOS397C – AUGUST 2007 – REVISED OCTOBER 2012 Table 6. 13-Bit Temperature Data Format TEMPERATURE (°C) DIGITAL OUTPUT (BINARY) HEX 150 0 1001 0110 0000 0960 128 0 1000 0000 0000 0800 127.9375 0 0111 1111 1111 07FF 100 0 0110 0100 0000 0640 80 0 0101 0000 0000 0500 75 0 0100 1011 0000 04B0 50 0 0011 0010 0000 0320 25 0 0001 1001 0000 0190 0.25 0 0000 0000 0100 0004 0 0 0000 0000 0000 0000 –0.25 1 1111 1111 1100 1FFC –25 1 1110 0111 0000 1E70 –55 1 1100 1001 0000 1C90 CONFIGURATION REGISTER ALERT (AL Bit) The Configuration Register is a 16-bit read/write The AL bit is a read-only function. Reading the AL bit register used to store bits that control the operational will provide information about the comparator mode modes of the temperature sensor. Read/write status. The state of the POL bit inverts the polarity of operations are performed MSB first. The format and data returned from the AL bit. For POL = 0, the AL bit power-up/reset value of the Configuration Register is will read as '1' until the temperature equals or shown in Table 7. For compatibility, the first byte exceeds THIGH for the programmed number of corresponds to the Configuration Register in the consecutive faults, causing the AL bit to read as '0'. TMP75 and TMP275. All registers are updated byte The AL bit will continue to read as '0' until the by byte. temperature falls below TLOW for the programmed number of consecutive faults, when it will again read Table 7. Configuration and Power-Up/Reset as '1'. The status of the TM bit does not affect the Format status of the AL bit. BYTE D7 D6 D5 D4 D3 D2 D1 D0 CONVERSION RATE OS R1 R0 F1 F0 POL TM SD 1 The conversion rate bits, CR1 and CR0, configure the 0 1 1 0 0 0 0 0 TMP102 for conversion rates of 8Hz, 4Hz, 1Hz, or CR1 CR0 AL EM 0 0 0 0 2 0.25Hz. The default rate is 4Hz. The TMP102 has a 1 0 1 0 0 0 0 0 typical conversion time of 26ms. To achieve different conversion rates, the TMP102 makes a conversion EXTENDED MODE (EM) and after that powers down and waits for the appropriate delay set by CR1 and CR0. Table 8 The Extended mode bit configures the device for shows the settings for CR1 and CR0. Normal mode operation (EM = 0) or Extended mode operation (EM = 1). In Normal mode, the Table 8. Conversion Rate Settings Temperature Register and high- and low-limit CR1 CR0 CONVERSION RATE registers use a 12-bit data format. Normal mode is used to make the TMP102 compatible with the 0 0 0.25Hz TMP75. 0 1 1Hz Extended mode (EM = 1) allows measurement of 1 0 4Hz (default) temperatures above +128°C by configuring the 1 1 8Hz Temperature Register, and high- and low-limit registers, for 13-bit data format. Copyright © 2007–2012, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Links: TMP102 |
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