Motor de Búsqueda de Datasheet de Componentes Electrónicos |
|
ADT75ARM Datasheet(PDF) 11 Page - Analog Devices |
|
ADT75ARM Datasheet(HTML) 11 Page - Analog Devices |
11 / 24 page ADT75 Rev. 0 | Page 11 of 24 Configuration register functions consist of • Switching between normal operation and full power-down. • Switching between comparator and interrupt event modes. • Setting the OS/ALERT pin active polarity. • Setting the number of faults that activate the OS/ALERT pin. • Enabling the one-shot mode. • Enabling the SMBus alert function mode on the OS/ALERT pin. TEMPERATURE DATA FORMAT One LSB of the ADC corresponds to 0.0625°C. The ADC can theoretically measure a temperature range of 255°C (−128°C to +127°C ), but the ADT75 is guaranteed to measure a low value temperature limit of −55°C to a high value temperature limit of +125°C. The temperature measurement result is stored in the 16-bit temperature value register and is compared with the high temperature limit stored in the TOS setpoint register and the hysteresis limit in the THYST setpoint register. Temperature data in the temperature value register, the TOS setpoint register and the THYST setpoint register, is represented by a 12-bit twos complement word. The MSB is the temperature sign bit. The four LSBs, Bit DB0 to Bit DB3, are not part of the temperature conversion result and are always 0s. Table 6 shows the temperature data format without Bit DB0 to Bit DB3. Reading back the temperature from the temperature value register requires a 2-byte read unless only a 1°C (8-bit) resolution is required, then a 1-byte read is required. Designers that use a 9-bit temperature data format can still use the ADT75 by ignoring the last three LSBs of the 12-bit temperature value. These three LSBs are Bit D4 to Bit D6 in Table 6. Table 6. 12-Bit Temperature Data Format Temperature Digital Output (Binary) DB15 to DB4 Digital Output (Hex) −55°C 1100 1001 0000 0xC90 −50°C 1100 1110 0000 0xCE0 −25°C 1110 0111 0000 0xE70 −0.0625°C 1111 1111 1111 0xFFF 0°C 0000 0000 0000 0x000 +0.0625°C 0000 0000 0001 0x001 +10°C 0000 1010 0000 0x0A0 +25°C 0001 1001 0000 0x190 +50°C 0011 0010 0000 0x320 +75°C 0100 1011 0000 0x4B0 +100°C 0110 0100 0000 0x640 +125°C 0111 1101 0000 0x7D0 Temperature Conversion Formulas 12-Bit Temperature Data Format • Positive Temperature = ADC Code(d)/16 • Negative Temperature = (ADC Code(d)1− 4096)/16, or Negative Temperature = (ADC Code(d)2 – 2048)/16 9-Bit Temperature Data Format • Positive Temperature = ADC Code(d)/2 • Negative Temperature = (ADC Code(d)3 – 512)/2, or Negative Temperature = (ADC Code(d)4 – 256)/2 8-Bit Temperature Data Format • Positive Temperature = ADC Code(d) • Negative Temperature = ADC Code(d)5 – 256, or Negative Temperature = ADC Code(d)6 – 128 Bit DB7 (sign bit) is removed from the ADC code. 1 For ADC code, use all 12 bits of the data byte, including the sign bit. 2 For ADC code, Bit DB11 (sign bit) is removed from the ADC code. 3 For ADC code, use all 9 bits of the data byte, including the sign bit. 4 Bit DB8 (sign bit) is removed from the ADC code. 5 For the ADC code, use all 8 bits of the data byte, including the sign bit. 6 Bit DB7 (sign bit) is removed from the ADC code. |
Número de pieza similar - ADT75ARM |
|
Descripción similar - ADT75ARM |
|
|
Enlace URL |
Política de Privacidad |
ALLDATASHEET.ES |
¿ALLDATASHEET es útil para Ud.? [ DONATE ] |
Todo acerca de Alldatasheet | Publicidad | Contáctenos | Política de Privacidad | Intercambio de Enlaces | Lista de Fabricantes All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |