Datasheet AD7416, AD7417, AD7418 (Analog Devices) - 20
| 制造商 | Analog Devices |
| 描述 | 10-Bit Digital Temperature Sensor (AD7416) and 4-/1-Channel ADCs |
| 页数 / 页 | 23 / 20 — AD7416/AD7417/AD7418. Data Sheet. SYSTEM WITH MULTIPLE AD7416 DEVICES. … |
| 修订版 | J |
| 文件格式/大小 | PDF / 495 Kb |
| 文件语言 | 英语 |
AD7416/AD7417/AD7418. Data Sheet. SYSTEM WITH MULTIPLE AD7416 DEVICES. VDD. 3V TO. 5.5V. 10kΩ. CHI /O. ESSO. R I. 7416 2. A 1
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AD7416/AD7417/AD7418 Data Sheet SYSTEM WITH MULTIPLE AD7416 DEVICES
line. This arrangement means that each device must be read to The three LSBs of the AD7416 serial address can be set by the determine which one has generated the interrupt, and if a user, al owing eight different addresses from 1001000 to unique interrupt is required for each device, the OTI outputs 1001111. Figure 25 shows a system in which eight AD7416 can be connected separately to the I/O chip. devices are connected to a single serial bus, with their OTI outputs wire-AND’ed together to form a common interrupt
VDD 3V TO 5.5V R1 P R 10kΩ CHI /O ESSO R I C E O UP PR S 8 8 8 8 8 8 8 8 7 3 7 3 7 3 7 3 7 3 7 3 7 3 7 3 6 7416 2 6 7416 2 6 7416 2 6 7416 2 6 7416 2 6 7416 2 6 7416 2 6 7416 2 D D D D D D D D 5 A 1 5 A 1 5 A 1 5 A 1 5 A 1 5 A 1 5 A 1 5 A 1 4 4 4 4 4 4 4 4
022 126- 1 0 Figure 25. Multiple Connection of AD7416 Devices to a Single Serial Bus Rev. J | Page 20 of 23 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAMS TABLE OF CONTENTS REVISION HISTORY PRODUCT HIGHLIGHTS SPECIFICATIONS AD7417/AD7418 SPECIFICATIONS AD7416 SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TERMINOLOGY THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER DETAILS TYPICAL CONNECTION DIAGRAM ANALOG INPUTS ON-CHIP REFERENCE TEMPERATURE MEASUREMENT INTERNAL REGISTER STRUCTURE Address Pointer Register Temperature Value Register (Address 0x00) Configuration Register (Address 0x01) THYST Setpoint Register (Address 0x02) TOTI Setpoint Register (Address 0x03) ADC Value Register (Address 0x04) ADC Transfer Function Config2 Register (Address 0x05) SERIAL BUS INTERFACE Serial Bus Address Writing to the AD7416/AD7417/AD7418 Reading Data From the AD7416/AD7417/AD7418 OTI OUTPUT FAULT QUEUE POWER-ON DEFAULTS OPERATING MODES Mode 1 Mode 2 CONVSTB START MODE CONVSTB Pin Mode APPLICATIONS INFORMATION SUPPLY DECOUPLING POWER-ON RESET MOUNTING THE AD7416/AD7417/AD7418 FAN CONTROLLER THERMOSTAT SYSTEM WITH MULTIPLE AD7416 DEVICES OUTLINE DIMENSIONS ORDERING GUIDE
AD7416/AD7417/AD7418 Data Sheet SYSTEM WITH MULTIPLE AD7416 DEVICES
line. This arrangement means that each device must be read to The three LSBs of the AD7416 serial address can be set by the determine which one has generated the interrupt, and if a user, al owing eight different addresses from 1001000 to unique interrupt is required for each device, the OTI outputs 1001111. Figure 25 shows a system in which eight AD7416 can be connected separately to the I/O chip. devices are connected to a single serial bus, with their OTI outputs wire-AND’ed together to form a common interrupt
VDD 3V TO 5.5V R1 P R 10kΩ CHI /O ESSO R I C E O UP PR S 8 8 8 8 8 8 8 8 7 3 7 3 7 3 7 3 7 3 7 3 7 3 7 3 6 7416 2 6 7416 2 6 7416 2 6 7416 2 6 7416 2 6 7416 2 6 7416 2 6 7416 2 D D D D D D D D 5 A 1 5 A 1 5 A 1 5 A 1 5 A 1 5 A 1 5 A 1 5 A 1 4 4 4 4 4 4 4 4
022 126- 1 0 Figure 25. Multiple Connection of AD7416 Devices to a Single Serial Bus Rev. J | Page 20 of 23 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAMS TABLE OF CONTENTS REVISION HISTORY PRODUCT HIGHLIGHTS SPECIFICATIONS AD7417/AD7418 SPECIFICATIONS AD7416 SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TERMINOLOGY THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER DETAILS TYPICAL CONNECTION DIAGRAM ANALOG INPUTS ON-CHIP REFERENCE TEMPERATURE MEASUREMENT INTERNAL REGISTER STRUCTURE Address Pointer Register Temperature Value Register (Address 0x00) Configuration Register (Address 0x01) THYST Setpoint Register (Address 0x02) TOTI Setpoint Register (Address 0x03) ADC Value Register (Address 0x04) ADC Transfer Function Config2 Register (Address 0x05) SERIAL BUS INTERFACE Serial Bus Address Writing to the AD7416/AD7417/AD7418 Reading Data From the AD7416/AD7417/AD7418 OTI OUTPUT FAULT QUEUE POWER-ON DEFAULTS OPERATING MODES Mode 1 Mode 2 CONVSTB START MODE CONVSTB Pin Mode APPLICATIONS INFORMATION SUPPLY DECOUPLING POWER-ON RESET MOUNTING THE AD7416/AD7417/AD7418 FAN CONTROLLER THERMOSTAT SYSTEM WITH MULTIPLE AD7416 DEVICES OUTLINE DIMENSIONS ORDERING GUIDE