Datasheet AD7787 (Analog Devices) - 8
| 制造商 | Analog Devices |
| 描述 | Low Power, 2-Channel 24-Bit Sigma-Delta ADC |
| 页数 / 页 | 21 / 8 — Data Sheet. AD7787. ABSOLUTE MAXIMUM RATINGS. Table 3. Parameter. Rating. … |
| 修订版 | A |
| 文件格式/大小 | PDF / 364 Kb |
| 文件语言 | 英语 |
Data Sheet. AD7787. ABSOLUTE MAXIMUM RATINGS. Table 3. Parameter. Rating. ESD CAUTION
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Data Sheet AD7787 ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted.
Table 3. Parameter Rating
VDD to GND −0.3 V to +7 V Stresses above those listed under Absolute Maximum Ratings Analog Input Voltage to GND −0.3 V to VDD + 0.3 V may cause permanent damage to the device. This is a stress Reference Input Voltage to GND −0.3 V to VDD + 0.3 V rating only; functional operation of the device at these or any Total AIN/REFIN Current (Indefinite) 30 mA other conditions above those listed in the operational sections Digital Input Voltage to GND −0.3 V to VDD + 0.3 V of this specification is not implied. Exposure to absolute Digital Output Voltage to GND −0.3 V to VDD + 0.3 V maximum rating conditions for extended periods may affect Operating Temperature Range −40°C to +105°C device reliability. Storage Temperature Range −65°C to +150°C Maximum Junction Temperature 150°C MSOP θJA Thermal Impedance 206°C/W θJC Thermal Impedance 44°C/W Lead Temperature, Soldering (10 sec) 300°C IR Reflow, Peak Temperature 220°C
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although this product features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. Rev. A | Page 7 of 20 Document Outline Specifications Timing Characteristics Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics On-Chip Registers Communications Register (RS1, RS0 = 0, 0) Status Register (RS1, RS0 = 0, 0; Power-On/Reset = 0×8C) Mode Register (RS1, RS0 = 0, 1; Power-On/Reset = 0×02) Filter Register (RS1, RS0 = 1, 0; Power-On/Reset = 0×04) Data Register (RS1, RS0 = 1, 1; Power-On/Reset = 0×000000) ADC Circuit Information Overview Noise Performance Reduced Current Modes Digital Interface Single Conversion Mode Continuous Conversion Mode Continuous Read Mode Circuit Description Analog Input Channel Bipolar/Unipolar Configuration Data Output Coding Reference Input VDD Monitor Grounding and Layout Applications Battery Monitoring Outline Dimensions Ordering Guide
TA = 25°C, unless otherwise noted.
Table 3. Parameter Rating
VDD to GND −0.3 V to +7 V Stresses above those listed under Absolute Maximum Ratings Analog Input Voltage to GND −0.3 V to VDD + 0.3 V may cause permanent damage to the device. This is a stress Reference Input Voltage to GND −0.3 V to VDD + 0.3 V rating only; functional operation of the device at these or any Total AIN/REFIN Current (Indefinite) 30 mA other conditions above those listed in the operational sections Digital Input Voltage to GND −0.3 V to VDD + 0.3 V of this specification is not implied. Exposure to absolute Digital Output Voltage to GND −0.3 V to VDD + 0.3 V maximum rating conditions for extended periods may affect Operating Temperature Range −40°C to +105°C device reliability. Storage Temperature Range −65°C to +150°C Maximum Junction Temperature 150°C MSOP θJA Thermal Impedance 206°C/W θJC Thermal Impedance 44°C/W Lead Temperature, Soldering (10 sec) 300°C IR Reflow, Peak Temperature 220°C
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although this product features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. Rev. A | Page 7 of 20 Document Outline Specifications Timing Characteristics Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics On-Chip Registers Communications Register (RS1, RS0 = 0, 0) Status Register (RS1, RS0 = 0, 0; Power-On/Reset = 0×8C) Mode Register (RS1, RS0 = 0, 1; Power-On/Reset = 0×02) Filter Register (RS1, RS0 = 1, 0; Power-On/Reset = 0×04) Data Register (RS1, RS0 = 1, 1; Power-On/Reset = 0×000000) ADC Circuit Information Overview Noise Performance Reduced Current Modes Digital Interface Single Conversion Mode Continuous Conversion Mode Continuous Read Mode Circuit Description Analog Input Channel Bipolar/Unipolar Configuration Data Output Coding Reference Input VDD Monitor Grounding and Layout Applications Battery Monitoring Outline Dimensions Ordering Guide