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AD9446 Arkusz danych(PDF) 9 Page - Analog Devices |
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AD9446 Arkusz danych(HTML) 9 Page - Analog Devices |
9 / 37 page AD9446 Rev. 0 | Page 8 of 36 ABSOLUTE MAXIMUM RATINGS Table 5. Parameter With Respect to Rating ELECTRICAL AVDD1 AGND −0.3 V to +4 V AVDD2 AGND −0.3 V to +6 V DRVDD DGND −0.3 V to +4 V AGND DGND −0.3 V to +0.3 V AVDD1 DRVDD −4 V to +4 V AVDD2 DRVDD −4 V to +6 V AVDD2 AVDD1 −4 V to +6 V D0± to D15± DGND –0.3 V to DRVDD + 0.3 V CLK+/CLK− AGND –0.3 V to AVDD1 + 0.3 V OUTPUT MODE, DCS MODE, DFS AGND –0.3 V to AVDD1 + 0.3 V VIN+, VIN− AGND –0.3 V to AVDD2 + 0.3 V VREF AGND –0.3 V to AVDD1 + 0.3 V SENSE AGND –0.3 V to AVDD1 + 0.3 V REFT, REFB AGND –0.3 V to AVDD1 + 0.3 V ENVIRONMENTAL Storage Temperature Range –65°C to +125°C Operating Temperature Range –40°C to +85°C Lead Temperature (Soldering 10 sec) 300°C Junction Temperature 150°C Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. THERMAL RESISTANCE The heat sink of the AD9446 package must be soldered to ground. Table 6. Package Type θJA θJB θJC Unit 100-lead TQFP/EP 19.8 8.3 2 °C/W Typical θJA = 19.8°C/W (heat sink soldered) for multilayer board in still air. Typical θJB = 8.3°C/W (heat sink soldered) for multilayer board in still air. Typical θJC = 2°C/W (junction to exposed heat sink) represents the thermal resistance through heat sink path. Airflow increases heat dissipation, effectively reducing θJA. Also, more metal directly in contact with the package leads from metal traces through holes, ground, and power planes reduces the θJA. It is required that the exposed heat sink be soldered to the ground plane. 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. |
Podobny numer części - AD9446_17 |
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Podobny opis - AD9446_17 |
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