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AD7008PCB Arkusz danych(PDF) 4 Page - Analog Devices |
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AD7008PCB Arkusz danych(HTML) 4 Page - Analog Devices |
4 / 16 page REV. B –4– AD7008 ABSOLUTE MAXIMUM RATINGS* (TA = +25°C unless otherwise noted) VAA, VDD to GND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V AGND to DGND . . . . . . . . . . . . . . . . . . . . . –0.3 V to +0.3 V Digital I/O Voltage to DGND . . . . . . . . –0.3 V to VDD + 0.3 V Analog I/O Voltage to AGND . . . . . . . . –0.3 V to VDD + 0.3 V Operating Temperature Range Industrial (A Version) . . . . . . . . . . . . . . . . . –40 °C to +85°C Commercial (J Version) . . . . . . . . . . . . . . . . . . 0 °C to +70°C Storage Temperature Range . . . . . . . . . . . . . –65 °C to +150°C Lead Temperature (Soldering, 10 secs) . . . . . . . . . . . . +300 °C Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . +115 °C PLCC θ JA Thermal Impedance . . . . . . . . . . . . . . . +53.8 °C/W θ JC Thermal Impedance . . . . . . . . . . . . . . . +24.1 °C/W *Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those listed in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ORDERING GUIDE Temperature Package Package Model Range Description Option AD7008AP20 –40 °C to +85°C 44-Pin PLCC P-44A AD7008JP50 0 °C to +70°C 44-Pin PLCC P-44A AD7008/PCB* 1–3.5" Disk *AD7008/PCB DDS Evaluation Kit, assembled and tested. Kit includes an AD7008JP50. PIN CONFIGURATION PLCC PIN NO. 1 IDENTIFIER 6 40 18 28 7 39 17 29 AD7008 PLCC TOP VIEW (NOT TO SCALE) VDD RESET SLEEP LOAD TC3 TC2 TC1 TC0 FSELECT CLOCK DGND DGND D8 D9 D10 D11 D12 D13 D14 D15 VDD WR MSB LSB A WORD D15–D0 ← A WORD* B WORD D15–D0 ← B WORD A WORD 32-BIT PARALLEL ASSEMBLY REGISTER *MOST SIGNIFICANT WORD IS LOADED FIRST Figure 5. 16-Bit Parallel Port Loading Sequence A BYTE A BYTE A BYTE A BYTE B BYTE B BYTE B BYTE C BYTE C BYTE D BYTE D7–D0 ← A BYTE* D7–D0 ← B BYTE D7–D0 ← C BYTE D7–D0 ← D BYTE MSB LSB 32-BIT PARALLEL ASSEMBLY REGISTER *MOST SIGNIFICANT BYTE IS LOADED FIRST Figure 6. 8-Bit Parallel Port Loading Sequence 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 the AD7008 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. WARNING! ESD SENSITIVE DEVICE |
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