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ADM485JN Arkusz danych(PDF) 3 Page - Analog Devices |
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ADM485JN Arkusz danych(HTML) 3 Page - Analog Devices |
3 / 8 page ADM485 REV. A –3– ABSOLUTE MAXIMUM RATINGS* (TA = +25 °C unless otherwise noted) VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7 V Inputs Driver Input (DI) . . . . . . . . . . . . . . . . –0.3 V to VCC + 0.3 V Control Inputs (DE, RE) . . . . . . . . . . –0.3 V to VCC + 0.3 V Receiver Inputs (A, B) . . . . . . . . . . . . . . . . . –14 V to +14 V Outputs Driver Outputs . . . . . . . . . . . . . . . . . . . . . . . –14 V to +14 V Receiver Output . . . . . . . . . . . . . . . . . –0.5 V to VCC +0.5 V Power Dissipation 8-Pin DIP . . . . . . . . . . . . . . . . . . . 500 mW θJA, Thermal Impedance . . . . . . . . . . . . . . . . . . +130°C/W Power Dissipation 8-Pin SOIC . . . . . . . . . . . . . . . . . 450 mW θ JA, Thermal Impedance . . . . . . . . . . . . . . . . . . +170 °C/W Power Dissipation 8-Pin Cerdip . . . . . . . . . . . . . . . . 500 mW θJA, Thermal Impedance . . . . . . . . . . . . . . . . . . +125°C/W Operating Temperature Range Commercial (J Version) . . . . . . . . . . . . . . . . . 0 °C to +70°C Industrial (A Version) . . . . . . . . . . . . . . . . –40 °C to +85°C Storage Temperature Range . . . . . . . . . . . –65 °C to +150°C Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . +300 °C Vapour Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . +215 °C Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . +220 °C *Stresses above those listed under Absolute Maximum Ratings may cause perma- nent 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 sections of this specification is not implied. Exposure to absolute maximum ratings for extended periods may affect device reliability. Table I. Transmitting INPUTS OUTPUT RE DE DI B A X 1101 X 1010 X0 X Z Z Table II. Receiving INPUTS OUTPUT RE DE A-B RO 00 ≥ +0.2 V 1 00 ≤ –0.2 V 0 0 0 Inputs Open 1 10 X Z PIN FUNCTION DESCRIPTION Pin Mnemonic Function 1 RO Receiver Output. When enabled if A > B by 200 mV, then RO = High. If A < B by 200 mV, then RO = Low. 2 RE Receiver Output Enable. A low level enables the receiver output, RO. A high level places it in a high impedance state. 3 DE Driver Output Enable. A high level enables the driver differential outputs, A and B. A low level places it in a high impedance state. 4 DI Driver Input. When the driver is enabled a logic Low on DI forces A low and B high while a logic High on DI forces A high and B low. 5 GND Ground Connection, 0 V. 6 A Noninverting Receiver Input A/Driver Output A. 7 B Inverting Receiver Input B/Driver Output B. 8VCC Power Supply, 5 V ± 5%. PIN CONFIGURATION RO RE DE DI GND A B V CC 1 2 3 4 8 7 6 5 TOP VIEW (Not to Scale) ADM485 ORDERING GUIDE Model Temperature Range Package Option ADM485JN 0 °C to +70°C N-8 ADM485JR 0 °C to +70°C SO-8 ADM485AN –40 °C to +85°C N-8 ADM485AR –40 °C to +85°C SO-8 ADM485AQ –40 °C to +85°C Q-8 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 ADM485 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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