ADM1485 Analog Devices, ADM1485 Datasheet
ADM1485
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ADM1485 Summary of contents
Page 1
... transceivers may be connected simultaneously on a bus, but only one driver should be enabled at any time important therefore that the remaining disabled drivers do not load the bus. To ensure this, the ADM1485 driver features high output impedance when disabled and also when powered down Low Power ...
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... ADM1485–SPECIFICATIONS Parameter DRIVER Differential Output Voltage OD3 ∆|V | for Complementary Output States OD Common-Mode Output Voltage V OC ∆|V | for Complementary Output States OD Output Short Circuit Current (V OUT Output Short Circuit Current (V OUT CMOS Input Logic Threshold Low, V CMOS Input Logic Threshold High, V ...
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... 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 ADM1485 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 ...
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... ADM1485 Test Circuits OD3 A R LDIFF B Switching Characteristics 3V 1. PLH B 1/2VO SKEW VO 90% POINT 0V 10% POINT – 375 V TST 375 1. PHL T RO SKEW 90% POINT 10% POINT ...
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... TEMPERATURE – C 100 OUTPUT VOLTAGE – Volts Typical Performance Characteristics–ADM1485 0 –2 –4 –6 –8 –10 –12 –14 –16 –18 –20 3.5 4.0 4.5 5.0 OUTPUT VOLTAGE – Volts ...
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... ADM1485–Typical Performance Characteristics –50 – 100 125 TEMPERATURE – C 100 500mV 500mV 5ns D R 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0 –50 – 100 TEMPERATURE – C 100 10ns 100 125 100 90 10 ...
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... The ADM1485 is designed for bidirectional data communica- tions on multipoint transmission lines. A typical application Table III. Comparison of RS-422 and RS-485 Interface Standards ...
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... ADM1485 0.0098 (0.25) 0.0040 (0.10) OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 8-Lead SOIC (SO-8) 0.1968 (5.00) 0.1890 (4.80 0.2440 (6.20) 0.1574 (4.00) 0.2284 (5.80) 0.1497 (3.80 PIN 1 0.0500 (1.27) BSC 0.0688 (1.75) 0.0532 (1.35) 8 0.0192 (0.49) 0 0.0098 (0.25) SEATING 0.0138 (0.35) PLANE 0.0075 (0.19) 8-Lead Plastic DIP (N-8) 0.430 (10.92) 0.348 (8.84 0.280 (7.11) 0.240 (6.10 0.325 (8.25) PIN 1 ...