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MAX1487 Datasheet(PDF) 2 Page - Maxim Integrated Products |
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MAX1487 Datasheet(HTML) 2 Page - Maxim Integrated Products |
2 / 16 page ±15kV ESD-Protected, Slew-Rate-Limited, Low-Power, RS-485/RS-422 Transceivers 2 _______________________________________________________________________________________ Supply Voltage (VCC) .............................................................12V Control Input Voltage ( – R — E – , DE)...................-0.5V to (VCC + 0.5V) Driver Input Voltage (DI).............................-0.5V to (VCC + 0.5V) Driver Output Voltage (Y, Z; A, B) ..........................-8V to +12.5V Receiver Input Voltage (A, B).................................-8V to +12.5V Receiver Output Voltage (RO)....................-0.5V to (VCC + 0.5V) Continuous Power Dissipation (TA = +70°C) 8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) ....727mW 14-Pin Plastic DIP (derate 10.00mW/°C above +70°C) ..800mW 8-Pin SO (derate 5.88mW/°C above +70°C).................471mW 14-Pin SO (derate 8.33mW/°C above +70°C)...............667mW Operating Temperature Ranges MAX4_ _C_ _/MAX1487EC_ A .............................0°C to +70°C MAX4_ _E_ _/MAX1487EE_ A...........................-40°C to +85°C Storage Temperature Range .............................-65°C to +160°C Lead Temperature (soldering, 10sec) .............................+300°C DC ELECTRICAL CHARACTERISTICS (VCC = 5V ±5%, TA = TMIN to TMAX, unless otherwise noted.) (Notes 1, 2) Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL MIN TYP MAX UNITS Driver Common-Mode Output Voltage VOC 3 V Change in Magnitude of Driver Differential Output Voltage for Complementary Output States ∆VOD 0.2 V Change in Magnitude of Driver Common-Mode Output Voltage for Complementary Output States ∆VOD 0.2 V Input High Voltage VIH 2.0 V Input Low Voltage VIL 0.8 V Input Current IIN1 ±2 µA Differential Driver Output (no load) VOD1 5 V 2 V Differential Driver Output (with load) VOD2 1.5 5 1.0 -0.8 mA 0.25 mA -0.2 Receiver Differential Threshold Voltage -0.2 0.2 V Receiver Input Hysteresis ∆VTH 70 mV Receiver Output High Voltage VOH 3.5 Receiver Output Low Voltage VOL 0.4 V Three-State (high impedance) Output Current at Receiver IOZR ±1 µA 12 k Ω CONDITIONS DE = 0V; VCC = 0V or 5.25V, all devices except MAX487E/MAX1487E R = 27 Ω or 50Ω, Figure 8 R = 27 Ω or 50Ω, Figure 8 R = 27 Ω or 50Ω, Figure 8 DE, DI, – R — E – MAX487E/MAX1487E, DE = 0V, VCC = 0V or 5.25V DE, DI, – R — E – DE, DI, – R — E – -7V ≤ VCM ≤ 12V VCM = 0V IO = -4mA, VID = 200mV IO = 4mA, VID = -200mV R = 50 Ω (RS-422) 0.4V ≤ VO ≤ 2.4V R = 27 Ω (RS-485), Figure 8 -7V ≤ VCM ≤ 12V, all devices except MAX487E/MAX1487E Receiver Input Resistance RIN -7V ≤ VCM ≤ 12V, MAX487E/MAX1487E 48 k Ω VTH IIN2 Input Current (A, B) VIN = 12V VIN = -7V VIN = 12V VIN = -7V V |
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