MAX3486E Maxim Integrated Products, MAX3486E Datasheet
MAX3486E
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MAX3486E Summary of contents
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... EMI and reduce reflections caused by improperly termi- nated cables, allowing error-free data transmission at data rates up to 250kbps. The partially slew-rate-limited MAX3486E transmits up to 2.5Mbps. The MAX3485E, MAX3490E, and MAX3491E transmit 12Mbps. All devices feature enhanced electrostatic discharge (ESD) protection. All transmitter outputs and receiver inputs are protected to ± ...
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ESD-Protected, 12Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers ABSOLUTE MAXIMUM RATINGS Supply Voltage (V ).............................................................+7V CC Control Input Voltage (RE, DE).................................-0.3V to +7V Driver Input Voltage (DI)...........................................-0.3V to +7V Driver Output Voltage ( .......................-7.5V to +12.5V ...
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... Driver-Output Enable Time to Low Level Driver-Output Enable Time to High Level Driver-Output Disable Time from High Level Driver-Output Disable Time from Low Level Driver-Output Enable Time from Shutdown to Low Level Driver-Output Enable Time from Shutdown to High Level DRIVER SWITCHING CHARACTERISTICS—MAX3486E (V = +3.3V +25°C ...
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... Figure 9 PZH 110Ω, Figure 9 PHZ 110Ω, Figure 10 PLZ 110Ω, Figure 10 PSL 110Ω, Figure 9 PSH L CONDITIONS MAX3483E/MAX3485E/MAX3486E/MAX3491E only (Note 3.0V 15pF, Figure MAX3483E/MAX3488E 3.0V 15pF, Figure MAX3483E/MAX3488E 3.0V 15pF, Figure MAX3483E/MAX3488E C = 15pF, Figure 12, L MAX3483E/85E/86E/91E only ...
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ESD-Protected, 12Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers (V = +3.3V +25°C, unless otherwise noted OUTPUT CURRENT vs. RECEIVER OUTPUT LOW VOLTAGE 0.5 1.0 1.5 2.0 2.5 3.0 ...
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... ESD-Protected, 12Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers (V = +3.3V +25°C, unless otherwise noted SUPPLY CURRENT vs. TEMPERATURE 1 DON’T CARE 1 1 0.9 0.8 0.7 -40 - TEMPERATURE (°C) PIN MAX3483E MAX3488E MAX3485E MAX3491E MAX3490E MAX3486E — — — — — — — — ...
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... ESD-Protected, 12Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers TOP VIEW GND SO/DIP Figure 1. MAX3483E/MAX3485E/MAX3486E Pin Configuration and Typical Operating Circuit TOP VIEW GND SO/DIP Figure 2. MAX3488E/MAX3490E Pin Configuration and Typical Operating Circuit TOP VIEW N. GND GND 7 8 N.C. SO/DIP Figure 3. MAX3491E Pin Configuration and Typical Operating Circuit ...
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ESD-Protected, 12Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers Figure 4. Driver V and (+) Figure 6. Receiver V and ...
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ESD-Protected, 12Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers S1 D GENERATOR (NOTE Figure 8. Driver Propagation Times 50pF L (NOTE ...
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ESD-Protected, 12Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers GENERATOR (NOTE 4) 50 1.5V 0 Figure 11. Receiver Propagation Delay S3 1.5V -1.5V V GENERATOR (NOTE 4) IN 1.5V t PRZH t PRSH OUT 1.5V IN 1.5V ...
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... Information The MAX3483E/MAX3485E/MAX3486E/MAX3488E/ MAX3490E/MAX3491E are low-power transceivers for RS-485 and RS-422 communications. The MAX3483E and MAX3488E can transmit and receive at data rates up to 250kbps, the MAX3486E 2.5Mbps, and the MAX3485E/MAX3490E/MAX3491E 12Mbps. The MODE MAX3488E/MAX3490E/MAX3491E are full-duplex trans- A* ceivers, while the MAX3483E/MAX3485E/MAX3486E are ...
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ESD-Protected, 12Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers DI 2V/div Z 1V/div Y 1V/div 20ns/div Figure 15. MAX3485E/MAX3490E/MAX3491E Driver Propagation Delay DI 2V/div Z 1V/div Y 1V/div 1 s/div Figure 17. MAX3483E/MAX3488E Driver Propagation Delay DI 5V/div V - ...
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... PRLH (20ns for the MAX3483E/MAX3488E). The driver skew times are 8ns for the MAX3485E/MAX3490E/MAX3491E, 12ns for the MAX3486E, and typically under 50ns for the MAX3483E/MAX3488E. Line Length vs. Data Rate The RS-485/RS-422 standard covers line lengths up to 4000 feet. For line lengths greater than 4000 feet, see Figure 21 for an example of a line repeater ...
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... To minimize reflections, the line should be terminated at both ends in its characteristic impedance, and stub lengths off the main line should be kept as short as possible. The slew-rate-limited MAX3483E/MAX3488E and the partially slew-rate-limited MAX3486E are more tolerant of imperfect termination. PEAK-TO-PEAK RINGING I r (NOT DRAWN TO SCALE) ...
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... ESD-Protected, 12Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers 120 MAX3483E MAX3485E MAX3486E Figure 24. MAX3483E/MAX3485E/MAX3486E Typical RS-485 Network A 120 120 NOTE: RE AND DE ON MAX3491E ONLY. Figure 25. MAX3488E/MAX3490E/MAX3491E Full-Duplex RS-485 Network ______________________________________________________________________________________ 120 120 120 MAX3488E MAX3490E MAX3491E ...
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... Slew-Rate-Limited True RS-485/RS-422 Transceivers Ordering Information (continued) PART TEMP. RANGE MAX3486ECSA 0°C to +70°C MAX3486ECPA 0°C to +70°C MAX3486EESA -40°C to +85°C MAX3486EEPA -40°C to +85°C MAX3488ECSA 0°C to +70°C MAX3488ECPA 0°C to +70°C MAX3488EESA -40°C to +85°C MAX3488EEPA -40°C to +85°C MAX3490ECSA 0° ...