MAX3085 Maxim Integrated Products, MAX3085 Datasheet
MAX3085
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MAX3085 Summary of contents
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... EMI and reduce reflec- tions caused by improperly terminated cables, allowing error-free data transmission up to 115kbps. The MAX3083/MAX3084/MAX3085 offer higher driver out- put slew-rate limits, allowing transmit speeds up to 500kbps. The MAX3086/MAX3087/MAX3088’s driver slew rates are not limited, making transmit speeds up to 10Mbps possible. The MAX3089’ ...
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... Figure 50Ω (RS-422) Figure 27Ω (RS-485) Figure 50Ω 27Ω Figure 50Ω 27Ω Figure 50Ω 27Ω DE, DI, RE, H/F, TXP, RXP DE, DI, RE, H/F, TXP, RXP MAX3080–MAX3085, and MAX3089 with SRL = V or unconnected CC DE, DI, RE H/F, TXP, RXP, internal pull-down SRL SRL (Note 3) ...
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Slew-Rate-Limited RS-485/RS-422 Transceivers DC ELECTRICAL CHARACTERISTICS (continued +5V ±5 unless otherwise noted. Typical values are MIN MAX PARAMETER SYMBOL RECEIVER Receiver Differential Threshold V Voltage ∆V Receiver Input ...
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Fail-Safe, High-Speed (10Mbps), Slew-Rate-Limited RS-485/RS-422 Transceivers SWITCHING CHARACTERISTICS—MAX3080–MAX3082, and MAX3089 with SRL = Unconnected (V = +5V ±5 unless otherwise noted. Typical values are MIN MAX PARAMETER SYMBOL t DPLH ...
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... Slew-Rate-Limited RS-485/RS-422 Transceivers SWITCHING CHARACTERISTICS—MAX3083–MAX3085, and MAX3089 with SRL = +5V ±5 unless otherwise noted. Typical values are MIN MAX PARAMETER SYMBOL t Driver Input to Output t Driver Output Skew t DSKEW | DPLH DPHL Driver Rise or Fall Time t DR, Maximum Data Rate Driver Enable to Output High ...
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Fail-Safe, High-Speed (10Mbps), Slew-Rate-Limited RS-485/RS-422 Transceivers SWITCHING CHARACTERISTICS—MAX3086–MAX3088, and MAX3089 with SRL = GND (V = +5V ±5 unless otherwise noted. Typical values are MIN MAX PARAMETER SYMBOL t DPLH ...
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... Slew-Rate-Limited RS-485/RS-422 Transceivers (V = +5V +25°C, unless otherwise noted NO-LOAD SUPPLY CURRENT vs. TEMPERATURE 525 A: MAX3086–MAX3088, 500 MAX3089 WITH SRL = GND 475 450 A 425 DE = GND B 400 A 375 350 B: MAX3080–MAX3085, B MAX3089 WITH 325 SRL = OPEN 300 -60 -40 - TEMPERATURE (°C) SHUTDOWN CURRENT vs. TEMPERATURE ...
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Fail-Safe, High-Speed (10Mbps), Slew-Rate-Limited RS-485/RS-422 Transceivers (V = +5V +25°C, unless otherwise noted DRIVER PROPAGATION DELAY (500kbps MODE) vs. TEMPERATURE 920 880 t 840 800 760 720 680 640 600 560 520 -60 ...
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... WITH SRL = OPEN MAX3080/3089 TYP- s/div MAX3080/3089 TYP-21 5V/div DI 2.5V/div RECEIVER PROPAGATION DELAY MAX3080–MAX3085, AND MAX3089 WITH SRL = OPEN MAX3080/3089 TYP-17 B 50ns/div 5V/div 2.5V/div DRIVER PROPAGATION DELAY MAX3086/MAX3087/MAX3088, AND MAX3089 WITH SRL = GND MAX3080/3089 TYP-22 5V/div 2.5V/div 50ns/div 2V/div 5V/div ...
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... Fail-Safe, High-Speed (10Mbps), Slew-Rate-Limited RS-485/RS-422 Transceivers PIN PIN MAX3080 MAX3081 MAX3082 MAX3083 MAX3084 MAX3085 MAX3089 MAX3086 MAX3087 MAX3088 HALF- FULL- FULL-DUPLEX DUPLEX DUPLEX DEVICES DEVICES MODE — — — — — — — — — — — — 9 — — — ...
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... Slew-Rate-Limited RS-485/RS-422 Transceivers PIN MAX3080 MAX3081 MAX3082 MAX3083 MAX3084 MAX3085 MAX3086 MAX3087 MAX3088 HALF- FULL- FULL-DUPLEX DUPLEX DUPLEX DEVICES DEVICES MODE 12 8 — 12 — — — — — — 6 — — — — — — — * (MAX3089 only.) In half-duplex mode, the driver outputs serve as receiver inputs. The full-duplex receiver inputs (A and B) will still have a 1/8-unit load, but are not connected to the receiver ...
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... Fail-Safe, High-Speed (10Mbps), Slew-Rate-Limited RS-485/RS-422 Transceivers MAX3082/MAX3085/MAX3088 TRANSMITTING INPUTS RECEIVING INPUTS RE DE A-B ≥ -0.05V 0 X ≤ -0. Open/shorted Don’t care Shutdown mode, driver and receiver outputs high impedance 12 ______________________________________________________________________________________ MAX3089 OUTPUTS TXP B/Z A High-Z High Shutdown X X OUTPUT H/F RXP ...
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... Figure 1. MAX3080/MAX3083/MAX3086 Pin Configuration and Typical Full-Duplex Operating Circuit TOP VIEW TOP VIEW GND DIP/SO Figure 2. MAX3081/MAX3084/MAX3087 Pin Configuration and Typical Full-Duplex Operating Circuit TOP VIEW TOP VIEW GND DIP/SO Figure 3. MAX3082/MAX3085/MAX3088 Pin Configuration and Typical Half-Duplex Operating Circuit ______________________________________________________________________________________ Fail-Safe, High-Speed (10Mbps 0 GND RE 0 ...
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... When activated, the thermal shut- down circuitry places the driver outputs into a high- impedance state. The receivers of the MAX3080–MAX3085, and the MAX3089 when operating in 115kbps or 500kbps mode, incorporate input filtering in addition to input hysteresis. This filtering enhances noise immunity with differential signals that have very slow rise and fall times ...
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... Any combination of these devices and/or other RS-485 transceivers with a total of 32 unit loads or less can be connected to the line. The MAX3080–MAX3085, and MAX3089 with SRL = V or unconnected, are slew-rate limited, minimizing EMI and reducing reflections caused by improperly termi- nated cables ...
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Fail-Safe, High-Speed (10Mbps), Slew-Rate-Limited RS-485/RS-422 Transceivers DIFF Figure 7. Driver Timing Test Circuit PLH PHL 1 ...
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... Transmitting a 20kHz Signal CC, components with large amplitudes are evident. Figure 15 shows the same signal displayed for a MAX3083/ MAX3084/MAX3085, and MAX3089 with SRL = V transmitting under the same conditions. Figure 15’s high-frequency harmonic components are much lower in amplitude, compared with Figure 14’s, and the poten- tial for EMI is significantly reduced ...
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... ZH(SHDN) both ends in its characteristic impedance, and stub , lengths off the main line should be kept as short as possible. The slew-rate-limited MAX3082/MAX3085, and the two modes of the MAX3089, are more tolerant of imperfect termination. MAX3080/3089 FIG-18 5V/div 1V/div 5V/div 5 s/div Line Length vs. Data Rate ...
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... Slew-Rate-Limited RS-485/RS-422 Transceivers s/div Figure 19. MAX3083/MAX3084/MAX3085, and MAX3089 with SRL = V System Differential Voltage at 50kHz Driving 4000 CC, feet of Cable 120 MAX3082 MAX3085 MAX3088 MAX3089 (HALF-DUPLEX) Figure 21. Typical Half-Duplex RS-485 Network ______________________________________________________________________________________ Fail-Safe, High-Speed (10Mbps), MAX3080/3089 FIG-19 5V/div DI 1V/div 5V/div RO Figure 20. MAX3086/MAX3087/MAX3088, and MAX3089 with ...
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... MAX3085EPA -40°C to +85°C MAX3085ESA -40°C to +85°C Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. ...