MAX3081 Maxim Integrated Products, MAX3081 Datasheet
MAX3081
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MAX3081 Summary of contents
Page 1
... All devices have a 1/8-unit-load receiver input imped- ance that allows up to 256 transceivers on the bus. The MAX3082/MAX3085/MAX3088 are intended for half- duplex communications, while the MAX3080/MAX3081/ MAX3083/MAX3084/MAX3086/MAX3087 are intended for full-duplex communications. The MAX3089 is selec- table between half-duplex and full-duplex operation. It also features independently programmable receiver and transmitter output phase via separate pins ...
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Fail-Safe, High-Speed (10Mbps), Slew-Rate-Limited RS-485/RS-422 Transceivers ABSOLUTE MAXIMUM RATINGS Supply Voltage (V ) ............................................................+7V CC Control Input Voltage (RE, DE)...................-0. Special Input Voltage (H/F, SRL, TXP, RXP)..................................-0. Driver Input Voltage (DI).............................-0. Driver Output Voltage ...
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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 ...
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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 ...
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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 = 500ns/div _______________________________________________________________________________________ Fail-Safe, High-Speed (10Mbps), Typical Operating Characteristics (continued) MAX3080/3089 TYP- 2V/div A RO 5V/div DRIVER PROPAGATION DELAY MAX3080/MAX3081/MAX3082, AND MAX3089 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 OR V ...
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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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... Noninverting Receiver Input and Noninverting Driver Output Receiver Phase. Connect RXP to GND, or leave unconnected for 13 RXP normal transmitter phase/polarity. Connect to V receiver phase/polarity. Positive Supply; 4.75V ≤ — N.C. Not Connected. Not internally connected. MAX3081/MAX3084/MAX3087 INPUT OUTPUTS High-Z High-Z Shutdown OUTPUT ...
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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 ...
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... DIP/SO 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 ______________________________________________________________________________________ ...
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... Fail-Safe section). The MAX3080/ MAX3081/MAX3082 feature reduced slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission up to 115kbps (see Reduced EMI and Reflections section) ...
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Slew-Rate-Limited RS-485/RS-422 Transceivers Figure 5. Driver DC Test Load The MAX3080 family guarantees a logic-high receiver output when the receiver inputs are shorted or open, or when they are connected to a terminated transmission ...
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... UNDER TEST Figure 8. Driver Enable/Disable Timing Test Load 3V DE 1. 90 Figure 10. Driver Enable and Disable Times (except MAX3081/MAX3084/MAX3087 1. Figure 12. Receiver Enable and Disable Times (except MAX3081/MAX3084/MAX3087 500 1.5V 1. ZL(SHDN) ZL 2.3V V OUTPUT NORMALLY LOW OL OUTPUT NORMALLY HIGH V 2. ZH(SHDN 1.5V 1 ...
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... Figure 14’s, and the poten- tial for EMI is significantly reduced. Figure 16 shows the same signal displayed for a MAX3080/ MAX3081/MAX3082, and MAX3089 with SRL = uncon- nected, transmitting under the same conditions. Figure 16’s high-frequency harmonic components are even lower. ...
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... 120 D Y NOTE: RE AND DE ON MAX3080/MAX3083/MAX3086/MAX3089 ONLY. Figure 17. Line Repeater for MAX3080/MAX3081/ MAX3083/MAX3084/MAX3086/MAX3087, and MAX3089 in Full-Duplex Mode Low-Power Shutdown Mode (except MAX3082/MAX3085/MAX3088) Low-power shutdown mode is initiated by bringing both RE high and DE low. In shutdown, the devices typically draw only 1nA of supply current. RE and DE may be driven simultaneously; the parts are guaranteed not to enter shutdown high and DE is low for less than 50ns ...
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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 ...
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... SO Printed USA is a registered trademark of Maxim Integrated Products. Y 120 120 MAX3080 MAX3081 MAX3083 MAX3084 MAX3086 MAX3087 MAX3089 (FULL-DUPLEX) TEMP. RANGE PIN-PACKAGE 0°C to +70°C 14 Plastic DIP 0°C to +70° -40°C to +85°C 14 Plastic DIP -40°C to +85° 0°C to +70°C 8 Plastic DIP 0° ...