ADM3491 Analog Devices, ADM3491 Datasheet
ADM3491
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ADM3491 Summary of contents
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... The ADM3491 is fabricated on BiCMOS, an advanced mixed technology process combining low power CMOS with fast switching bipolar technology. The ADM3491 is fully specified over the industrial tem- perature range and is available in DIP and SOIC packages as well as a new space saving TSSOP package. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. ...
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... ADM3491–SPECIFICATIONS Parameter DRIVER Differential Output Voltage for Complementary Output States OD Common-Mode Output Voltage for Complementary Output States OC CMOS Input Logic Threshold Low, V CMOS Input Logic Threshold High, V Logic Input Current (DE, DI, RE) Output Leakage (Y, Z) Current Output Short Circuit Current ...
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... PLH PHL 10 45 110 40 110 650 110 50 190 500 , 115 PLH PHL 600 –3– ADM3491 Units Test Conditions/ Comments pF, Figure pF, Figure pF, Figure ...
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... Power Dissipation 14-Lead SOIC . . . . . . . . . . . . . . . 650 mW , Thermal Impedance . . . . . . . . . . . . . . . . . . . 115 C/W JA Model Temperature Range ADM3491AN – +85 C ADM3491AR – +85 C ADM3491ARU – +85 C Power Dissipation 16-Lead TSSOP . . . . . . . . . . . . . . 500 mW , Thermal Impedance . . . . . . . . . . . . . . . . . . . 158 C/W JA Operating Temperature Range Industrial (A Version – +85 C Storage Temperature Range . . . . . . . . . . . . – +150 Lead Temperature (Soldering, 10 sec) ...
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... Receiver Output. High when A > 200 mV or Low when A < 200 mV. Receiver Output Enable. With RE low, the receiver output RO is enabled. With RE high, the output goes high impedance high and DE low, the ADM3491 enters a shutdown state. Driver Output Enable. A high level enables the driver differential outputs, Y and Z. A low level places high impedance state ...
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... ADM3491 Test Circuits Figure 1. Driver Voltage Measurement Test Circuit Figure 2. Driver Enable/Disable Test Circuit DIFF Figure 3. Driver Differential Output Delay Test Circuit DIFF C L2 Figure 4. Driver/Receiver Propagation Delay Test Circuit R/2 V R/2 OC Figure 5. Driver Voltage Measurement Test Circuit 2 ...
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... RO Figure 10. Receiver Propagation Delay REV PHL R t SKEW 90% POINT 10% POINT PHL Figure 12. Receiver Enable/Disable Timing –7– ADM3491 1.5V 1. 1.5V O LOW O/P HIGH V 1.5V OH Figure 11. Driver Enable/Disable Timing 1.5V 1. 1.5V O 0.25V ...
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... ADM3491 –Typical Performance Characteristics 0.5 1 1.5 2 OUTPUT VOLTAGE – Volts Figure 13. Receiver Output Low Voltage vs. Output Current 0.8 0.7 0.6 0 2.5mA 0.4 RO 0.3 0.2 0.1 0 –40 – TEMPERATURE – C Figure 14. Receiver Output Low Voltage vs. Temperature 120 100 0.5 1 1.5 DIFFERENTIAL O/P VOLTAGE – Volts Figure 15 ...
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... Figure 21. Driving 100 ft. Cable H-L Transition ] 100 90 80 100FT CABLE 640mV –40 Figure 22. Shutdown Current vs. Temperature –9– ADM3491 [ T ] 100FT CAT 5 T CABLE CH1 1.00V CH2 1.00V M40.0ns CH3 640mV CH3 2.00V CH4 2.00V – ...
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... 0 RS-485/RS-422 LINK ADM3491 GND Figure 23. ADM3491 Full-Duplex Data Link Table I. Transmitting Truth Table Transmitting Inputs Table II. Receiving Truth Table Receiving Inputs DE A–B X > +0 < –0.2 V ...
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... The ADM3491 is designed for bidirectional data communica- tions on multipoint transmission lines. A typical application showing a multipoint transmission network is illustrated in Figure 23 ...
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... ADM3491 14-Lead Plastic DIP (N-14) 0.795 (20.19) 0.725 (18.42 0.280 (7.11) 0.240 (6.10 0.060 (1.52) PIN 1 0.015 (0.38) 0.210 (5.33) MAX 0.130 (3.30) 0.160 (4.06) MIN 0.115 (2.93) SEATING 0.022 (0.558) 0.100 0.070 (1.77) PLANE (2.54) 0.014 (0.356) 0.045 (1.15) BSC OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 14-Lead Narrow Body Small Outline (SOIC) ...