ADM4850ARMZ Analog Devices Inc, ADM4850ARMZ Datasheet
ADM4850ARMZ
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ADM4850ARMZ Summary of contents
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ADM4850/ADM4851/ADM4852/ADM4853/ADM4854/ADM4855/ADM4856/ADM4857 FEATURES EIA RS-485-/RS-422-compliant Data rate options ADM4850/ADM4854: 115 kbps ADM4851/ADM4855: 500 kbps ADM4852/ADM4856: 2.5 Mbps ADM4853/ADM4857: 10 Mbps Half- and full-duplex options Reduced slew rates for low EMI True fail-safe receiver inputs 5 µA (maximum) supply current in shutdown ...
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ADM4850/ADM4851/ADM4852/ADM4853/ADM4854/ADM4855/ADM4856/ADM4857 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagrams ............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 ADM4850/ADM4854 Timing Specifications ........................... 4 ADM4851/ADM4855 Timing Specifications ........................... 4 ADM4852/ADM4856 Timing Specifications ........................... ...
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ADM4850/ADM4851/ADM4852/ADM4853/ADM4854/ADM4855/ADM4856/ADM4857 SPECIFICATIONS ± 5 unless otherwise noted MIN MAX Table 2. Parameter DRIVER Differential Output Voltage OD3 ∆|V | for Complementary Output States OD ...
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ADM4850/ADM4851/ADM4852/ADM4853/ADM4854/ADM4855/ADM4856/ADM4857 ADM4850/ADM4854 TIMING SPECIFICATIONS ± 5 unless otherwise noted MIN MAX Table 3. Parameter DRIVER Maximum Data Rate Propagation Delay PLH PHL Skew, t SKEW ...
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ADM4850/ADM4851/ADM4852/ADM4853/ADM4854/ADM4855/ADM4856/ADM4857 ADM4852/ADM4856 TIMING SPECIFICATIONS ± 5 unless otherwise noted MIN MAX Table 5. Parameter DRIVER Maximum Data Rate Propagation Delay PLH PHL Skew, t SKEW ...
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ADM4850/ADM4851/ADM4852/ADM4853/ADM4854/ADM4855/ADM4856/ADM4857 ABSOLUTE MAXIMUM RATINGS Table 7. Parameter V to GND CC Digital I/O Voltage (DE, RE, DI, RO) Driver Output/Receiver Input Voltage Operating Temperature Range Storage Temperature Range θ Thermal Impedance JA SOIC LFCSP MSOP Lead Temperature Soldering (10 sec) ...
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ADM4850/ADM4851/ADM4852/ADM4853/ADM4854/ADM4855/ADM4856/ADM4857 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS ADM4850 ADM4851 ADM4852/ ADM4853 TOP VIEW (Not to Scale) Figure 3. ADM4850/ADM4851/ADM4852/ADM4853 Pin Configuration, SOIC and MSOP Table 8. ADM4850/ADM4851/ADM4852/ADM4853 Pin Descriptions ...
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ADM4850/ADM4851/ADM4852/ADM4853/ADM4854/ADM4855/ADM4856/ADM4857 TYPICAL PERFORMANCE CHARACTERISTICS 400 ADM4853 350 300 ADM4853 GND 250 200 ADM4850 150 100 ADM4850 GND 50 0 –50 – TEMPERATURE (°C) Figure 6. Unloaded Supply ...
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ADM4850/ADM4851/ADM4852/ADM4853/ADM4854/ADM4855/ADM4856/ADM4857 120 100 0.5 1.0 1.5 2.0 2.5 3.0 3.5 OUTPUT VOLTAGE (V) Figure 12. Output Current vs. Driver Output Low Voltage –10 –30 –50 –70 –90 –110 0 0.5 1.0 1.5 2.0 2.5 ...
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ADM4850/ADM4851/ADM4852/ADM4853/ADM4854/ADM4855/ADM4856/ADM4857 TEST CIRCUITS V OD Figure 18. Driver Voltage Measurement & 60& & ! Figure 19. Driver Voltage Measurement over Common-Mode Voltage Range A R LDIFF B Figure ...
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ADM4850/ADM4851/ADM4852/ADM4853/ADM4854/ADM4855/ADM4856/ADM4857 SWITCHING CHARACTERISTICS 3V 1.5V 1. PLH B 1/ SKEW PLH – PHL 5V 90% POINT 10% POINT Figure 24. Driver Propagation Delay, Rise/Fall Timing A, B ...
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ADM4850/ADM4851/ADM4852/ADM4853/ADM4854/ADM4855/ADM4856/ADM4857 CIRCUIT DESCRIPTION The ADM4850/ADM4851/ADM4852/ADM4853/ADM4854/ ADM4855/ADM4856/ADM4857 are high speed RS-485/ RS-422 transceivers offering enhanced performance over industry-standard devices. All devices in the family contain one driver and one receiver, but offer a choice of performance options. The devices feature true ...
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ADM4850/ADM4851/ADM4852/ADM4853/ADM4854/ADM4855/ADM4856/ADM4857 HIGH RECEIVER INPUT IMPEDANCE The input impedance of the ADM4850/ADM4851/ADM4852/ ADM4853/ADM4854/ADM4855/ADM4856/ADM4857 receivers is 96 kΩ, which is eight times higher than the standard RS-485 unit load of 12 kΩ. This 96 kΩ impedance enables a standard driver to drive ...
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ADM4850/ADM4851/ADM4852/ADM4853/ADM4854/ADM4855/ADM4856/ADM4857 OUTLINE DIMENSIONS 5.00 (0.1968) 4.80 (0.1890 6.20 (0.2441) 4.00 (0.1574) 1 5.80 (0.2284) 3.80 (0.1497) 4 1.27 (0.0500) BSC 1.75 (0.0688) 1.35 (0.0532) 0.25 (0.0098) 0.10 (0.0040) COPLANARITY 0.51 (0.0201) 0.10 0.31 (0.0122) SEATING PLANE COMPLIANT TO ...
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... ADM4850AR −40°C to +85°C ADM4850ARZ −40°C to +85°C ADM4850ARZ-REEL7 −40°C to +85°C ADM4850ARMZ −40°C to +85°C ADM4850ARMZ-REEL7 −40°C to +85°C ADM4851AR −40°C to +85°C ADM4851AR-REEL7 −40°C to +85°C ADM4851ARZ −40°C to +85°C ADM4851ARZ-REEL7 − ...
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ADM4850/ADM4851/ADM4852/ADM4853/ADM4854/ADM4855/ADM4856/ADM4857 NOTES ©2004–2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D04931-0-1/11(C) Rev Page ...