ADM1485JR Analog Devices Inc, ADM1485JR Datasheet
ADM1485JR
Specifications of ADM1485JR
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ADM1485JR Summary of contents
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FEATURES Meets EIA RS-485 Standard 30 Mbps Data Rate Single 5 V Supply – +12 V Bus Common-Mode Range High Speed, Low Power BiCMOS Thermal Shutdown Protection Short-Circuit Protection Driver Propagation Delay Receiver Propagation Delay: ...
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ADM1485–SPECIFICATIONS Parameter DRIVER Differential Output Voltage OD3 ∆|V | for Complementary Output States OD Common-Mode Output Voltage V OC ∆|V | for Complementary Output States OD Output Short-Circuit Current (V OUT Output Short-Circuit Current (V OUT CMOS ...
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... DI 5 GND Model ADM1485JN ADM1485JR ADM1485JR-REEL ADM1485JR-REEL7 ADM1485AN ADM1485AR ADM1485AR-REEL ADM1485AR-REEL7 ADM1485ARM ADM1485ARM-REEL ADM1485ARM-REEL7 ADM1485ARZ* ADM1485ARZ-REEL ADM1485ARZ-REEL7 ADM1485JCHIPS *Z = lead-free part. –3– ADM1485 Receiver Output. When enabled if A > 200 mV, then RO = High < 200 mV, then RO = Low. Receiver Output Enable. A low level enables the receiver output, RO. A high level places high impedance state ...
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ADM1485 Test Circuits V OD Test Circuit 1. Driver Voltage Measurement V OD3 Test Circuit 2. Driver Voltage Measurement A R LDIFF B Test Circuit 3. Driver Propagation Delay Switching Characteristics 3V 1. PLH B 1/2VO V O ...
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OUTPUT VOLTAGE – V TPC 1. Output Current vs. Receiver Output Low Voltage 0 –2 –4 –6 –8 –10 –12 –14 –16 –18 ...
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ADM1485 100 0.5 1.0 1.5 2.0 2.5 OUTPUT VOLTAGE – V TPC 7. Output Current vs. Driver Output Low Voltage 0 –10 –20 –30 –40 –50 –60 –70 –80 ...
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TPC 13. Unloaded Driver Differential Outputs 1, 2 TPC 14. Loaded Driver Differential Outputs TPC 15. Driver/Receiver Propagation Delays Low to High REV TPC 16. Driver/Receiver Propagation ...
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ADM1485 APPLICATION INFORMATION Differential Data Transmission Differential data transmission is used to reliably transmit data at high rates over long distances and through noisy environments. Differential transmission nullifies the effects of ground shifts and noise signals that appear as common-mode ...
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Standard Small Outline Package [SOIC] Narrow Body (R-8) Dimensions shown in millimeters and (inches) 5.00 (0.1968) 4.80 (0.1890 6.20 (0.2440) 4.00 (0.1574) 5.80 (0.2284) 3.80 (0.1497 1.27 (0.0500) 1.75 (0.0688) BSC 1.35 (0.0532) 0.25 (0.0098) ...
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ADM1485 Revision History Location 9/03—Data Sheet changed from REV REV. E. Change to SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . ...
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