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ADM483 Arkusz danych(PDF) 3 Page - Analog Devices |
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ADM483 Arkusz danych(HTML) 3 Page - Analog Devices |
3 / 16 page ADM483 Rev. 0 | Page 3 of 16 SPECIFICATIONS VCC = 5 V ± 5%, TA = TMIN to TMAX, unless otherwise noted. Table 1. Parameter Min Typ Max Unit Test Conditions/Comments DRIVER Differential Output Voltage, VOD 5 V R = ∞, Figure 3 2.0 V R = 50 Ω (RS-422), Figure 3 1.5 5 V R = 27 Ω (RS-485), Figure 3 1.5 5 V VTST = –7 V to 12 V, Figure 4 ∆ |VOD| for Complementary Output States 0.2 V R = 27 Ω or 50 Ω, Figure 3 Common-Mode Output Voltage, VOC 3 V R = 27 Ω or 50 Ω, Figure 3 ∆ |VOC| for Complementary Output States 0.2 V R = 27 Ω or 50 Ω, Figure 3 Output Short-Circuit Current, VOUT = High 35 250 mA –7 V < VOUT < +12 V Output Short-Circuit Current, VOUT = Low 35 250 mA –7 V < VOUT < +12 V DRIVER INPUT LOGIC CMOS Input Logic Threshold Low 0.8 V CMOS Input Logic Threshold High 2.0 V CMOS Logic Input Current (DI) ±2 µA DE Input Resistance to GND 220 kΩ RECEIVER Differential Input Threshold Voltage, VTH –200 +200 mV –7 V < VCM < +12 V Input Hysteresis 70 mV VCM = 0V Input Resistance (A, B) 12 kΩ –7 V < VCM < +12 V Input Current (A, B) 1 mA VIN = +12 V –0.8 mA VIN = –7 V CMOS Logic Input Current (RE) ±2 µA CMOS Output Voltage Low 0.4 V IOUT = 4 mA CMOS Output Voltage High 3.5 V IOUT = –4 mA Output Short-Circuit Current 7 95 mA 0 V < VOUT < VCC Three-State Output Leakage Current ±2 µA 0.4 ≤ VOUT ≤ 2.4 V POWER SUPPLY CURRENT 0.1 10 µA DE = 0 V, RE = VCC (shutdown) 120 250 µA DE = 0 V, RE = 0 V 350 650 µA DE = VCC |
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