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MAX3157 Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX3157 Datasheet(HTML) 3 Page - Maxim Integrated Products |
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3 / 13 page  High CMRR RS-485 Transceiver with ±50V Isolation _______________________________________________________________________________________ 3 ELECTRICAL CHARACTERISTICS (continued) (VCC = +5V ±5%, YR = ZR = AR = BR = ISOCOM, C1 = C2 = 0.047µF, C3 = C4 = 1µF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V and TA = +25°C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DE = GND, VCC = GND or 5.25V, -7V ≤ (VIN - VISOCOM) ≤ 12V, YR = ZR = ISOCOM -5.0 8.0 Output Leakage (Y and Z) Full Duplex IO DE = GND, VCC = GND or 5.25V, -7V ≤ (VIN - VISOCOM) ≤ 12V, YR open, ZR open -0.58 1.0 mA IOSD1 VISOCOM - 7V ≤ VOUT ≤ VISOVCC -250 Driver Short-Circuit Output Current (Note 3) IOSD2 VISOCOM - 7V ≤ VOUT ≤ VISOCOM +12V 250 mA RECEIVER Receiver Differential Threshold Voltage VTH -7V ≤ VCM - VISOCOM ≤ 12V -200 -125 -50 mV Receiver Input Hysteresis ∆VTH 25 mV Receiver Output High Voltage VOH IO = -4mA, VID = -50mV V CC - 1.5 V Receiver Output Low Voltage VOL IO = 4mA, VID = -200mV 0.4 V Three-State Output Current at Receiver IOZR 0.4V ≤ VO ≤ 2.4V ±1µA -7V ≤ VCM - VISOCOM ≤ 12V, AR = BR = ISOCOM 1.5 Receiver Input Resistance RIN -7V ≤ VCM - VISOCOM ≤ 12V, AR open, BR open 12 k Ω Receiver Output Short-Circuit Current IOSR 0V ≤ VRO ≤ VCC ±7 ±100 mA SUPPLY CURRENT Supply Current ICC No load, RE = DE = DI = GND or VCC 25 85 mA DE = GND, RE = VCC, VISOCOM = GND 25 60 Supply Current in Shutdown Mode ISHDN DE = GND, RE = VCC, VISOCOM = ±50V ±600 µA Maximum Ground Differential ∆VGND DE = GND, RE = VCC, | ISOCOM leakage | ≤ 600µA ±50 V SWITCHING CHARACTERISTICS (VCC = +5V ±5%, YR = ZR = AR = BR = ISOCOM, C1 = C2 = 0.047µF, C3 = C4 = 1µF. Typical values are at VCC = +5V and TA = +25°C.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS tDPLH Figures 3 and 5, RDIFF = 54 Ω, CL1 = CL2 = 100pF 400 1400 2000 Driver Input to Output tDPHL Figures 3 and 5, RDIFF = 54 Ω, CL1 = CL2 = 100pF 400 1400 2000 ns Driver Output Skew | tDPLH - tDPHL | tDSKEW Figures 3 and 5, RDIFF = 54 Ω, CL1 = CL2 = 100pF 250 ns Driver Rise or Fall Time tDR, tDF Figures 3 and 5, RDIFF = 54 Ω, CL1 = CL2 =100pF 200 1200 2200 ns Maximum Data Rate fMAX 250 kbps |
Similar Part No. - MAX3157 |
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Similar Description - MAX3157 |
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