MAX481E/MAX483E/MAX485E/ MAX487E–MAX491E/MAX1487E
±15kV ESD-Protected, Slew-Rate-Limited,Low-Power, RS-485/RS-422 TransceiversNOTES FOR ELECTRICAL/SWITCHING CHARACTERISTICS
Note 1:All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to device
ground unless otherwise specified.
Note 2:All typical specifications are given for VCC= 5V and TA= +25°C.
Note 3:Supply current specification is valid for loaded transmitters when DE = 0V.Note 4:Applies to peak current. See Typical Operating Characteristics.–—–
Note 5:The MAX481E/MAX483E/MAX487E are put into shutdown by bringingREhigh and DE low. If the inputs are in this state for
less than 50ns, the parts are guaranteed not to enter shutdown. If the inputs are in this state for at least 600ns, the parts areguaranteed to have entered shutdown. See Low-Power Shutdown Modesection.
__________________________________________Typical Operating Characteristics(VCC= 5V, TA= +25°C, unless otherwise noted.)
OUTPUT CURRENT vs.
RECEIVER OUTPUT LOW VOLTAGE
MAX481E-01OUTPUT CURRENT vs.
RECEIVER OUTPUT HIGH VOLTAGE
MAX481E-02RECEIVER OUTPUT HIGH VOLTAGE
vs. TEMPERATURE
4.6OUTPUT HIGH VOLTAGE (V)4.44.24.03.83.63.43.2
MAX481E-035045OUTPUT CURRENT (mA)40353025201510500
0.5
1.0
1.5
2.0
-254.8
IRO = 8mAOUTPUT CURRENT (mA)-20
-15
-10
-50
2.5
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
OUTPUT LOW VOLTAGE (V)
OUTPUT HIGH VOLTAGE (V)
3.0
-60-40-20
0
20
40
60
80100
TEMPERATURE (°C)
RECEIVER OUTPUT LOW VOLTAGE
vs. TEMPERATURE
MAX481E-04DRIVER OUTPUT CURRENT vs.DIFFERENTIAL OUTPUT VOLTAGE
80OUTPUT CURRENT (mA)706050403020100
MAX481E-050.90.8OUTPUT LOW VOLTAGE (V)0.70.60.50.40.30.20.10
-60-40-20
0
20
40
60IRO = 8mA90
8010000.51.01.52.02.53.03.54.04.5DIFFERENTIAL OUTPUT VOLTAGE (V)
TEMPERATURE (°C)
5
MAX481E/MAX483E/MAX485E/ MAX487E–MAX491E/MAX1487E
±15kV ESD-Protected, Slew-Rate-Limited,Low-Power, RS-485/RS-422 Transceivers____________________________Typical Operating Characteristics (continued)(VCC= 5V, TA= +25°C, unless otherwise noted.)
DRIVER DIFFERENTIAL OUTPUTVOLTAGE vs. TEMPERATURE
2.360-E1)8VR = 54Ω4X( E2.2AMGATL2.1OV T2.0UPTU1.9O LAI1.8TNER1.7EFFID1.61.5
-60-40-20
0
20
40
60
80100
TEMPERATURE (°C)
MAX481E/MAX485E/MAX490E/MAX491ESUPPLY CURRENT vs. TEMPERATURE
600
90-EMAX481E/MAX485E; DE = V1CC, RE = X84XAM500)Aμ( TN400ERRUC300 YMAX485E; DE = 0, RE = X,LPPU200MAX481E; DE = RE = 0MAX490E/MAX491E; DE = RE = XS100MAX481E; DE = 0, RE = V0
CC-60-40-20
0
20
40
60
80100
TEMPERATURE (°C)
6
OUTPUT CURRENT vs.DRIVER OUTPUT LOW VOLTAGE
14070-E184X120AM)Am(100 TNERR80UC T60UPTUO402000
2
4
6
8
10
12OUTPUT LOW VOLTAGE (V)MAX483E/MAX487E–MAX489ESUPPLY CURRENT vs. TEMPERATURE
60001-E184XAM500)Aμ( TN400MAX483E; DE = VCC, RE = XERRUC300 MAX487E; DE = VYCC, RE = XLPPU200MAX483E/MAX487E; DE = RE = 0,SMAX488E/MAX489E; DE = RE = X100
MAX483E/MAX487E; DE = 0, RE = VCC0
-60-40-20
0
20
40
60
80100
TEMPERATURE (°C)
OUTPUT CURRENT vs.DRIVER OUTPUT HIGH VOLTAGE
-100
80-E1-9084XAM)A-80m( -70TNER-60RUC-50 TU-40PTUO-30-20-100
-8-6-4-20246
OUTPUT HIGH VOLTAGE (V)
MAX1487E
SUPPLY CURRENT vs. TEMPERATURE
60011-E184XAM500)Aμ( TN400ERRMAX1487E; DE = V, RE = XUC300CC YLPPU200SMAX1487E; DE = 0V, RE = X100
0
-60-40-20
0
20
40
60
80100
TEMPERATURE (°C)
MEMORY存储芯片MAX488ECPA中文规格书 - 图文
