MAX3480A Ver la hoja de datos (PDF) - Maxim Integrated
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MAX3480A Datasheet PDF : 16 Pages
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Complete, Isolated, 3.3V
RS-485/RS-422 Data Interface
SWITCHING CHARACTERISTICS—MAX3480B
(VCC = VCC1 = VCC2 = VCC4 = VCC5 = 3.0V to 3.6V, FS = 0V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at
VCC = VCC1 = VCC2 = VCC4 = VCC5 = 3.3V and TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Driver Input to Output
Propagation Delay
Driver Output Skew
tPLH
tPHL
tSKEW
Figures 4, 6; RDIFF = 54Ω,
CL1 = CL2 = 100pF
Figures 4, 6; RDIFF = 54Ω,
CL1 = CL2 = 100pF
1.0
2.0
µs
1.0
2.0
100
800
ns
Driver Rise or Fall Time
Driver Enable to Output High
Driver Enable to Output Low
Driver Disable Time from Low
Driver Disable Time from High
Receiver Input to Output
Propagation Delay
tPLH - tPHL Differential
Receiver Skew
Maximum Data Rate
tR, tF
tZH
tZL
tLZ
tHZ
tPLH
tPHL
tSKD
fMAX
Figures 4, 6; RDIFF = 54Ω,
CL1 = CL2 = 100pF
Figures 5, 7; CL = 100pF, S2 closed
Figures 5, 7; CL = 100pF, S1 closed
Figures 5, 7; CL = 15pF, S1 closed
Figures 5, 7; CL = 15pF, S2 closed
Figures 4, 8; RDIFF = 54Ω,
CL1 = CL2 = 100pF
Figures 4, 8; RDIFF = 54Ω,
CL1 = CL2 = 100pF
tPLH, tPHL < 50% of data period
1.0
2.0
µs
50
100
µs
50
100
µs
13
50
µs
13
50
µs
0.8
2.0
µs
0.8
2.0
50
ns
0.25
Mbps
Note 1: All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to
logic-side ground (GND1, GND2), unless otherwise specified.
Note 2: For DE´ and DI´ pin descriptions, see Detailed Block Diagram and Typical Application Circuit (Figure 1 for
MAX3480A/MAX3480B).
Note 3: Shutdown supply current is the current at VCC1 when shutdown is enabled.
Note 4: Applies to peak current. See Typical Operating Characteristics and Applications Information.
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