MAX3280 Просмотр технического описания (PDF) - Maxim Integrated
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Компоненты Описание
производитель
MAX3280
Maxim Integrated
MAX3280 Datasheet PDF : 11 Pages
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±15kV ESD-Protected 52Mbps, 3V to 5.5V, SOT23
RS-485/RS-422 True Fail-Safe Receivers
SWITCHING CHARACTERISTICS
(VCC = 3V to 5.5V, VL = VCC, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = 5V and TA = +25°C.) (Notes 2, 3)
PARAMETER
Maximum Data Rate
Receiver Propagation Delay
Receiver Output |tPLH - tPHL|
SYMBOL
fMAX
tPLH
tPHL
tPSKEW
CONDITIONS
CL = 15pF (Notes 5, 6)
Figure 1, CL = 15pF, VID = 2V, VCM = 0
Figure 1, CL = 15pF, VID = 2V, VCM = 0
Figure 1, CL = 15pF, TA = +25°C
MIN TYP MAX UNITS
52
Mbps
7
15
ns
8
15
2
ns
Device-to-Device Propagation
Delay Matching
Same power supply, maximum temperature
difference between devices = +30°C.
(Note 5)
8
ns
ENABLE/DISABLE TIME FOR MAX3281E/MAX3283E
Receiver Enable to Output Low
Receiver Enable to Output High
tPRZL
tPRZH
Figure 2, CL = 15pF
Figure 2, CL = 15pF
500
ns
500
ns
Receiver Disable Time from Low
Receiver Disable Time from High
tPRLZ
tPRHZ
Figure 2, CL = 15pF
Figure 2, CL = 15pF
500
ns
500
ns
Note 2: Parameters are 100% production tested at +25°C, limits over temperature are guaranteed by design.
Note 3: All currents into the device are positive; all currents out of the device are negative. All voltages are referenced to device
ground, unless otherwise noted.
Note 4: VCM is the common-mode input voltage. VID is the differential input voltage.
Note 5: Not production tested. Guaranteed by design.
Note 6: See Table 2 for MAX3284E data rates with VL < VCC.
(VCC = 3.3V, TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics
RECEIVER OUTPUT LOW VOLTAGE
vs. OUTPUT CURRENT
5
4
3
VCC = 3.3V
VCC = 5V
2
1
0
0 10 20 30 40 50 60
OUTPUT CURRENT (mA)
RECEIVER OUTPUT HIGH VOLTAGE
vs. OUTPUT CURRENT
5
4
VCC = 5V
3
VCC = 3.3V
2
1
0
-50 -40 -30 -20 -10
0
OUTPUT CURRENT (mA)
RECEIVER OUTPUT HIGH VOLTAGE
vs. TEMPERATURE
5.0
VCC = 5V
4.5
4.0
3.5
VCC = 3.3V
3.0
A = 1V, B = GND, IOH = -4mA
2.5
-50 -25 0 25 50 75
TEMPERATURE (°C)
100 125
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