Switching characteristics (max3295) – Rainbow Electronics MAX3295 User Manual
Page 4
MAX3293/MAX3294/MAX3295
20Mbps, +3.3V, SOT23 RS-485/
RS-422 Transmitters
4
_______________________________________________________________________________________
Note 1: Devices production tested at +25°C. Limits over the operating temperature range are guaranteed by design.
Note 2: 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 3:
∆V
OD
and
∆V
OC
are the changes in V
OD
and V
OC
, respectively, when the DI input changes state.
Note 4: The maximum current applies to peak current just prior to foldback current limiting.
Note 5: Not production tested. Guaranteed by design.
SWITCHING CHARACTERISTICS (MAX3295)
(V
CC
= +3.3V ±5%, T
A
= +25°C, unless otherwise noted. Typical values are at V
CC
= +3.3V.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
t
PLH
25
Driver Propagation Delay
t
PHL
Figures 2, 3; R
DIFF
= 54
Ω, C
L
= 50pF
25
ns
T
A
= -40°C to +125°C
18.5
t
R
T
A
< +85°C
15
T
A
= -40°C to +125°C
18.5
Driver Differential Output Rise
or Fall Time
t
F
Figures 2, 3;
R
DIFF
= 54
Ω,
C
L
= 50pF
T
A
< +85°C
15
ns
Driver Output Skew
t
SKEW
Figures 2, 3; R
DIFF
= 54
Ω, C
L
= 50pF,
t
SKEW
= | t
PLH
- t
PHL
|
5
ns
Differential Driver Output Skew
t
DSKEW
Figures 2, 3; R
DIFF
= 54
Ω, C
L
= 50pF
5
ns
Figures 2, 3; R
DIFF
= 54
Ω, C
L
= 50pF,
T
A
≤ +85°C
20
Maximum Data Rate
Figures 2, 3; R
DIFF
= 54
Ω, C
L
= 50pF
16
Mbps
Driver Enable to Output High
t
ZH
Figures 4, 5; S2 closed, R
L
= 500
Ω,
C
L
= 100pF
400
ns
Driver Enable to Output Low
t
ZL
Figures 4, 5; S1 closed, R
L
= 500
Ω,
C
L
= 100pF
400
ns
Driver Disable Time from Low
t
LZ
Figures 4, 5; S1 closed, R
L
= 500
Ω,
C
L
= 100pF
100
ns
Driver Disable Time from High
t
HZ
Figures 4, 5; S2 closed, R
L
= 500
Ω,
C
L
= 100pF
100
ns
Device-to-Device Propagation
Delay Matching
Same power supply, maximum temperature
difference between devices = +30°C (Note 5)
25
ns