SP3495E Datasheet, PDF (5/17 Pages) Exar Corporation – HIGH SPEED +3.3V RS-485/RS-422 TRANSCEIVERS WITH +/-15KV ESD PROTECTION AND ADVANCED FAILSAFE

SP3495E-3497E
REV. 1.0.0
HIGH SPEED +3.3V RS-485/RS-422 TRANSCEIVERS WITH +/-15KV ESD PROTECTION AND ADVANCED FAILSAFE
UNLESS OTHERWISE NOTED: VCC = +3.0V TO +3.6V WITH T_A FROM -40^OC TO +85^OC. TYPICAL VALUES ARE AT
VCC = +3.3V AND 25^OC.
SYMBOL
V_IH
V_IL
V_HYS
I_IN
PARAMETERS
Logic Input Thresholds (DI, DE, RE)
Driver Input Hysteresis
Logic Input Current (DI, DE and RE)
Driver AC Characteristics
freq
Data Signaling Rate
t_PLH
Driver Propagation Delay (low to
High)
t_PHL
Driver Propagation Delay (High to
Low)
t_R
Driver Rise Time
t_F
Driver Fall time
|t_PLH-t_PHL|
t_OZH
Differential Pulse Skew
Driver Enable to Output High
t_OZL
Driver Enable to Outut Low
t_OHZ
Driver Disable from Output High
t_OLZ
Driver Disable from Output Low
t_OZV
Shutdown to Driver Output Valid
t_SHDN
Time to Shutdown
RECEIVER DC CHARACTERISTICS
I_IN
Input Current (A, B pins)
V_IH
Receiver Differential Thresholds
V_IL
(V_A - V_B)
Receiver Input Hysteresis
V_OH
Receiver Output Voltage High
V_OL
Receiver Output Voltage Low
MIN.
2.0
-10
32
5
5
2.5
2.5
50
-290
-200
2.4
TYP.
100
11
11
4.5
4.5
-85
-125
25
MAX. UNITS
CONDITIONS
V Logic Input High
0.8
V Logic Input Low
mV T_A = 25°C
10 uA IN = 0V
uA IN = Vcc
Mbps 1/t_UI, Duty Cycle 40 to 60%
24
ns C_L = 50pF, R_L = 54Ω,
freq = 8MHz, Figures 6 and 7
24
ns C_L = 50pF, R_L = 54Ω,
freq = 8MHz, Figures 6 and 7
10
ns C_L = 50pF, R_L = 54Ω,
freq = 8MHz, Figures 6 and 7
10
ns C_L = 50pF, R_L = 54Ω,
freq = 8MHz, Figures 6 and 7
3
ns Figures 6 and 7
50
ns C_L = 50pF, R_L = 500Ω, Figures
8 and 9
50
ns C_L = 50pF, R_L = 500Ω, Figures
10 and 11
50
ns C_L = 50pF, R_L = 500Ω, Figures
8 and 9
50
ns C_L = 50pF, R_L = 500Ω, Figures
10 and 11
6
us C_L = 50pF, R_L = 500Ω
600 ns Note 2 and 3
500 uA DE = 0, Vcc = 0 or 3.3V
V_A or V_B = 12V, other input 0V
V_A or V_B = -7V, other input 0V
-40 mV _{-7V ≤ VCM ≤ 12V, rising}
mV _{-7V ≤ VCM ≤ 12V, falling}
mV V_CM = 0V
V I_OUT = -8mA, V_ID = 200mV
0.4
V I_OUT = 8mA, V_ID = -200mV
5