ISL33334E Datasheet, PDF (14/23 Pages) Intersil Corporation – Operates from a single 3.3V supply

ISL33334E, ISL33337E
Typical Performance Curves V_CC = 3.3V, T_A = +25°C, unless otherwise specified (Continued)
DI
5
0
R_DIFF = 54Ω, C_L = 100pF
5
0
RO
DI
5
0
R_DIFF = 54Ω, C_L = 100pF
5
0
RO
4
Z
3
2
1Y
0
TIME (10ns/DIV)
FIGURE 20. RS-485, DRIVER AND RECEIVER WAVEFORMS,
LOW TO HIGH (FAST DATA RATE)
4
Y
3
2
Z
1
0
TIME (10ns/DIV)
FIGURE 21. RS-485, DRIVER AND RECEIVER WAVEFORMS,
HIGH TO LOW (FAST DATA RATE)
7.5
5.0 V_OUT+
250kbps
2.5 _{BOTH TOUTS LOADED WITH 3kΩ TO GND}
2 TRANSMITTERS AT 250kbps OR 400kbps
0
400kbps
-2.5
400kbps
-5
V_OUT -
-7.5
0
1000
2000
3000
250kbps
4000
5000
LOAD CAPACITANCE (pF)
FIGURE 22. RS-232, TRANSMITTER OUTPUT VOLTAGE vs LOAD
CAPACITANCE
50
40
TxOUT = LOW
30
20
V_OUT SHORTED TO GND
10
0
-10
TxOUT = HIGH
-20
-30
-40 -25
0
25
50
TEMPERATURE (°C)
75 85
FIGURE 24. RS-232, TRANSMITTER SHORT-CIRCUIT CURRENT vs
TEMPERATURE
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7.5
5.0
V_OUT+
2.5
OUTPUTS STATIC
BOTH T_OUTS LOADED WITH 3kΩ TO GND
0 _{AND AT V+ OR V-}
-2.5
-5
-7.5
-40 -25
V_OUT -
0
25
50
TEMPERATURE (°C)
75 85
FIGURE 23. RS-232, TRANSMITTER OUTPUT VOLTAGE vs
TEMPERATURE
C_L = 2000pF, 2 CHANNELS SWITCHING
5V
TxIN
0
5V
0
TxOUT/
-5V ^RxIN
5V
RxOUT
0
2µs/DIV
FIGURE 25. RS-232, TRANSMITTER AND RECEIVER WAVEFORMS
AT 250kbps
FN8776.1
October 21, 2016