ISL4238E_14 Datasheet, PDF (15/17 Pages) Intersil Corporation – QFN Packaged, ±15kV ESD Protected, +2.7V to +5.5V, 10Nanoamp, 250kbps/1Mbps, RS-232 Transceivers with Enhanced Automatic Power-down

ISL4238E, ISL4244E, ISL4245E
Typical Performance Curves V_CC = 3.3V, T_A = +25°C
6
6
V_OUT+
4
4
V_OUT+
2
1 TRANSMITTER AT 250kbps
OTHER TRANSMITTERS AT 30kbps
0
2
1 TRANSMITTER AT 250kbps
OTHER TRANSMITTERS AT 30kbps
0
-2
-4
V_OUT -
-6
0
1000
2000
3000
4000
5000
LOAD CAPACITANCE (pF)
FIGURE 17. ISL4238E TRANSMITTER OUTPUT VOLTAGE vs
LOAD CAPACITANCE
-2
-4
V_OUT -
-6
0
1000
2000
3000
4000
5000
LOAD CAPACITANCE (pF)
FIGURE 18. ISL4244E TRANSMITTER OUTPUT VOLTAGE vs
LOAD CAPACITANCE
6
V_OUT+
4
2
1 TRANSMITTER AT 1Mbps
OTHER TRANSMITTERS AT 30kbps
0
-2
V_OUT -
-4
-6
0
1000
2000
3000
4000
5000
LOAD CAPACITANCE (pF)
FIGURE 19. ISL4245E TRANSMITTER OUTPUT VOLTAGE vs
LOAD CAPACITANCE
55
1 TRANSMITTER AT INDICATED RATE
50
45
250kbps
40
35
120kbps
30
25
20kbps
20
0
1000
2000
3000
4000
5000
LOAD CAPACITANCE (pF)
FIGURE 20. ISL4238E SUPPLY CURRENT vs LOAD
CAPACITANCE WHEN TRANSMITTING DATA
45 _{1 TRANSMITTER AT INDICATED RATE}
40
250kbps
35
30
120kbps
25
20
20kbps
15
10
0
1000
2000
3000
4000
5000
LOAD CAPACITANCE (pF)
FIGURE 21. ISL4244E SUPPLY CURRENT vs LOAD
CAPACITANCE WHEN TRANSMITTING DATA
15
90
1 TRANSMITTER AT INDICATED RATE
80
70
1Mbps
60
50
40
250kbps
30
120kbps
20
10
0
1000
2000
3000
4000
5000
LOAD CAPACITANCE (pF)
FIGURE 22. ISL4245E SUPPLY CURRENT vs LOAD
CAPACITANCE WHEN TRANSMITTING DATA
FN8038.5
May 13, 2010