ISL32172E Datasheet, PDF (17/20 Pages) Intersil Corporation – QUAD, ±16.5kV ESD Protected, 3.0V to 5.5V, Low Power, RS-422 Transmitters

ISL32172E, ISL32272E, ISL32372E, ISL32174E, ISL32274E, ISL32374E, ISL32179E
Typical Performance Curves V_CC = V_L = 3.3V or 5V, T_A = +25°C; Unless Otherwise Specified. V_L notes apply to the ISL32179E
only. (Continued)
V_CC = V_L = 3V
DI
3.0
1.5
0
-1.5
+85°C
-3.0
3.0
1.5
0
32Mbps
3
0
DRIVER + CABLE DELAY (~288ns)
Y-Z
Y-Z
-1.5
+125°C
-3.0
TIME (80ns/DIV)
FIGURE 31. WORST CASE (NEGATIVE) FIVE PULSE DRIVER
WAVEFORMS DRIVING 200 FEET (62m) OF CAT5
CABLE (SINGLE TERMINATED WITH 121Ω)
(ISL32172E, ISL32174E, ISL32179E)
Die Characteristics
SUBSTRATE AND QFN THERMAL PAD POTENTIAL
(POWERED UP):
GND
TRANSISTOR COUNT:
1682
PROCESS:
Si Gate BiCMOS
V_CC = V_L = 4.5V
DI
32Mbps
5
0
4.5
3.0
1.5
Y-Z
0
-1.5
-3.0 _+85°C
-4.5
4.5
3.0
1.5
0
Y-Z
-1.5
-3.0 _+125°C
-4.5
DRIVER + CABLE DELAY (~472ns)
TIME (80ns/DIV)
FIGURE 32. WORST CASE (NEGATIVE) FIVE PULSE DRIVER
WAVEFORMS DRIVING 328 FEET (100m) OF
CAT5 CABLE (SINGLE TERMINATED WITH 121Ω)
(ISL32172E, ISL32174E, ISL32179E)
17
FN6824.0
December 16, 2008