ISL43210_07 Datasheet, PDF (9/12 Pages) Intersil Corporation – Low-Voltage, Single Supply, Single SPDT Analog Switch

ISL43210
these diodes conducts if any analog signal exceeds V+ or
GND.
Virtually all the analog leakage current comes from the ESD
diodes to V+ or GND. Although the ESD diodes on a given
signal pin are identical and therefore fairly well balanced,
they are reverse biased differently. Each is biased by either
V+ or GND and the analog signal. This means their leakages
will vary as the signal varies. The difference in the two diode
leakages to the V+ and GND pins constitutes the
analog-signal-path leakage current. All analog leakage
current flows between each pin and one of the supply
terminals, not to the other switch terminal. This is why both
sides of a given switch can show leakage currents of the
same or opposite polarity. There is no connection between
the analog signal paths and V+ or GND.
Typical Performance Curves T_A = +25°C, Unless Otherwise Specified.
40
35
30
+85°C
25
20
15
+25°C
-40°C
10
5
3 4 5 6 7 8 9 10 11 12 13
V+ (V)
FIGURE 9. ON-RESISTANCE vs SUPPLY VOLTAGE
45
40
35
30
25
20
15
30
25
20
15
10
20
+85°C
15
+85°C
+25°C
-40°C
+25°C
+85°C
+25°C
-40°C
10
5 ^-40°C
0
2
4
6
8
V_COM (V)
V+ = 3.3V
V+ = 5V
V+ = 12V
10
12
FIGURE 10. ON-RESISTANCE vs SWITCH VOLTAGE
0.50
0.40
0.30
+25°C
0.20
0.10
+85°C
0
-40°C
0.25
0.20
0.15
+25°C
+85°C
0.10
0.05 ^+85°C
0
-40°C
0.15
0.10
0.05 ^-40°C
+85°C
+25°C
0
0
2
4
6
V_COM (V)
V+ = 3.3V
V+ = 5V
V+ = 12V
-40°C
8
10
+25°C
12
FIGURE 11. r_ON MATCH vs SWITCH VOLTAGE
60
50
40
30
20
10
V+ = 3.3V
0
V+ = 5V
V+ = 12V
-10
-20
0
2
4
6
8
10
12
V_COM (V)
FIGURE 12. CHARGE INJECTION vs SWITCH VOLTAGE
9
FN6563.2
October 30, 2007