isl43210 Intersil Corporation, isl43210 Datasheet - Page 9

• Manufacturer Part Number: isl43210
• Description: Low-voltage, Single Supply, Single Spdt Analog Switch
• Manufacturer: Intersil Corporation

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
Typical Performance Curves
0.50
0.40
0.30
0.20
0.10
0.25
0.20
0.15
0.10
0.05
0.15
0.10
0.05
40
35
30
25
20
15
10
0
0
0
5
FIGURE 9. ON-RESISTANCE vs SUPPLY VOLTAGE
0
3
-40°C
FIGURE 11. r
+85°C
+85°C
+85°C
4
+25°C
+25°C
-40°C
2
+25°C
5
+85°C
ON
-40°C
6
4
MATCH vs SWITCH VOLTAGE
+85°C
-40°C
7
+25°C
V
9
COM
V+ (V)
6
8
(V)
9
8
T
10
A
-40°C
= +25°C, Unless Otherwise Specified.
11
10
V+ = 3.3V
V+ = 12V
V+ = 5V
12
+25°C
12
13
ISL43210
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.
-10
-20
FIGURE 12. CHARGE INJECTION vs SWITCH VOLTAGE
60
50
40
30
20
10
45
40
35
30
25
20
15
30
25
20
15
10
20
15
10
0
FIGURE 10. ON-RESISTANCE vs SWITCH VOLTAGE
5
0
0
V+ = 3.3V
-40°C
+85°C
2
2
+25°C
-40°C
+85°C
+25°C
4
4
V+ = 5V
V
+85°C
+25°C
V
-40°C
COM
COM
6
6
(V)
(V)
V+ = 12V
8
8
10
October 30, 2007
10
V+ = 3.3V
V+ = 12V
V+ = 5V
FN6563.2
12
12