MAX4518 Maxim, MAX4518 Datasheet - Page 10

• Manufacturer Part Number: MAX4518
• Description: The MAX4518/MAX4519 precision, monolithic, CMOS analog multiplexers (muxes) offer low on-resistance (less than 100Ω), which is matched to within 4Ω between channels and remains flat over the specified analog signal range (10Ω max)
• Manufacturer: Maxim

Precision, 4-Channel/Dual 2-Channel,
Low-Voltage, CMOS Analog Multiplexers
Figure 5. Charge Injection
Figure 6. Off Isolation, On Loss, Crosstalk
Figure 7. NO/COM Capacitance
10
_________________________________Test Circuits/Timing Diagrams (continued)
CHANNEL
SELECT
V
______________________________________________________________________________________
S
V+
R
S
V+
A2
A1
A0
GND
CHANNEL
SELECT
MAX4518
MAX4519
A
EN
EN
V-
V-
+5V
V+
MAX4518
MAX4519
V
EN
10nF
-5V
V+
V+
V-
A0
NO
EN
A1
COM
NO1
NO8
GND
COM
10nF
GND
NO
MAX4518
MAX4519
+5V
V+
V
-5V
OUT
V
V-
IN
NOTES:
COM
CAPACITANCE
ANALYZER
MEAS.
f = 1MHz
1MHz
50
50
MEASUREMENTS ARE STANDARDIZED AGAINST SHORT AT SOCKET TERMINALS.
OFF ISOLATION IS MEASURED BETWEEN COM AND “OFF” TERMINAL ON EACH SWITCH.
ON LOSS IS MEASURED BETWEEN COM AND “ON” TERMINAL ON EACH SWITCH.
CROSSTALK IS MEASURED BETWEEN COMA AND COMB
TERMINALS ON EACH DEVICE.
SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.
ANALYZER
NETWORK
C
50
L
V
= 1000nF
50
OUT
REF
V
LOGIC
INPUT
V
OUT
EN
+3V
0V
ERROR Q WHEN THE CHANNEL TURNS OFF.
Q = V
OFF ISOLATION = 20log
V
OUT
CROSSTALK = 20log
OFF
ON LOSS = 20log
OUT
IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER
x C
L
V
V
V
V
V
OUT
OUT
OUT
V
IN
IN
IN
ON
OFF
V
OUT