MAX4622 Maxim, MAX4622 Datasheet - Page 8

• Manufacturer Part Number: MAX4622
• Description: The MAX4621/MAX4622/MAX4623 are precision, dual, high-speed analog switches
• Manufacturer: Maxim

Dual, 5 Ω Analog Switches
Figure 2. Switching-Time Test Circuit
Figure 3. MAX4622 Break-Before-Make Test Circuit
Figure 4. Charge-Injection Test Circuit
8
_______________________________________________________________________________________
V
COM_
LOGIC
INPUT
V
V
COM
COM
MAX4621
MAX4622
MAX4623
FOR t
FOR t
= +10V
= +10V
= -10V
ON
OFF
IN_
C
LOGIC 0 INPUT.
V
L
GEN
LOGIC
INPUT
INCLUDES FIXTURE AND STRAY CAPACITANCE.
R
GEN
SWITCH
COM_
COM_
INPUT
+5V
GND
FOR LOAD CONDITIONS, SEE Electrical Characteristics.
C
V
IN1
0
L
L
COM
INCLUDES FIXTURE AND STRAY CAPACITANCE.
+5V
GND
V
0
L
REPEAT TEST FOR EACH SWITCH.
COM_
+5V
GND
V
0
L
+15V
-15V
NC_ OR NO_
V-
V+
NO_
NC_
+15V
-15V
V+
V-
R
OR NO_
V+
L2
+15V
-15V
V+
V-
NC_
MAX4622
V-
V
MAX4621
MAX4622
MAX4623
O2
R
C
L
L
= 100
= 35pF
C
C
L
L2
V
R
C
O
R
L
L
V
= V
L1
= 100
= 35pF
O
V
COM
O
V
O1
R
L
R
= R
L
C
ON
V
IN_
L1
O
LOGIC
INPUT
SWITCH
OUTPUT
SWITCH
OUTPUT
LOGIC
INPUT
SWITCH
INPUT
SWITCH
OUTPUT
SWITCH
INPUT
ON
V
V
LOGIC INPUT WAVEFORM IS INVERTED FOR
SWITCHES THAT HAVE THE OPPOSITE LOGIC
SENSE CONTROL.
COM
COM
+3V
-V
V
V
COM
0
0
0
+3V
ANA
O
0
0
V
O2
Q = ( V
V
t
V
V
OFF
ON
O
O
O1
50%
t
50%
D
O
)(C
0.9V
L
)
0.9V
O
O
t
OFF
t
t
r
f
< 20ns
< 20ns
ON
t
D
0.9V
O
0.9V
O