MAX4904 Maxim, MAX4904 Datasheet - Page 10

• Manufacturer Part Number: MAX4904
• Description: The MAX4901–MAX4905 switches feature negative signal capability that allows signals below ground to pass through without distortion
• Manufacturer: Maxim

Low-R
Switches with Negative Rail Capability
Figure 1. Switching Time
Figure 2. Break-Before-Make Interval
Figure 3. Charge Injection
10
MAX4901–MAX4905
MAX4901–MAX4905
MAX4901–MAX4905
______________________________________________________________________________________
V
NO_ OR NC
GEN
LOGIC
INPUT
LOGIC
INPUT
NC OR NO_
ON
R
GEN
C
V
C
L
OUT
L
INCLUDES FIXTURE AND STRAY CAPACITANCE.
, Dual-SPST/Single-SPDT Clickless
IN_
NC
OR NO_
IN_
INCLUDES FIXTURE AND STRAY CAPACITANCE.
= V
GND
GND
NC
OR V
GND
NO_
IN_
(
V
V
V
R
CC
IL
CC
L
V
V
TO V
COM_
+ R
CC
R
CC
COM_
V
V
COM_
L
CC
CC
ON
IH
)
R
R
L
L
C
L
V
V
OUT
OUT
C
C
L
V
L
OUT
V
OUT
SWITCH
OUTPUT
IN
IN
LOGIC
INPUT
LOGIC
INPUT
OFF
OFF
V
V
OUT
Test Circuits/Timing Diagrams
0V
0V
CC
LOGIC-INPUT WAVEFORMS INVERTED FOR SWITCHES
THAT HAVE THE OPPOSITE LOGIC SENSE.
V
CC
0V
IN DEPENDS ON SWITCH CONFIGURATION;
INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
Q = (∆V
V
t
50%
OUT
ON
50%
ON
ON
OUT
0.9 x V
)(C
t
L
BBM
0UT
)
t
∆V
OFF
OUT
OFF
OFF
t r < 5ns
t f < 5ns
0.9 x V
0.9 x V
OUT
OUT