Datasheet

MAX4554/MAX4555/MAX4556
Force-Sense Switches
22 ______________________________________________________________________________________
GUARD AMPLIFIER
VOLTAGE OR
CURRENT SOURCE
GND
LOAD2
LOAD1
NO2
NC3
NC2
COM1
V-
COM2
COM3
IN1
IN2
IN3
IN
NC1
NO1
NO3
MAX4556
V+
VL
LOGIC
LOAD
1
2
0
1
IN
GUARD AMPLIFIER
VOLTAGE OR
CURRENT SOURCE
LOGIC
LOAD
1
2
0
1
IN
EN
LOAD2
LOAD1
NOF1
NOF2
NOG2
GCOM
V-
FCOM
SCOM
IN1
IN
IN2
CMOS INVERTER
NOG1
NOS1
NOS2
MAX4554
GND
V+
VL
Figure 7. Using the MAX4554/MAX4556 to Switch 3-Wire Guarded Circuits from One Source to Two Loads