MAX4555 Maxim, MAX4555 Datasheet - Page 24

• Manufacturer Part Number: MAX4555
• Description: The MAX4554/MAX4555/MAX4556 are CMOS analog ICs configured as force-sense switches for Kelvin sensing in automated test equipment (ATE)
• Manufacturer: Maxim

Force-Sense Switches
Figure 9. Switching 8-Wire Guarded Force-Sense Measurements from One Precision Source-Monitor to Two Loads
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IN
IN
COMG
COM1
COMF
COMS
COM2
COM3
______________________________________________________________________________________
IN1
IN2
IN1
IN3
CMOS INVERTER
V+
V+
MAX4556
MAX4554
IN2
V-
V-
IN A,B LOAD
0
1
LOGIC
VL
VL
2
1
GND
EN
NC1
NO1
NC2
NO2
NO3
NC3
NOF2
GND
NOG1
NOG2
NOF1
NOS1
NOS2
FORCE-SENSE
AMPLIFIER
FORCE-SENSE
AMPLIFIER
FORCE-SENSE AMPLIFIER
VOLTAGE SOURCE
VOLTAGE SOURCE
V+
V+
V+
V+
V+
V+
V+
V+
V-
V-
V-
V-
V-
V-
V-
V-
GUARD AMPLIFIER
GUARD AMPLIFIER
GUARD AMPLIFIER
GUARD AMPLIFIER
IN A,B LOAD
CURRENT SENSE
CURRENT SENSE
CURRENT SENSE
CURRENT SENSE
0
1
IN A,B LOAD
0
1
LOGIC
LOGIC
V+
V+
V-
V
V-
V
V
V
1
2
2
1
INA
INB
INB
INA
COMF
COMS
COMG
COMG
COMS
COMF
COM1
COM2
COM3
COM1
COM2
COM3
V+
V+
V+
V+
IN1
IN1
IN1
IN1
MAX4554
MAX4556
MAX4554
MAX4556
IN2 IN3
IN2 IN3
V-
V-
V-
V-
LEAKAGE
CURRENT
LEAKAGE
CURRENT
LEAKAGE
CURRENT
LEAKAGE
CURRENT
IN2
IN2
NOG1
NOS1
NOF1
NOG2
NOS2
NOF2
GND
GND
GND
NC1
NC2
NC3
NO1
NO2
NO3
GND
NC1
NC2
NC3
NO1
NO2
NO3
NC1
NC2
NC3
NO1
NO2
NO3
VL
VL
VL
VL
EN
EN
TWINAX CABLE
TWINAX CABLE
TWINAX CABLE
TWINAX CABLE
-FORCE
-FORCE
+FORCE
+FORCE
LOAD 1
LOAD 1
+SENSE
+SENSE
-SENSE
-SENSE
+DRIVEN GUARD
+DRIVEN GUARD
-DRIVEN GUARD
-DRIVEN GUARD
LOAD 2
LOAD 2