19-1358; Rev 0; 4/98
Fo rc e -S e n s e S w it c h e s
/MAX456
Ge n e ra l De s c rip t io n
Fe a t u re s
The MAX4554/MAX4555/MAX4556 are CMOS analog ICs
configured as force-sense switches for Kelvin sensing in
automated test equipment (ATE). Each part contains
high-current, low-resistance switches for forcing current,
and higher resistance switches for sensing a voltage or
switching guard signals. The MAX4554 contains two
force switches, two sense switches, and two guard
s witc he s c onfig ure d a s two trip le -p ole /s ing le -throw
(3PST) normally open (NO) switches. The MAX4555 con-
tains four independent single-pole/single-throw (SPST)
normally closed (NC) switches, two force switches, and
two sense switches. The MAX4556 contains three inde-
pendent single-pole/double-throw (SPDT) switches, of
which one is a force switch and two are sense switches.
♦ 6Ω Force Signal Paths (±15V Supplies)
1Ω Force Signal Matching (±15V Supplies)
♦ 60Ω Sense-Guard Signal Paths (±15V Supplies)
8Ω Sense-Guard Signal Matching (±15V Supplies)
♦ Rail-to-Rail Signal Handling
♦ Break-Before-Make Switching (MAX4556)
♦ t
and t
= 275ns (±15V Supplies)
ON
OFF
♦ Low 1µA Power Consumption
♦ >2kV ESD Protection per Method 3015.7
♦ TTL/CMOS-Compatible Inputs
These devices operate from a single supply of +9V to
+40V or dual supplies of ±4.5V to ±20V. On-resistance
(6Ω max) is matched between switches to 1Ω max.
Ord e rin g In fo rm a t io n
®
Each switch can handle Rail-to-Rail analog signals.
PART
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
16 Plastic DIP
16 Narrow SO
Dice*
The off-leakage current is only 0.25nA at +25°C and
2.5nA at +85°C. The MAX4554 is also fully specified for
+20V and -10V operation.
MAX4554CPE
MAX4554CSE
MAX4554C/D
MAX4554EPE
MAX4554ESE
All digital inputs have +0.8V and +2.4V logic thresh-
olds, ensuring both TTL- and CMOS-logic compatibility.
16 Plastic DIP
16 Narrow SO
Ap p lic a t io n s
Automated Test Equipment (ATE)
Calibrators
Ordering Information continued at end of data sheet.
*Contact factory for availability.
Precision Power Supplies
Automatic Calibration Circuits
Rail-to-Rail is a registered trademark of Nippon Motorola Ltd.
Asymmetric Digital Subscriber Line (ADSL)
with Loopback
P in Co n fig u ra t io n s /Fu n c t io n a l Dia g ra m s /Tru t h Ta b le s
TOP VIEW
MAX4554
MAX4554
1
2
3
4
5
6
7
8
16
15
NOG1
NOS1
NOF1*
V-
COMG
COMS
IN1 IN2 COMG COMS COMF*
EN
1
X
0
X
0
OFF
OFF
OFF
OFF
OFF
OFF
0
0
0
14 COMF*
13 V+
0
1
NOG2 NOS2 NOF2*
NOG1 NOS1 NOF1*
NOG1 NOS1 NOF1*
1
0
12 VL
GND
0
1
1
&
&
&
NOG2 NOS2 NOF2*
NOF2*
NOS2
NOG2
IN1
11
10 IN2
EN
NOTE: SWITCH POSITIONS SHOWN WITH IN_ = LOW
*INDICATES HIGH-CURRENT, LOW-RESISTANCE FORCE SWITCH
X = DON’T CARE
9
MAX4555/MAX4556 shown at end of data sheet.
DIP/SO
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
