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PDF MAX4556 Data sheet ( Hoja de datos )
| Número de pieza | MAX4556 | |
| Descripción | Force-Sense Switches | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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19-1358; Rev 0; 4/98
Force-Sense Switches
General Description
Features
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
switches configured as two triple-pole/single-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.
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.
Each switch can handle Rail-to-Rail® analog signals.
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.
All digital inputs have +0.8V and +2.4V logic thresh-
olds, ensuring both TTL- and CMOS-logic compatibility.
Applications
Automated Test Equipment (ATE)
Calibrators
o 6Ω Force Signal Paths (±15V Supplies)
1Ω Force Signal Matching (±15V Supplies)
o 60Ω Sense-Guard Signal Paths (±15V Supplies)
8Ω Sense-Guard Signal Matching (±15V Supplies)
o Rail-to-Rail Signal Handling
o Break-Before-Make Switching (MAX4556)
o tON and tOFF = 275ns (±15V Supplies)
o Low 1µA Power Consumption
o >2kV ESD Protection per Method 3015.7
o TTL/CMOS-Compatible Inputs
Ordering Information
PART
MAX4554CPE
TEMP. RANGE
0°C to +70°C
PIN-PACKAGE
16 Plastic DIP
MAX4554CSE
0°C to +70°C
16 Narrow SO
MAX4554C/D
MAX4554EPE
MAX4554ESE
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
Dice*
16 Plastic DIP
16 Narrow SO
Ordering Information continued at end of data sheet.
*Contact factory for availability.
Precision Power Supplies
Automatic Calibration Circuits
Asymmetric Digital Subscriber Line (ADSL)
with Loopback
Rail-to-Rail is a registered trademark of Nippon Motorola Ltd.
Pin Configurations/Functional Diagrams/Truth Tables
TOP VIEW
NOG1 1
NOS1 2
NOF1* 3
V- 4
GND 5
NOF2* 6
NOS2 7
NOG2 8
MAX4554
DIP/SO
16 COMG
15 COMS
14 COMF*
13 V+
12 VL
11 IN1
10 IN2
9 EN
MAX4554
EN IN1 IN2 COMG COMS COMF*
1 X X OFF OFF OFF
0 0 0 OFF OFF OFF
0 0 1 NOG2 NOS2 NOF2*
0 1 0 NOG1 NOS1 NOF1*
01
NOG1 NOS1 NOF1*
1& & &
NOG2 NOS2 NOF2*
NOTE: SWITCH POSITIONS SHOWN WITH IN_ = LOW
*INDICATES HIGH-CURRENT, LOW-RESISTANCE FORCE SWITCH
X = DON’T CARE
MAX4555/MAX4556 shown at end of data sheet.
________________________________________________________________ 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.
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1 page  
Force-Sense Switches
ELECTRICAL CHARACTERISTICS—MAX4554 (±15V Supplies) (continued)
(V+ = +15V, V- = -15V, VL = 5V, GND = 0V, VIN_H = 2.4V, VIN_L = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values
are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
TA
On-Resistance Match
(Note 4)
∆RON
VCOM_ = ±10V, ICOM_ = 1mA
On-Resistance Flatness
(Note 5)
RFLAT(ON) VCOM_ = +5V, 0V, -5V; ICOM_ = 1mA
NOS_, NOG Off-Leakage
Current
INOS_(OFF), V+ = 16.5V; V- = -16.5V;
INOG_(OFF) VCOM_ = ±10V; VNOS_, VNOG_ = 10V
COMS, COMG Off-Leakage ICOMS(OFF), V+ = 16.5V; V- = -16.5V;
Current
ICOMG(OFF) VCOM_ = ±10V; VNOS_, VNOG_ = 10V
COMS, COMG On-Leakage ICOMS(ON), V+ = 16.5V, V- = -16.5V,
Current
ICOMG(ON) VCOM_ = ±10V
Charge Injection
LOGIC INPUT
Q VCOM_ = 0, Figure 13
IN_, EN Input Logic
Threshold High
VIN_H,
VENH
IN_, EN Input Logic
Threshold Low
VIN_L,
VENL
IN_, EN Input Current Logic
High or Low
IIN_H, IIN_L,
IENH, IENL
VEN = 0 or VL
SWITCH DYNAMIC CHARACTERISTICS
Turn-On Time (Force)
tON
VCOM_ = ±10V, RL = 300Ω,
Figure 10
Turn-On Time
(Sense-Guard)
tON
VCOM_ = ±10V, RL = 1kΩ,
Figure 10
Turn-Off Time (Force)
tOFF
VCOM_ = ±10V, RL = 300Ω,
Figure 10
Turn-Off Time
(Sense-Guard)
tOFF
VCOM_ = ±10V, RL = 1kΩ,
Figure 10
Enable Time On
tEN
VCOM_ = ±10V, RL = 300Ω,
Figure 11
Enable Time Off
tEN
VCOM_ = ±10V, RL = 300Ω,
Figure 11
NOF_ Off-Capacitance
NOS_, NOG_
Off-Capacitance
COMF Off-Capacitance
COMS, COMG
Off-Capacitance
COFF
COFF
COFF
COFF
VNOF = GND, f = 1MHz, Figure 14
VNOS_, VNOG_ = GND; f = 1MHz;
Figure 14
VCOMF = GND, f = 1MHz, Figure 14
VCOMS_, VCOMG _= GND; f = 1MHz;
Figure 14
+25°C
C, E
+25°C
C, E
+25°C
C, E
+25°C
C, E
+25°C
C, E
+25°C
C, E
C, E
C, E
+25°C
C, E
+25°C
C, E
+25°C
C, E
+25°C
C, E
+25°C
C, E
+25°C
C, E
+25°C
+25°C
+25°C
+25°C
MIN TYP
(Note 2)
5
1.5
-0.25
-2.5
-0.25
-2.5
-0.5
-5.0
0.01
0.01
0.02
4
1.6
0.8 1.6
-0.5 0.03
135
135
170
135
310
170
22
9
29
9
MAX
9
10
5
6
0.25
2.5
0.25
2.5
0.5
5.0
2.4
0.5
275
325
225
275
275
325
225
275
500
600
300
400
UNITS
Ω
Ω
nA
nA
nA
pC
V
V
µA
ns
ns
ns
ns
ns
ns
pF
pF
pF
pF
_______________________________________________________________________________________ 5
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5 Page 
Force-Sense Switches
__________________________________________Typical Operating Characteristics
(V+ = +15V, V- = -15V, GND = 0V, TA = +25°C, unless otherwise noted.)
SWITCH ON-RESISTANCE vs. VCOM
(DUAL SUPPLIES)
40
35 MAX4554/MAX4556
30 SENSE & GUARD
25
20
MAX4555 SENSE
15
10
5 FORCE
0
-15 -10
-5 0 5
VCOM (V)
10 15
MAX4554
FORCE SWITCH ON-RESISTANCE
vs. VCOM AND TEMPERATURE
6
5
TA = +85°C
4
3
TA = +25°C
2
TA = -40°C
1
0
-10
-5
0 5 10 15 20
VCOM (V)
SENSE/GUARD SWITCH ON-RESISTANCE
vs. VCOM AND TEMPERATURE
60
55
50
45 TA = +85°C
40
35 TA = +25°C
30
25
20 TA = -40°C
15
10
-15 -10
-5 0 5
VCOM (V)
10 15
SWITCH ON-RESISTANCE vs. VCOM
(SINGLE +15V SUPPLY)
100
MAX4554/MAX4556
SENSE & GUARD
ON-LEAKAGE CURRENT
vs. TEMPERATURE
100
V+ = 15V,
V- = -15V,
10 VCOM = 10V
1 FORCE
10 MAX4555 SENSE
FORCE
0.1
0.01
0.001
SENSE & GUARD
1
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
VCOM (V)
OFF-LEAKAGE CURRENT
vs. TEMPERATURE
100
V+ = 15V,
V- = -15V,
10 VNC OR VNO = ±10V
VCOM = 10V
1
0.1 FORCE
0.01
0.001
SENSE & GUARD
0.0001
-50 -25
0 25 50 75 100 125
TEMPERATURE (°C)
0.0001
-50 -25
0 25 50 75 100 125
TEMPERATURE (°C)
MAX4554
CHARGE INJECTION vs. VCOM
(+20V, -10V SUPPLIES)
100
80 FORCE
60
40
20
0 SENSE & GUARD
-20
-40
-10
-5
0 5 10 15 20
VCOM (V)
______________________________________________________________________________________ 11
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| Páginas | Total 28 Páginas | |
| PDF Descargar | [ Datasheet MAX4556.PDF ] | |
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