Datasheet

MAX4554/MAX4555/MAX4556
Force-Sense Switches
_______________________________________________________________________________________ 9
ELECTRICAL CHARACTERISTICS—MAX4556 (±15V Supplies) (continued)
(V+ = +15V, V- = -15V, VL = 5V, GND = 0V, V
IN_H
= 2.4V, V
IN_L
= 0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values
are at T
A
= +25°C.)
SWITCH DYNAMIC CHARACTERISTICS
LOGIC INPUT
60Ω ANALOG SWITCH (SENSE-GUARD)
dB
R
IN
= 50Ω, R
OUT
= 50Ω, f = 1MHz,
V
COM_
= 100mV
RMS
, Figure 15
V
ISO
Off Isolation (Force) +25°C -30
%THD
Total Harmonic Distortion
(Force)
+25°C 0.007
+25°C
+25°C
C, E
+25°C
C, E
+25°C
36 60
On-Resistance Match
(Note 4)
5 9
∆R
ON
10
Ω
On-Resistance Flatness
(Note 5)
0.6 5
R
FLAT(ON)
6
Ω
NO_, NC Off-Leakage
Current
-0.25 0.01 0.25
V
COM_
= ±10V, I
COM_
= 10mA
V
COM_
= +5V, 0V, -5V;
I
COM_
= 10mA
T
A
pF
V
COM_
= GND, f = 1MHz,
Figure 14
C
ON
C, E
COM_ On-Capacitance
(Sense-Guard)
+25°C
NO_, NC_ Off-Capacitance
(Sense-Guard)
C
OFF
30
pF
PARAMETER SYMBOL
MIN TYP MAX
(Note 2)
UNITS
V
NO_,
V
NC_
= GND; f = 1MHz;
Figure 14
+25°C 7
pF
V
COM1
= GND, f = 1MHz,
Figure 14
C
ON
COM1 On-Capacitance
(Force)
+25°C
NO1, NC1 Off-Capacitance
(Force)
C
OFF
137
pF
V
NO1,
V
NC1
= GND; f = 1MHz;
Figure 14
+25°C 21
Break-Before-Make Time t
BBM
C, E
On-Resistance R
ON
70
nsV
COM_
= ±10V, R
L
= 1kΩ, Figure 12 +25°C
Analog Signal Range
V
COM_
,
V
NO_
, V
NC_
V- V+ V
1 15
C, E
Transition Time
(Sense-Guard)
t
TRANS
275
C, E
Transition Time (Force) t
TRANS
300
ns
V
COM_
= ±10V, R
L
= 300Ω,
Figure 10
+25°C
ns
V
COM_
= ±10V, R
L
= 1kΩ,
Figure 10
150 250
+25°C 125 225
C, E
IN_ Input Current Logic
High or Low
I
IN_H
,
I
IN_L
-0.5 0.03 0.5 µA
C, E
+25°C
C, E
+25°C
V
IN_
= 0 or VL
C, E
Ω
I
COM_(OFF)
-2.5 2.5
nA
COM_ On-Leakage Current
IN_ Input Logic Threshold
Low
-0.5 0.02 0.5
V
IN_L
V
COM_
= ±10V, I
COM_
= 10mA
I
COM_(ON)
-5.0 5.0
nA
Charge Injection Q 5 pC
0.8 1.6 V
C, E
CONDITIONS
IN_ Input Logic Threshold
High
V
IN_H
1.6 2.4 V
V+ = 16.5V; V- = -16.5V;
V
COM_
= ±10V; V
NO_,
V
NC_
= 10V
V+ = 16.5V, V- = -16.5V,
V
COM_
= ±10V
V
COM_
= 0, Figure 13
C, E
+25°C
COM_ Off-Leakage Current
I
NO_(OFF)
,
I
NC_(OFF)
-2.5 2.5
(Note 3)
nA
-0.25 0.01 0.25
V+ = 16.5V; V- = -16.5V;
V
COM_
= ±10V; V
NO_,
V
NC_
= 10V
±
±