Datasheet
MAX4645/MAX4646
Fast, Low-Voltage, 2.5Ω, SPST,
CMOS Analog Switches
4 _______________________________________________________________________________________
Note 2: The algebraic convention, where the most negative value is a minimum and the most positive value is a maximum, is used
in this data sheet.
Note 3: SOT packages are 100% production tested at +25°C. Limits at the maximum rated temperature are guaranteed by
correlation.
Note 4: Flatness is defined as the difference between the maximum and the minimum value of on-resistance as measured over the
specified analog signal ranges.
Note 5: Guaranteed by design.
Note 6: Leakage parameters are 100% tested at +85°C and guaranteed by correlation at +25°C.
Note 7: Off-Isolation = 20log
10
(V
COM /
V
NO
), V
COM
= output, V
NO
= input to off switch.
ELECTRICAL CHARACTERISTICS—Single +3V Supply (continued)
(V+ = 2.7V to 3.3V, V
IH
= 2.0V, V
IL
= 0.4V, T
A
= T
MIN
to T
MAX
, unless otherwise specified.) (Notes 2, 3)
-75
T
A
= +25°C
Turn-Off Time (Note 5) t
OFF
810
ns
T
A
= +25°C
V
IN
_ = 0.4V or 2.0V
V
NO
= V
NC
= 1V
RMS
,
R
L
= 50Ω, C
L
= 5pF,
f = 1MHz, Figure 4
T
A
= +25°C
PARAMETER SYMBOL MIN TYP MAX
1.0
UNITS
Positive Supply Current I+
0.0001
µA
V+ = 3.3V, V
IN
= 0 or V+,
all channels on or off
CONDITIONS
T
A
= T
MIN
to T
MAX
T
A
= +25°C
Off-Isolation (Note 7) V
ISO
-55
dB
V
NO
= V
NC
= 1V
RMS
,
R
L
= 50Ω, C
L
= 5pF,
f = 10MHz, Figure 4
COM On-Capacitance C
COM
38
pF
V
COM
= V
NO
, V
NC
= GND,
f = 1MHz, Figure 5
COM Off-Capacitance C
COM
17
pF
V
COM
= GND, f = 1MHz,
Figure 5
NO or NC Capacitance C
OFF
17
pF
V
NO
, V
NC
= GND,
f = 1MHz, Figure 5
Charge Injection Q
4
pC
V
GEN
= 1.5V, C
L
= 1.0nF,
R
GEN
= 0, Figure 3
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
Turn-On Time (Note 5) t
ON
12 15
ns
V
NO
, V
NC
= 2.0V,
R
L
= 300Ω,C
L
= 35pF,
Figure 2
V
NO
, V
NC
= 2.0V,
R
L
= 300Ω,C
L
= 35pF,
Figure 2
Logic Input Current I
IN
-1 0.005 1
µA
13
Input Logic Low V
IL
0.4
V
T
A
= T
MIN
to T
MAX
Input Logic High V
IH
2.0
V
20
T
A
= T
MIN
to T
MAX
LOGIC INPUT
SWITCH DYNAMIC CHARACTERISTICS
POWER SUPPLY