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MAX4646EUT+T

P1-P3P4-P6P7-P9P10-P11
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
MAX4645/MAX4646
Fast, Low-Voltage, 2.5Ω, SPST,
CMOS Analog Switches
_______________________________________________________________________________________ 5
-10
0
10
20
30
40
50
60
70
012345
SUPPLY CURRENT vs. SUPPLY VOLTAGE
AND TEMPERATURE
MAX4645/6-04
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (nA)
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C
0
4
2
8
6
10
12
-40 0 20-20 40 60 10080
TURN-ON/TURN-OFF TIME
vs. TEMPERATURE
MAX4645/6-05
TEMPERATURE (°C)
t
ON
/t
OFF
(ns)
t
ON
t
OFF
V
COM
= 3V
V+ = 5V
0
2
1
4
3
5
6
7
8
1.0 2.0 2.51.5 3.0 3.5 4.0 4.5 5.0
TURN-ON/TURN-OFF TIME
vs. V
COM
MAX4645/6-06
V
COM
(V)
t
ON
/t
OFF
(ns)
t
ON
t
OFF
V+ = 5V
0
4
2
8
6
10
12
021 345
ON-RESISTANCE vs. V
COM
AND SUPPLY VOLTAGE
MAX4645/6-01
V
COM
(V)
R
ON
(Ω)
V+ = 1.8V
V+ = 2.5V
V+ = 3V
V+ = 5V
0
0.5
1.5
1.0
2.0
2.5
021345
ON-RESISTANCE vs. V
COM
AND TEMPERATURE
MAX4645/6-02
V
COM
(V)
R
ON
(Ω)
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C
V+ = 4.5V
__________________________________________Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
021 345
CHARGE INJECTION vs. V
COM
MAX4645/6-07
V
COM
(V)
CHARGE INJECTION (pC)
V+ = 5V
V+ = 3V
30
25
20
15
10
5
0
-5
-20
-15
-10
0.016
0.014
0.012
0.010
0.008
0.006
0.004
0.002
0
0.01 1 100.1 100
MAX4645/6-08
FREQUENCY (kHz)
THD (%)
TOTAL HARMONIC DISTORTION
vs. FREQUENCY
INPUT IMPEDANCE = 600Ω
f = 20Hz TO 50kHz
0
-100
0.1 1 10 100 1000
FREQUENCY RESPONSE
-80
MAX4645/6-09
FREQUENCY (MHz)
RESPONSE (dB)
-60
-40
-20
-30
-50
-70
-90
-10
V+ = 5V
50Ω IN AND OUT
ON-LOSS
OFF-LOSS
MAX4645/MAX4646
Fast, Low-Voltage, 2.5Ω, SPST,
CMOS Analog Switches
6 _______________________________________________________________________________________
Detailed Description
The MAX4645/MAX4646 are low 2.5Ω max on-resis-
tance (at V+ = 5V), low-voltage analog switches that
operate from a +1.8V to +5.5V single supply. CMOS
switch construction allows processing analog signals
that are within the supply voltage range (GND to V+).
Applications Information
Proper power-supply sequencing is recommended for
all CMOS devices. Do not exceed the absolute maxi-
mum ratings because stresses beyond the listed rat-
ings can cause permanent damage to the devices.
Always sequence V+ on first, followed by the logic
inputs, NO, or COM. If power-supply sequencing is not
possible, add two small signal diodes (D1, D2) in series
with the supply pins for overvoltage protection (Figure
1). Adding these diodes reduces the analog signal by
one diode drop below V+ and one diode drop above
GND, but does not affect the low switch resistance and
low leakage characteristics of the device. Device oper-
ation is unchanged, and the difference between V+ and
GND should not exceed 6V.
Although it is not required, power-supply bypassing
improves noise margin and prevents switching noise
from propagating from the V+ supply to other compo-
nents. A 0.1µF capacitor, connected from V+ to GND,
is adequate for most applications.
Pin Description
POSITIVE SUPPLY
COM
NO
GND
V
g
V+
MAX4645
MAX4646
D2
D1
Figure 1. Overvoltage Protection Using Two External Blocking
Diodes
V+
COM
NO
NC
GND
IN
N.C.5
6
SOT23-6
2
—
3
4
1
4
µMAX
1
—
8
7
6
2, 3, 5—
5
SOT23-5
—
2
3
4
1
2, 3, 5
4
µMAX
8
—
7
6
1
—
5 6
SOT23-5 SOT23-6
Positive Supply Voltage
1 Analog Switch Common Terminal
2 — Analog Switch Normally Open Terminal
— 2 Analog Switch Normally Closed Terminal
3 3 Ground
4 4 Logic Control Input
1
5 No Connection. Not internally connected.
MAX4646MAX4645
NAME
PIN
FUNCTION
P1-P3P4-P6P7-P9P10-P11

MAX4646EUT+T

Mfr. #:
Buy MAX4646EUT+T
Manufacturer:
Maxim Integrated
Description:
Analog Switch ICs Fast, Low-Voltage, 2.5 Ohm, SPST, CMOS Analog Switches
Lifecycle:
New from this manufacturer.
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