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General Description
The MAX4626/MAX4627/MAX4628 are low-on-resis-
tance, low-voltage, single-pole/single-throw (SPST)
analog switches that operate from a +1.8V to +5.5V sin-
gle supply. The MAX4626 is normally open (NO), and
the MAX4627 is normally closed (NC). The MAX4628 is
normally open (NO) and has two control inputs. These
devices also have fast switching speeds (t
ON
= 50ns
max, t
OFF
= 30ns max).
When powered from a +5V supply, the MAX4626/
MAX4627/MAX4628 offer 0.5
max on-resistance
(R
ON
) with 0.1
max R
ON
flatness, and their digital
logic inputs are TTL compatible. These switches also
feature overcurrent protection to prevent device dam-
age from short circuits and excessive loads.
The MAX4626 is pin compatible with the MAX4514, and
the MAX4627 is pin compatible with the MAX4515. The
MAX4626/MAX4627 are available in SOT23-5 pack-
ages; the MAX4628 is available in a SOT23-6 package.
Applications
Power Routing
Battery-Operated Equipment
Audio and Video Signal Routing
Low-Voltage Data-Acquisition Systems
Communications Circuits
PCMCIA Cards
Cellular Phones
Modems
Hard Drives
Features
o Low R
ON
0.5
max (+5V Supply)
0.9
max (+3V Supply)
o 0.1 max R
ON
Flatness (+5V Supply)
o Overcurrent Protection
o Single-Supply Operation (+1.8V to +5.5V)
o Available in SOT23 Packages
o Fast Switching: t
ON
= 50ns max, t
OFF
= 30ns max
o TTL-Logic Compatible at +5V
o Pin Compatible with MAX4514 (MAX4626)
Pin Compatible with MAX4515 (MAX4627)
MAX4626/MAX4627/MAX4628
0.5
, Low-Voltage, Single-Supply
SPST Analog Switches
________________________________________________________________ Maxim Integrated Products
1
TOP VIEW
NO
IN
SWITCHES SHOWN FOR LOGIC "0" INPUT.
GND
1
5
V+
COM
SOT23-5
2
3
4
MAX4626
LOGIC
0
1
SWITCH
OFF
ON
NC
IN
GND
1
5
V+
COM
SOT23-5
2
3
4
NO
GND
1
6
V+
5
IN
COM
SOT23-6
2
3
4
MAX4626
MAX4627
MAX4628
MAX4627
LOGIC
0
1
SWITCH
ON
OFF
IN
SWITCH
OFF
ON
OFF
OFF
IN
0
1
0
1
0
0
1
1
MAX4628
IN
19-1633; Rev 0; 1/00
PART
MAX4626EUK-T
MAX4627EUK-T
-40°C to +85°C
-40°C to +85°C
TEMP. RANGE
PIN-
PACKAGE
5 SOT23-5
5 SOT23-5
Pin Configurations/Functional Diagrams/Truth Tables
Ordering Information
TOP
MARK
ADMJ
ADMK
MAX4628EUT-T
-40°C to +85°C
AADN
6 SOT23-6
MAX4626/MAX4627/MAX4628
0.5
, Low-Voltage, Single-Supply
SPST Analog Switches
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS--Single +5V Supply
(V+ = +5V ±10%, GND = 0, V
INH
= 2.4V, V
INL
= 0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.) (Notes 2, 3)
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Voltages Referenced to GND
V+, IN, IN..................................................................-0.3V to +6V
NO, NC, COM (Note 1).................................-0.3V to (V+ + 0.3V)
Continuous Current NO, NC to COM .............................±400mA
Peak Switch Current NO, NC to COM
(pulsed at 1ms, 10% duty cycle max) ........................ ±800mA
Continuous Power Dissipation (T
A
= 70°C)
5-Pin SOT23-5 (derate 7.1mW/°C above +70°C) ..........571mW
6-Pin SOT23-6 (derate 7.1mW/°C above +70°C) ..........571mW
Operating Temperature Range
MAX462_EU_ ....................................................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................ +300°C
Note 1: Signals on NC, NO, or COM exceeding V+ or GND are clamped by internal diodes.
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
Analog Signal Range
V
COM
, V
NO
,
V
NC
0
V+
V
0.35
0.5
On-Resistance
R
ON
T
A
= +25°C
0.6
0.05
0.10
On-Resistance Flatness
(Note 4)
R
FLAT(ON)
V+ = 4.5V; V
COM
= 0, 1V,
2V; I
COM
= 100mA
T
A
= +25°C
0.10
-2
0.2
2
NO or NC Off-Leakage
Current
I
NO(OFF)
,
I
NC(OFF)
T
A
= +25°C
-20
20
nA
-2
0.2
2
COM Off-Leakage
Current
I
COM(OFF)
T
A
= +25°C
-20
20
nA
COM On-Leakage
Current
-4
0.3
4
I
COM(ON)
T
A
= +25°C
-40
40
nA
Overcurrent-Protection
Threshold Current
T
A
= +25°C
2.4
A
T
A
= +25°C
40
50
Turn-On Time
t
ON
V
NO
or V
NC
= 3V, Figure 2
T
A
= T
MIN
to T
MAX
60
ns
T
A
= +25°C
18
30
Turn-Off Time
t
OFF
V
NO
or V
NC
= 3V, Figure 2
T
A
= T
MIN
to T
MAX
40
ns
T
A
= T
MIN
to T
MAX
T
A
= T
MIN
to T
MAX
T
A
= T
MIN
to T
MAX
T
A
= T
MIN
to T
MAX
CONDITIONS
T
A
= T
MIN
to T
MAX
V+ = 5.5V; V
COM
= 1V, 4.5V;
V
NO
or V
NC
= 4.5V, 1V
V+ = 5.5V; V
COM
= 1V, 4.5V;
V
NO
or V
NC
= 4.5V, 1V
V+ = 5.5V; V
COM
= 1V, 4.5V;
V
NO
or V
NC
= 1V, 4.5V, or
floating
V+ = 4.5V,
V
NO
or V
NC
= 3.5V,
I
COM
= 100mA
Charge Injection
Q
C
L
= 1.0nF, V
GEN
= 0, R
GEN
= 0, T
A
= +25°C, Figure 3
40
pC
Off-Isolation (Note 5)
OIRR
R
L
= 50
, C
L
= 5pF, f = 1MHz, T
A
= +25°C, Figure 4
-51
dB
COM Off-Capacitance
C
COM(OFF)
f = 1MHz, T
A
= +25°C, Figure 5
65
pF
COM On-Capacitance
C
COM(ON)
f = 1MHz, T
A
= +25°C, Figure 5
130
pF
NC or NO Off-
Capacitance
C
OFF
f = 1MHz, T
A
= +25°C, Figure 5
65
pF
DYNAMIC
ANALOG SWITCH
MAX4626/MAX4627/MAX4628
0.5
, Low-Voltage, Single-Supply
SPST Analog Switches
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS--Single +3V Supply
(V+ = +2.7V to +3.6V, GND = 0, V
INH
= 2.0V, V
INL
= 0.6V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.) (Notes 2, 3)
V
0
V+
V
COM
, V
NO
,
V
NC
Analog Signal Range
CONDITIONS
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
V
2.0
V
INH
Input Voltage High
µA
-1
1
I
IN
Logic Input Current
ELECTRICAL CHARACTERISTICS--Single +5V Supply (continued)
(V+ = +5V ±10%, GND = 0, V
INH
= 2.4V, V
INL
= 0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.) (Notes 2, 3)
0.9
0.4
0.8
V+ = 2.7V,
V
NO
or V
NC
= 1.5V,
I
COM
= 100mA
R
ON
On-Resistance
T
A
= +25°C
T
A
= T
MIN
to T
MAX
0.1
R
FLAT(ON)
On-Resistance Flatness
(Note 4)
V+ = 2.7V; I
COM
= 100mA;
V
NO
or V
NC
= 0, 0.75V, 1.5V; T
A
= +25°C
ns
65
80
V
NO
or V
NC
= 1.5V,
Figure 2
t
ON
Turn-On Time
90
ns
22
40
V
NO
or V
NC
= 1.5V,
Figure 2
t
OFF
Turn-Off Time
50
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
µA
10
V+ = 5.5V, V
IN
= 0 or V+
I+
Positive Supply Current
V
1.8
5.5
V+
Power-Supply Range
µA
-1
1
I
IN
Logic Input Current
V
2.4
V
INH
Input Voltage High
V
0.8
V
INL
Input Voltage Low
CONDITIONS
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
LOGIC INPUT
SUPPLY
Note 2: The algebraic convention, where the most negative value is a minimum and the most positive value a maximum, is used in
this data sheet.
Note 3: SOT-packaged parts are 100% tested at +25°C. Limits across the full temperature range are guaranteed by design and
correlation.
Note 4: Flatness is defined as the difference between the maximum and minimum values of on-resistance as measured over the
specified analog signal range.
Note 5: Off-Isolation = 20log
10
[V
COM
/ (V
NC
or V
NO
)], V
COM
= output, V
NC
or V
NO
= input to off switch.
pC
30
C
L
= 1.0nF, Figure 3, V
GEN
= 0, R
GEN
= 0,
Ta = +25°C
Q
Charge Injection
V
0.6
V
INL
Input Voltage Low
µA
10
V = +3.6V, V
IN
= 0
I+
Positive Supply Current
ANALOG SWITCH
DYNAMIC
LOGIC INPUT
SUPPLY
t
OFF
t
ON
0
20
40
80
60
100
-40
0
-20
20
60
40
80
TURN-ON/OFF TIMES
vs. TEMPERATURE
MAX4626/7/8-04
TEMPERATURE (°C)
t
ON/
t
OFF
(ns)
V+ = 5V
V
NO
or V
NC
= 3V
0.001
0.01
0.1
1
10
ON/OFF-LEAKAGE CURRENT
vs. TEMPERATURE
MAX4626/7/805
TEMPERATURE (°C)
ON/OFF-LEAKAGE (nA)
-40
20
40
-20
0
60
80
100
0
20
60
40
100
80
120
0
1
2
3
4
5
CHARGE INJECTION vs. COM VOLTAGE
MAX4626/7/8-06
V
COM
(V)
Q (pC)
0
-90
30k 100k
1M
10M
100M
FREQUENCY RESPONSE
-80
MAX4626/7/8-07
FREQUENCY (Hz)
LOSS (dB)
PHASE (degrees)
-30
-40
-50
-60
-70
-20
-10
V+ = 5V
50
= IN/OUT
OFF-ISOLATION
ON-LOSS
ON-PHASE
10
0
-10
-20
-30
-40
-50
-60
-70
-80
0
0.5
1.0
2.0
1.5
2.5
2
3
4
5
6
LOGIC THRESHOLD VOLTAGE
vs. SUPPLY VOLTAGE
MAX4626/7/8-08
SUPPLY VOLTAGE (V)
LOGIC THRESHOLD VOLTAGE (V)
VIN RISING
VIN FALLING
MAX4626/MAX4627/MAX4628
0.5
, Low-Voltage, Single-Supply
SPST Analog Switches
4
_______________________________________________________________________________________
Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
0
1.0
0.5
2.0
1.5
2.5
3.0
0
2
1
3
4
5
ON-RESISTANCE vs. COM VOLTAGE
OVER SUPPLY VOLTAGE
MAX4626/7/801
V
COM
(V)
R
ON
(
)
I
COM
= 100mA
V
CC
=
+1.8V
V
CC
=
+2.0V
V
CC
=
+2.3V
V
CC
=
+2.5V
V
CC
=
+3.0V
V
CC
=
+5V
0
0.2
0.1
0.4
0.3
0.5
0.6
0
2
1
3
4
5
ON-RESISTANCE vs. COM VOLTAGE
OVER TEMPERATURE
MAX4626/7/8-02
V
COM
(V)
R
ON
(
)
V + = 5V
I
COM
= 100mA
T
A
= +85°C
T
A
= -40°C
T
A
= -55°C
T
A
= +25°C
T
A
= +105°C
TURN-ON/OFF TIMES
vs. SUPPLY VOLTAGE
0
10
30
20
50
40
60
2
3
4
5
6
MAX4626/7/8-03
V
SUPPLY
(V)
t
ON/
t
OFF
(ns)
t
OFF
t
ON
MAX4626/MAX4627/MAX4628
0.5
, Low-Voltage, Single-Supply
SPST Analog Switches
_______________________________________________________________________________________
5
10
1k
100
10k
100k
TOTAL HARMONIC DISTORTION
vs. FREQUENCY
MAX4626/7/8-09
FREQUENCY (Hz)
THD (%)
0.1
0.001
0.01
3A
0
0
3V
OVERCURRENT RESPONSE
MAX4626/7/810
V
COM
2V/div
I
COM
1A/div
500
µs/div
Typical Operating Characteristics (continued)
(T
A
= +25°C, unless otherwise noted.)
Pin Description
1
2
3
4
--
5
MAX4626
--
1
--
3
4
2
5
MAX4627
--
MAX4628
4
IN
Inverted Digital Control Input (see MAX4628 Truth Table)
NAME
FUNCTION
1
COM
Analog Switch--Common
2
NO
Analog Switch--Normally Open
3
GND
Ground
5
IN
Digital Control Input
--
NC
Analog Switch--Normally Closed
6
V+
Positive Supply Input
PIN
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