MAXIM MAX4626, MAX4627, MAX4628 Technical data
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General Description
The MAX4626/MAX4627/MAX4628 are low-on-resistance, low-voltage, single-pole/single-throw (SPST)
analog switches that operate from a +1.8V to +5.5V single 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 (tON= 50ns
max, t
OFF
= 30ns max).
When powered from a +5V supply, the MAX4626/
MAX4627/MAX4628 offer 0.5Ω max on-resistance
(RON) with 0.1Ω max RONflatness, and their digital
logic inputs are TTL compatible. These switches also
feature overcurrent protection to prevent device damage 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 packages; 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
♦ Low R
ON
0.5Ω max (+5V Supply)
0.9Ω max (+3V Supply)
♦ 0.1Ω max RONFlatness (+5V Supply)
♦ Overcurrent Protection
♦ Single-Supply Operation (+1.8V to +5.5V)
♦ Available in SOT23 Packages
♦ Fast Switching: t
ON
= 50ns max, t
OFF
= 30ns max
♦ TTL-Logic Compatible at +5V
♦ Pin Compatible with MAX4514 (MAX4626)
Pin Compatible with MAX4515 (MAX4627)
MAX4626/MAX4627/MAX4628
0.5Ω, Low-Voltage, Single-Supply
SPST Analog Switches
________________________________________________________________ Maxim Integrated Products 1
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 AADN6 SOT23-6
TOP VIEW
GND
MAX4626
15V+COM
NO
2
3
SOT23-5
MAX4626
LOGIC
0
1
SWITCH
OFF
ON
MAX4627
15
COM
NC
2
SWITCH
ON
OFF
4
4
IN
3
GND
SOT23-5
MAX4627
LOGIC
0
1
SWITCHES SHOWN FOR LOGIC "0" INPUT.
COM
V+
NO
GND
IN
MAX4628
1
2
3
SOT23-6
MAX4628
SWITCH
IN
IN
1
0
1
1
0
0
0
1
OFF
OFF
OFF
6 V+
5 IN
4
IN
ON
MAX4626/MAX4627/MAX4628
0.5Ω, 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, TA= 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
, VNO,
V
NC
0V+V
0.35 0.5
On-Resistance R
ON
TA= +25°C
0.6
Ω
0.05 0.10
On-Resistance Flatness
(Note 4)
R
FLAT(ON)
V+ = 4.5V; V
COM
= 0, 1V,
2V; I
COM
= 100mA
TA= +25°C
0.10
Ω
-2 0.2 2
NO or NC Off-Leakage
Current
I
NO(OFF)
,
I
NC(OFF)
TA= +25°C
-20 20
nA
-2 0.2 2
COM Off-Leakage
Current
I
COM(OFF)
TA= +25°C
-20 20
nA
COM On-Leakage
Current
-4 0.3 4
I
COM(ON)
TA= +25°C
-40 40
nA
Overcurrent-Protection
Threshold Current
TA= +25°C 2.4 A
TA= +25°C 40 50
Turn-On Time t
ON
VNOor VNC= 3V, Figure 2
TA= T
MIN
to T
MAX
60
ns
TA= +25°C 18 30
Turn-Off Time t
OFF
VNOor VNC= 3V, Figure 2
TA= T
MIN
to T
MAX
40
ns
TA= T
MIN
to T
MAX
TA= T
MIN
to T
MAX
TA= T
MIN
to T
MAX
TA= T
MIN
to T
MAX
CONDITIONS
TA= T
MIN
to T
MAX
V+ = 5.5V; V
COM
= 1V, 4.5V;
VNOor VNC= 4.5V, 1V
V+ = 5.5V; V
COM
= 1V, 4.5V;
V
NO
or VNC= 4.5V, 1V
V+ = 5.5V; V
COM
= 1V, 4.5V;
V
NO
or VNC= 1V, 4.5V, or
floating
V+ = 4.5V,
VNOor VNC= 3.5V,
I
COM
= 100mA
Charge Injection Q CL= 1.0nF, V
GEN
= 0, R
GEN
= 0, TA= +25°C, Figure 3 40 pC
Off-Isolation (Note 5) OIRR RL= 50Ω, CL= 5pF, f = 1MHz, TA= +25°C, Figure 4 -51 dB
COM Off-Capacitance C
COM(OFF)
f = 1MHz, TA= +25°C, Figure 5 65 pF
COM On-Capacitance C
COM(ON)
f = 1MHz, TA= +25°C, Figure 5 130 pF
NC or NO OffCapacitance
C
OFF
f = 1MHz, TA= +25°C, Figure 5 65 pF
DYNAMIC
ANALOG SWITCH
MAX4626/MAX4627/MAX4628
0.5Ω, 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, TA= T
MIN
to T
MAX
, unless otherwise noted.) (Notes 2, 3)
V0V+
V
COM
, VNO,
V
NC
Analog Signal Range
CONDITIONS UNITSMIN TYP MAXSYMBOLPARAMETER
V2.0V
INH
Input Voltage High
µA-1 1I
IN
Logic Input Current
ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)
(V+ = +5V ±10%, GND = 0, V
INH
= 2.4V, V
INL
= 0.8V, TA= T
MIN
to T
MAX
, unless otherwise noted.) (Notes 2, 3)
0.9
Ω
0.4 0.8
V+ = 2.7V,
VNOor VNC= 1.5V,
I
COM
= 100mA
R
ON
On-Resistance
TA= +25°C
TA= T
MIN
to T
MAX
0.1 ΩR
FLAT(ON)
On-Resistance Flatness
(Note 4)
V+ = 2.7V; I
COM
= 100mA;
V
NO
or VNC= 0, 0.75V, 1.5V; TA= +25°C
ns
65 80
VNOor V
NC
= 1.5V,
Figure 2
t
ON
Turn-On Time
90
ns
22 40
VNOor V
NC
= 1.5V,
Figure 2
t
OFF
Turn-Off Time
50TA= T
MIN
to T
MAX
TA= +25°C
TA= T
MIN
to T
MAX
TA= +25°C
µA10V+ = 5.5V, VIN= 0 or V+I+Positive Supply Current
V1.8 5.5V+Power-Supply Range
µA-1 1I
IN
Logic Input Current
V2.4V
INH
Input Voltage High
V0.8V
INL
Input Voltage Low
CONDITIONS UNITSMIN TYP MAXSYMBOLPARAMETER
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[VCOM
/ (VNCor VNO)], V
COM
= output, VNCor VNO= input to off switch.
pC
30
CL= 1.0nF, Figure 3, V
GEN
= 0, R
GEN
= 0,
Ta = +25°C
QCharge Injection
V0.6V
INL
Input Voltage Low
µA10V = +3.6V, VIN= 0I+Positive Supply Current
ANALOG SWITCH
DYNAMIC
LOGIC INPUT
SUPPLY
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