19-1713; Rev 0; 4/00
2Ω, Quad, SPST, CMOS Analog Switches
General Description
The MAX4677/MAX4678/MAX4679 quad analog switch-
es feature 1.6Ω max on-resistance (R
ON
) when operat-
ing from a dual ±5V supply. R
ON
is matched between
channels to 0.3Ω max and is flat (0.4Ω max) over the
specified signal range. Each switch can handle Rail-to-
Rail
®
analog signals. Off-leakage current is 0.1nA at
+25°C. These switches are ideal in low-distortion appli-
cations and are the preferred solution over mechanical
relays in automated test equipment. They have low
power requirements, require less board space, and are
more reliable than mechanical relays.
The MAX4677 has four normally closed (NC) switches,
and the MAX4678 has four normally open (NO) switch-
es. The MAX4679 has two NC and two NO switches
and features guaranteed break-before-make switching.
The MAX4677/MAX4678/MAX4679 operate from either
a single +2.7V to +11V or dual ±2.7V to ±5.5V supplies,
making them ideal for use in digital card applications
and single-ended 75Ω systems.
These devices feature a separate logic supply input
that operates from +2.7V to V+, allowing independent
logic and analog supplies.
o
On-Resistance 1.6Ω max
o
On-Resistance Flatness 0.4Ω max
o
On-Resistance Matching 0.3Ω max
o
Dual ±2.7V to ±5.5V or Single +2.7V to +11V
Supply Range
o
TTL/CMOS-Logic Compatible
o
Crosstalk -84dB at 1MHz
o
Off-Isolation -65dB at 1MHz
o
-3dB Bandwidth: 66MHz
o
Rail-to-Rail Signal Range
Features
MAX4677/MAX4678/MAX4679
Ordering Information
PART
MAX4677EUE
MAX4677EPE
MAX4678EUE
MAX4678EPE
MAX4679EUE
MAX4679EPE
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
16 TSSOP
16 DIP
16 TSSOP
16 DIP
16 TSSOP
16 DIP
________________________Applications
Reed Relay Replacement
Test Equipment
Communications Systems
Audio Signal Routing
Avionics
ADC Systems
Data-Acquisition Systems
PBX/PABX Systems
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
______________________Pin
Configurations/Functional Diagrams/Truth Tables
TOP VIEW
IN1
1
COM1
2
NC1
3
V-
4
GND
5
NC4
6
COM4
7
IN4
8
DIP/TSSOP
MAX4677
LOGIC
SWITCH
0
1
ON
OFF
16
15
14
13
IN2
COM2
NC2
V+
VL
NC3
COM3
IN3
IN1
1
COM1
2
NO1
3
V-
4
GND
5
NO4
6
COM4
7
IN4
8
DIP/TSSOP
MAX4678
16
15
14
IN2
COM2
NO2
IN1
1
COM1
2
NO1
3
V-
4
GND
5
NO4
6
COM4
7
IN4
8
DIP/TSSOP
LOGIC
0
1
MAX4679
SWITCHES
1, 4
OFF
ON
16
15
14
IN2
COM2
NC2
13
V+
12
VL
11
NO3
10
COM3
9
13
V+
MAX4677
12
11
10
9
MAX4679
12
VL
11
NC3
10
COM3
9
IN3
IN3
MAX4678
LOGIC
SWITCH
0
1
OFF
ON
SWITCHES
2, 3
ON
OFF
SWITCHES SHOWN FOR LOGIC "0" INPUT
________________________________________________________________
Maxim Integrated Products
1
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
2Ω, Quad, SPST, CMOS Analog Switches
MAX4677/MAX4678/MAX4679
ABSOLUTE MAXIMUM RATINGS
V+ to GND ..............................................................-0.3V to +12V
V- to GND ...............................................................+0.3V to -12V
V+ to V- ................................................................................+12V
V
L
, IN_ to GND (Note 1) ...............................-0.3V to (V+ + 0.3V)
V
COM_,
V
NC_,
V
NO_
(Note 1)............................................V- to V+
Current (any terminal).......................................................±50mA
Continuous Current (COM_, NC_, NO_).........................±100mA
Peak Current (COM_, NC_, NO_
pulsed at 1ms 10% duty cycle) .................................±200mA
Continuous Power Dissipation (T
A
= +70°C)
16-Pin Plastic DIP (derate 10.5mW/°C above +70°C)..842mW
16-Pin TSSOP (derate 5.7mW/°C above +70°C)..........457mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
Note 1:
Signals on NC_, NO_, COM_, or IN_ exceeding V+ or V- are clamped by internal diodes. Limit forward diode current to
maximum current rating.
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.
ELECTRICAL CHARACTERISTICS–Dual Supplies
(V+ = +5V ±10%, V- = -5V ±10%, V
L
= +2.7V to V+, GND = 0, V
IH
= +2.4V, V
IL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Typical values are at T
A
= +25°C.) (Note 2)
PARAMETER
ANALOG SWITCH
Input Voltage Range
V
COM
_,
V
NO
_, V
NC
_
R
ON
V+ = 4.5V, V- = -4.5V,
I
COM
_ = 50mA,
V
NO
_ or V
NC
_ = ±3.3V
V+ = 4.5V, V- = -4.5V,
I
COM
_ = 50mA, V
NO
_ or
V
NC
_ = ±3.3V
V+ = 4.5V, V- = -4.5V,
I
COM
_ = 50mA, V
NO
_ or
V
NC
_ = ±3.3V, 0
V+ = +5.5V, V- = -5.5V,
V
NO
_ or V
NC
_ = ±4.5V,
V
COM
_ = +4.5V
V+ = +5.5V, V- = -5.5V,
V
NO
_ or V
NC
_ = ±4.5V,
V
COM
_ = +4.5V
V+ = +5.5V, V- = -5.5V,
V
COM_
= ±4.5V,
V
NO
_ or V
NC
_ = ±4.5V or
floating
V
L
= V+
V
L
= V+
V
L
= V+
-1
0.005
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
-1
-10
-1
-10
-2
-25
0.2
0.1
0.1
0.2
0.2
V-
1.2
V+
1.6
2
0.3
0.5
0.4
0.5
1
nA
10
1
nA
10
2
nA
25
Ω
Ω
V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
On-Resistance
On-Resistance Match
Between Channels
(Note 3)
On-Resistance Flatness
(Note 4)
NC_ or NO_ Off-Leakage
Current (Note 5)
COM_ Off-Leakage
Current (Note 5)
Ω
∆R
ON
R
FLAT
I
N_(OFF)
ICOM_(OFF)
COM_ On-Leakage
Current (Note 5)
LOGIC INPUT
Input Logic High
Input Logic Low
Input Leakage Current
I
COM_(ON)
V
IH
V
IL
I
IN
2.4
0.8
1
V
V
µA
2
_______________________________________________________________________________________
2Ω, Quad, SPST, CMOS Analog Switches
ELECTRICAL CHARACTERISTICS–Dual Supplies (continued)
(V+ = +5V ±10%, V- = -5V ±10%, V
L
= +2.7V to V+, GND = 0, V
IH
= +2.4V, V
IL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Typical values are at T
A
= +25°C.) (Note 2)
PARAMETER
POWER SUPPLY
Positive Supply Voltage
Negative Supply Voltage
Logic Supply Voltage
Positive Supply Current
Negative Supply Current
Logic Supply Current
Ground Current
DYNAMIC
Turn-On Time
V+
V-
V
L
I+
I-
I
L
I
GND
IN_ = GND or V
L
IN_ = GND or V
L
IN_ = GND or V
L
IN_ = 0 or V+, V+ = 5.5V, V- = -5.5V
V+ = +4.5V, V- = -4.5V,
V
NC_
or V
NO
_= ±3.3V,
V
L
= V+, Figure 2
V+ = +4.5V, V- = -4.5V,
V
NC_
or V
NO
_ = ±3.3V,
V
L
= V+, Figure 2
+2.7
-2.7
2.7
0.001
+5.5
-5.5
V+
1
-1
1
1
V
V
V
µA
µA
µA
µA
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAX4677/MAX4678/MAX4679
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
5
200
350
ns
500
t
ON
110
150
ns
350
ns
Turn-Off Time
t
OFF
Break-Before-Make Delay
Charge Injection
Off-Isolation
Crosstalk
-3dB Bandwidth
NC or NO Off-
Capacitance
COM Off-Capacitance
On-Capacitance
t
BBM
Q
V
ISO
BW
C
(N_OFF)
C
(COMOFF)
C
(ON)
Figure 3, MAX4679 only, R
L
= 300Ω,
C
L
= 35pF
R
GEN
= 0, C
L
= 1nF, V
GEN
= 0, Figure 4
R
L
= 50Ω, C
L
= 5pF, f = 1MHz, Figure 5a
R
L
= 50Ω, C
L
= 5pF, f = 1MHz, Figure 6a
R
S
= 50Ω, R
L
= 50Ω, Figure 7a
f = 1MHz, Figure 8
f = 1MHz, Figure 8
f = 1MHz, Figure 8
85
-65
-84
66
85
85
350
pC
dB
dB
MHz
pF
pF
pF
_______________________________________________________________________________________
3
2Ω, Quad, SPST, CMOS Analog Switches
MAX4677/MAX4678/MAX4679
ELECTRICAL CHARACTERISTICS–Single Supply
(V+ = +5V ±10%, V- = 0, V
L
= +2.7V to V+, GND = 0, V
IH
= +2.4V, V
IL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical
values are at T
A
= +25°C.) (Note 2)
PARAMETER
ANALOG SWITCH
Input Voltage Range
On-Resistance
On-Resistance Match
Between Channels
(Note 3)
On-Resistance Flatness
(Note 4)
NC_ or NO_ Off-
Leakage Current
(Note 5)
COM_ Off-Leakage
Current (Note 5)
COM_ On-Leakage
Current (Note 5)
LOGIC INPUT
Input Low Voltage
Input High Voltage
Input Leakage Current
POWER SUPPLY
Positive Supply Voltage
Logic Supply Voltage
Positive Supply Current
Logic Supply Current
Ground Current
DYNAMIC
Turn-On Time
t
ON
V
L
= V+, V+ = +4.5V; V
NC
_
or V
NO_
= 3.3V, R
L
= 300Ω,
C
L
= 35pF, Figure 2
V
L
= V+, V+ = +4.5V; V
NC
_
or V
NO_
= 3.3V, R
L
= 300Ω,
C
L
= 35pF, Figure 2
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
120
600
1000
ns
1400
165
ns
400
V+
V
L
l+
I
L
I
GND
V
IN_
= 0 or V
L,
V
L
= V+
V
IN_
= 0 or V
L
, V+ = 5.5V
V
IN_
= 0 or V
L,
V+ = 5.5V
1
2.7
2.7
1
6
V+
1
1
10
V
V
µA
µA
µA
V
IL
V
IH
I
IN
V
L
= V+
V
L
= V+
V
L
= V+
2.4
-1
0.005
1
0.8
V
V
µA
V
COM
_,
V
NO
_, V
NC
_
R
ON
V+ = +4.5V, I
COM
_ = 50mA,
V
NO
_ or V
NC
_ = 3.3V
V+ = +4.5V, I
COM
_ = 50mA,
V
NO
_ or V
NC
_ = 3.3V
V+ = +4.5V, I
COM
_ = 50mA,
V
NO
_ or V
NC
_ = 3.3V, 1.5V
V+ = +5.5V;
V
NO
_ or V
NC
_ = 4.5V, 1V;
V
COM
_ = 1V, 4.5V
V+ = +5.5V;
V
NO
_ or V
NC
_ = 4.5V, 1V;
V
COM
_ = 1V, 4.5V
V+ = +5.5V; V
COM
_ = 1V,
4.5V; V
NO
_ or V
NC
_ = 1V,
4.5V, or floating
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
-1
-10
-1
-10
-2
-25
0.2
0.1
0.1
0.15
0.05
0
1.8
V+
2.7
3.5
0.15
0.3
0.25
0.4
1
nA
10
1
nA
10
2
nA
25
Ω
V
Ω
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
∆R
ON
Ω
R
FLAT
I
N_(OFF)
I
COM_(OFF)
I
COM_(ON)
Turn-Off Time
t
OFF
4
_______________________________________________________________________________________
2Ω, Quad, SPST, CMOS Analog Switches
ELECTRICAL CHARACTERISTICS–Single Supply (continued)
(V+ = +5V ±10%, V- = 0, V
L
= +2.7V to V+, GND = 0, V
IH
= +2.4V, V
IL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical
values are at T
A
= +25°C.) (Note 2)
PARAMETER
Break-Before- Make
Delay
Charge Injection
Off-Isolation
Crosstalk
-3dB Bandwidth
NC or NO Off-
Capacitance
COM Off-Capacitance
On-Capacitance
BW
C
(N_OFF)
C
(COMOFF)
C
(ON)
SYMBOL
t
BBM
Q
V
ISO
CONDITIONS
MAX4679 only, R
L
= 300Ω, C
L
= 35pF, Figure 3
R
GEN
= 0, C
L
= 1nF, V
GEN
= 0, Figure 4
R
L
= 50Ω, C
L
= 5pF, f = 1MHz, Figure 5b
R
L
= 50Ω, C
L
= 5pF, f = 1MHz, Figure 6b
R
S
= 50Ω, R
L
= 50Ω, Figure 7b
f = 1MHz, Figure 8
f = 1MHz, Figure 8
f = 1MHz, Figure 8
MIN
5
9
-65
-84
63
85
85
350
TYP
MAX
UNITS
ns
pC
dB
dB
MHz
pF
pF
pF
MAX4677/MAX4678/MAX4679
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:
∆R
ON =
R
ON(MAX) -
R
ON(MIN).
Note 4:
Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the
specified analog signal ranges.
Note 5:
Leakage parameters are 100% tested at maximum-rated hot operating temperature and the highest supply voltage, and
guaranteed by correlation at +25°C.
Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
ON-RESISTANCE vs. V
COM
(DUAL SUPPLY)
MAX4677/8/9-01
ON-RESISTANCE vs. V
COM
(SINGLE SUPPLY)
4.5
4.0
3.5
R
ON
(Ω)
3.0
2.5
2.0
V+ = 4V
V+ = 5V
V+ = 3V
R
ON
(Ω)
V- = 0
V+ = 2.5V
MAX4677/8/9-02
ON-RESISTANCE vs. V
COM
AND
TEMPERATURE (DUAL SUPPLIES)
MAX4677/8/9-03
2.0
1.8
1.6
1.4
R
ON
(Ω)
1.2
1.0
0.8
0.6
0.4
0.2
0
-5
-3
-1
1
3
5
V
COM
(V)
V± =
±3V
V± =
±4V
V± =
±5V
V± =
±2.5V
5.0
1.4
1.2
1.0
0.8
T
A
= -40°C
0.6
0.4
0.2
V+ = +5V
V- = -5V
V
L
= V+
-5
-4
-3
-2
-1
0
1
2
3
4
5
T
A
= +85°C
T
A
= +25°C
1.5
1.0
0.5
0
0
1
2
3
4
5
V
COM
(V)
V+ = 12V
V+ = 9V
0
V
COM
(V)
_______________________________________________________________________________________
5
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