General Description
The MAX4677/MAX4678/MAX4679 quad analog switch-
es feature 1.6
max on-resistance (R
ON
) when operat-
ing from a dual 5V supply. R
ON
is matched between
channels to 0.3
max and is flat (0.4 max) over the
specified signal range. Each switch can handle Rail-to-
Rail
analog signals. Off-leakage current is 0.1nA at
+25C. 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 75
systems.
These devices feature a separate logic supply input
that operates from +2.7V to V+, allowing independent
logic and analog supplies.
________________________Applications
Features
o On-Resistance 1.6 max
o On-Resistance Flatness 0.4 max
o On-Resistance Matching 0.3 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
MAX4677/MAX4678/MAX4679
2
, Quad, SPST, CMOS Analog Switches
________________________________________________________________ Maxim Integrated Products
1
SWITCHES SHOWN FOR LOGIC "0" INPUT
MAX4678
LOGIC
SWITCH
0
1
OFF
ON
TOP VIEW
DIP/TSSOP
MAX4677
LOGIC
SWITCH
0
1
ON
OFF
MAX4679
LOGIC
SWITCHES
1, 4
0
1
OFF
ON
SWITCHES
2, 3
ON
OFF
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
IN2
COM2
NC2
V+
V-
NO1
COM1
IN1
MAX4679
VL
NC3
COM3
IN3
IN4
COM4
NO4
GND
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
IN2
COM2
NC2
V+
V-
NC1
COM1
IN1
MAX4677
VL
NC3
COM3
IN3
IN4
COM4
NC4
GND
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
IN2
COM2
NO2
V+
V-
NO1
COM1
IN1
MAX4678
VL
NO3
COM3
IN3
IN4
COM4
NO4
GND
DIP/TSSOP
DIP/TSSOP
______________________Pin Configurations/Functional Diagrams/Truth Tables
19-1713; Rev 0; 4/00
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.
Ordering Information
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
PART
TEMP. RANGE
PIN-PACKAGE
MAX4677EUE
-40
C to +85C
16 TSSOP
MAX4677EPE
-40
C to +85C
16 DIP
MAX4678EUE
-40
C to +85C
16 TSSOP
MAX4678EPE
-40
C to +85C
16 DIP
MAX4679EUE
-40
C to +85C
16 TSSOP
MAX4679EPE
-40
C to +85C
16 DIP
Reed Relay Replacement
Test Equipment
Communications Systems
Audio Signal Routing
Avionics
ADC Systems
Data-Acquisition Systems
PBX/PABX Systems
MAX4677/MAX4678/MAX4679
2
, Quad, SPST, CMOS Analog Switches
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICSDual 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
= +25C.) (Note 2)
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.
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
= +70C)
16-Pin Plastic DIP (derate 10.5mW/C above +70C)..842mW
16-Pin TSSOP (derate 5.7mW/C above +70C)..........457mW
Operating Temperature Range ...........................-40C to +85C
Storage Temperature Range .............................-65C to +150C
Junction Temperature ......................................................+150C
Lead Temperature (soldering, 10s) .................................+300C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
ANALOG SWITCH
Input Voltage Range
V
COM
_,
V
NO
_, V
NC
_
V-
V+
V
T
A
= +25
C
1.2
1.6
On-Resistance
R
ON
V+ = 4.5V, V- = -4.5V,
I
COM
_
= 50mA,
V
NO
_ or V
NC
_ = 3.3V
T
A
= T
MIN
to T
MAX
2
T
A
= +25
C
0.2
0.3
On-Resistance Match
Between Channels
(Note 3)
R
ON
V+ = 4.5V, V- = -4.5V,
I
COM
_ = 50mA, V
NO
_ or
V
NC
_ = 3.3V
T
A
= T
MIN
to T
MAX
0.5
T
A
= +25
C
0.2
0.4
On-Resistance Flatness
(Note 4)
R
FLAT
V+ = 4.5V, V- = -4.5V,
I
COM
_
= 50mA, V
NO
_ or
V
NC
_ = 3.3V, 0
T
A
= T
MIN
to T
MAX
0.5
T
A
= +25
C
-1
0.1
1
NC_ or NO_ Off-Leakage
Current (Note 5)
I
N_(OFF)
V+ = +5.5V, V- = -5.5V,
V
NO
_ or V
NC
_ = 4.5V,
V
COM
_ = +4.5V
T
A
= T
MIN
to T
MAX
-10
10
nA
T
A
= +25
C
-1
0.1
1
COM_ Off-Leakage
Current (Note 5)
ICOM_(OFF)
V+ = +5.5V, V- = -5.5V,
V
NO
_ or V
NC
_ = 4.5V,
V
COM
_ = +4.5V
T
A
= T
MIN
to T
MAX
-10
10
nA
T
A
= +25
C
-2
0.2
2
COM_ On-Leakage
Current (Note 5)
I
COM_(ON)
V+ = +5.5V, V- = -5.5V,
V
COM_
= 4.5V,
V
NO
_ or V
NC
_ = 4.5V or
floating
T
A
= T
MIN
to T
MAX
-25
25
nA
LOGIC INPUT
Input Logic High
V
IH
V
L
= V+
2.4
V
Input Logic Low
V
IL
V
L
= V+
0.8
V
Input Leakage Current
I
IN
V
L
= V+
-1
0.005
1
A
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.
MAX4677/MAX4678/MAX4679
2
, Quad, SPST, CMOS Analog Switches
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICSDual 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
= +25C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
POWER SUPPLY
Positive Supply Voltage
V+
+2.7
+5.5
V
Negative Supply Voltage
V-
-2.7
-5.5
V
Logic Supply Voltage
V
L
2.7
V+
V
Positive Supply Current
I+
IN_ = GND or V
L
0.001
1
A
Negative Supply Current
I-
IN_ = GND or V
L
-1
A
Logic Supply Current
I
L
IN_ = GND or V
L
1
A
Ground Current
I
GND
IN_ = 0 or V+, V+ = 5.5V, V- = -5.5V
1
A
DYNAMIC
T
A
= +25
C
200
350
Turn-On Time
t
ON
V+ = +4.5V, V- = -4.5V,
V
NC_
or V
NO
_= 3.3V,
V
L
= V+, Figure 2
T
A
= T
MIN
to T
MAX
500
ns
T
A
= +25
C
110
150
Turn-Off Time
t
OFF
V+ = +4.5V, V- = -4.5V,
V
NC_
or V
NO
_
= 3.3V,
V
L
= V+, Figure 2
T
A
= T
MIN
to T
MAX
350
ns
Break-Before-Make Delay
t
BBM
Figure 3, MAX4679 only, R
L
= 300
,
C
L
= 35pF
5
ns
Charge Injection
Q
R
GEN
= 0, C
L
= 1nF, V
GEN
= 0, Figure 4
85
pC
Off-Isolation
V
ISO
R
L
= 50
, C
L
= 5pF, f = 1MHz, Figure 5a
-65
dB
Crosstalk
R
L
= 50
, C
L
= 5pF, f = 1MHz, Figure 6a
-84
dB
-3dB Bandwidth
BW
R
S
= 50
, R
L
= 50
, Figure 7a
66
MHz
NC or NO Off-
Capacitance
C
(N_OFF)
f = 1MHz, Figure 8
85
pF
COM Off-Capacitance
C
(COMOFF)
f = 1MHz, Figure 8
85
pF
On-Capacitance
C
(ON)
f = 1MHz, Figure 8
350
pF
MAX4677/MAX4678/MAX4679
2
, Quad, SPST, CMOS Analog Switches
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICSSingle 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
= +25C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
ANALOG SWITCH
Input Voltage Range
V
COM
_,
V
NO
_, V
NC
_
0
V+
V
T
A
= +25
C
1.8
2.7
On-Resistance
R
ON
V+ = +4.5V, I
COM
_
= 50mA,
V
NO
_ or V
NC
_
= 3.3V
T
A
= T
MIN
to T
MAX
3.5
T
A
= +25
C
0.05
0.15
On-Resistance Match
Between Channels
(Note 3)
R
ON
V+ = +4.5V, I
COM
_
= 50mA,
V
NO
_ or V
NC
_
= 3.3V
T
A
= T
MIN
to T
MAX
0.3
T
A
= +25
C
0.15
0.25
On-Resistance Flatness
(Note 4)
R
FLAT
V+ = +4.5V, I
COM
_
= 50mA,
V
NO
_ or V
NC
_ = 3.3V, 1.5V
T
A
= T
MIN
to T
MAX
0.4
T
A
= +25
C
-1
0.1
1
NC_ or NO_ Off-
Leakage Current
(Note 5)
I
N_(OFF)
V+ = +5.5V;
V
NO
_ or V
NC
_ = 4.5V, 1V;
V
COM
_ = 1V, 4.5V
T
A
= T
MIN
to T
MAX
-10
10
nA
T
A
= +25
C
-1
0.1
1
COM_ Off-Leakage
Current (Note 5)
I
COM_(OFF)
V+ = +5.5V;
V
NO
_ or V
NC
_ = 4.5V, 1V;
V
COM
_ = 1V, 4.5V
T
A
= T
MIN
to T
MAX
-10
10
nA
T
A
= +25
C
-2
0.2
2
COM_ On-Leakage
Current (Note 5)
I
COM_(ON)
V+ = +5.5V; V
COM
_ = 1V,
4.5V; V
NO
_ or V
NC
_ = 1V,
4.5V, or floating
T
A
= T
MIN
to T
MAX
-25
25
nA
LOGIC INPUT
Input Low Voltage
V
IL
V
L
= V+
0.8
V
Input High Voltage
V
IH
V
L
= V+
2.4
V
Input Leakage Current
I
IN
V
L
= V+
-1
0.005
1
A
POWER SUPPLY
Positive Supply Voltage
V+
2.7
6
V
Logic Supply Voltage
V
L
2.7
V+
V
Positive Supply Current
l+
V
IN_
= 0 or V
L,
V
L
= V+
1
1
A
Logic Supply Current
I
L
V
IN_
= 0 or V
L
, V+ = 5.5V
1
A
Ground Current
I
GND
V
IN_
= 0 or V
L,
V+ = 5.5V
1
10
A
DYNAMIC
T
A
= +25C
600
1000
Turn-On Time
t
ON
V
L
= V+, V+ = +4.5V; V
NC
_
or V
NO_
= 3.3V, R
L
= 300
,
C
L
= 35pF, Figure 2
T
A
= T
MIN
to T
MAX
1400
ns
T
A
= +25C
120
165
Turn-Off Time
t
OFF
V
L
= V+, V+ = +4.5V; V
NC
_
or V
NO_
= 3.3V, R
L
= 300
,
C
L
= 35pF, Figure 2
T
A
= T
MIN
to T
MAX
400
ns
MAX4677/MAX4678/MAX4679
2
, Quad, SPST, CMOS Analog Switches
_______________________________________________________________________________________
5
ELECTRICAL CHARACTERISTICSSingle 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
= +25C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Break-Before- Make
Delay
t
BBM
MAX4679 only, R
L
= 300
, C
L
= 35pF, Figure 3
5
ns
Charge Injection
Q
R
GEN
= 0, C
L
= 1nF, V
GEN
= 0, Figure 4
9
pC
Off-Isolation
V
ISO
R
L
= 50
, C
L
= 5pF, f = 1MHz, Figure 5b
-65
dB
Crosstalk
R
L
= 50
, C
L
= 5pF, f = 1MHz, Figure 6b
-84
dB
-3dB Bandwidth
BW
R
S
= 50
, R
L
= 50
, Figure 7b
63
MHz
NC or NO Off-
Capacitance
C
(N_OFF)
f = 1MHz, Figure 8
85
pF
COM Off-Capacitance
C
(COMOFF)
f = 1MHz, Figure 8
85
pF
On-Capacitance
C
(ON)
f = 1MHz, Figure 8
350
pF
Typical Operating Characteristics
(T
A
= +25C, unless otherwise noted.)
0
0.6
0.4
0.2
0.8
1.0
1.2
1.4
1.6
1.8
2.0
-5
-1
-3
1
3
5
MAX4677/8/9-01
V
COM
(V)
R
ON
(
)
ON-RESISTANCE vs. V
COM
(DUAL SUPPLY)
V
= 2.5V
V
= 3V
V
= 4V
V
= 5V
0
1.5
1.0
0.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0
2
1
3
4
5
MAX4677/8/9-02
V
COM
(V)
R
ON
(
)
ON-RESISTANCE vs. V
COM
(SINGLE SUPPLY)
V- = 0
V+ = 3V
V+ = 5V
V+ = 9V
V+ = 12V
V+ = 2.5V
V+ = 4V
T
A
= +85
C
T
A
= +25
C
T
A
= -40
C
0
0.4
0.2
0.8
0.6
1.2
1.0
1.4
-5
-1
-3
1
3
-4
0
-2
2
4
5
ON-RESISTANCE vs. V
COM
AND
TEMPERATURE (DUAL SUPPLIES)
MAX4677/8/9-03
V
COM
(V)
R
ON
(
)
V+ = +5V
V- = -5V
V
L
= V+
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 +25C.
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