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MAX4679EPE+

P1-P3P4-P6P7-P9P10-P12
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.
________________________Applications
Features
♦ On-Resistance 1.6Ω max
♦ On-Resistance Flatness 0.4Ω max
♦ On-Resistance Matching 0.3Ω max
♦ Dual ±2.7V to ±5.5V or Single +2.7V to +11V
Supply Range
♦ TTL/CMOS-Logic Compatible
♦ Crosstalk -84dB at 1MHz
♦ Off-Isolation -65dB at 1MHz
♦ -3dB Bandwidth: 66MHz
♦ Rail-to-Rail Signal Range
MAX4677/MAX4678/MAX4679
2Ω, 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 +85°C 16 TSSOP
MAX4677EPE -40°C to +85°C 16 DIP
MAX4678EUE -40°C to +85°C 16 TSSOP
MAX4678EPE -40°C to +85°C 16 DIP
MAX4679EUE -40°C to +85°C 16 TSSOP
MAX4679EPE -40°C to +85°C 16 DIP
Reed Relay Replacement
Test Equipment
Communications Systems
Audio Signal Routing
Avionics
ADC Systems
Data-Acquisition Systems
PBX/PABX Systems
MAX4677/MAX4678/MAX4679
2Ω, Quad, SPST, CMOS Analog Switches
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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)
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
= +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
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
Ω
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
Ω
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
Ω
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 µA
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
2Ω, Quad, SPST, CMOS Analog Switches
_______________________________________________________________________________________ 3
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 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 µA
Negative Supply Current I-
IN_ = GND or V
L
-1 µA
Logic Supply Current I
L
IN_ = GND or V
L
1 µA
Ground Current I
GND
IN_ = 0 or V+, V+ = 5.5V, V- = -5.5V 1 µA
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
= 300Ω,
C
L
= 35pF
5ns
Charge Injection Q R
GEN
= 0, C
L
= 1nF, V
GEN
= 0, Figure 4 85 pC
Off-Isolation V
ISO
R
L
= 50Ω, C
L
= 5pF, f = 1MHz, Figure 5a -65 dB
Crosstalk R
L
= 50Ω, C
L
= 5pF, f = 1MHz, Figure 6a -84 dB
-3dB Bandwidth BW R
S
= 50Ω, R
L
= 50Ω, 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
P1-P3P4-P6P7-P9P10-P12

MAX4679EPE+

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Manufacturer:
Maxim Integrated
Description:
Analog Switch ICs 2Ohm Quad SPST CMOS Analog Switch
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