www.docs.chipfind.ru
General Description
The MAX4635/MAX4636 are fast, dual 4
single-
pole/double-throw (SPDT) analog switches that operate
with supply voltages from +1.8V to +5.5V. High switch-
ing speeds, 1
on-resistance flatness, and low power
consumption make these devices ideal for audio/video,
communications, and battery-operated devices.
Containing two independently controllable SPDT
switches in 10-pin MAX and 10-pin 3mm x 3mm thin
QFN packages, the MAX4635/MAX4636 use little board
space, and have low power consumption ensuring min-
imal impact on your power budget. The analog signal
range extends to the supply rails. The MAX4635 has
inverted logic compared to the MAX4636.
________________________Applications
Battery-Powered Equipment
Relay Replacement
Audio and Video Signal Routing
Low-Voltage Data-Acquisition Systems
Sample-and-Hold Circuits
Communications Circuits
Features
o Guaranteed On-Resistance
4
(max) +5V Supply
5.5
(max) +3V Supply
o Guaranteed Match Between Channels
0.2
(max)
o Guaranteed Flatness Over Signal Range
1
(max) with +5V Supply
o Fast Switching Speeds
14ns (max) Turn-On Time
6ns (max) Turn-Off Time
o 1.8V Operation
100
(typ) On-Resistance Over Temperature
56ns (typ) Turn-On Time
17ns (typ) Turn-Off Time
o +1.8V to +5.5V Single-Supply Operation
o Rail-to-Rail
Signal Handling
o Low Crosstalk: -67dB at 1MHz
o High Off-Isolation: -65dB at 1MHz
o THD: 0.1%
MAX4635/MAX4636
Fast, Low-Voltage, Dual 4
SPDT
CMOS Analog Switches
________________________________________________________________ Maxim Integrated Products
1
1
2
3
4
5
10
9
8
7
6
COM1
NO1
V+
NO2
NC2
GND
NC1
IN1
MAX4636
MAX
TOP VIEW
COM2
IN2
1
2
3
4
5
10
9
8
7
6
COM1
NC1
V+
NC2
NO2
GND
NO1
IN1
MAX4635
MAX
COM2
IN2
1
2
3
4
5
10
9
8
7
6
COM1
NO1
V+
NO2
NC2
GND
NC1
IN1
MAX4636
3 x 3 THIN QFN
COM2
IN2
1
2
3
4
5
10
9
8
7
6
COM1
NC1
V+
NC2
NO2
GND
NO1
IN1
MAX4635
3 x 3 THIN QFN
COM2
IN2
0
SWITCHES SHOWN FOR "0" INPUT
1
OFF
ON
ON
OFF
IN_
NO_ TO COM_ NC_ TO COM_
Pin Configuration/Functional Diagram/Truth Table
19-1709; Rev 2; 5/03
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX4635EUB
-40C to +85C
10 MAX
--
MAX4635ETB
-40C to +85C
10 Thin
QFN (3
3)
AAT
MAX4636EUB
-40C to +85C
10 MAX
--
MAX4636ETB
-40C to +85C
10 Thin
QFN (3
3)
AAO
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
MAX4635/MAX4636
Fast, Low-Voltage, Dual 4
SPDT
CMOS Analog Switches
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS--Single +5V Supply
(V+ = +4.5V to +5.5V, 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.)
(Notes 2, 9)
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_ .....................................................................-0.3V to +6V
COM_, NC_, NO_ (Note 1) .......................... -0.3V to (V+ + 0.3V)
Continuous Current into Any Terminal .............................30mA
Peak Current into COM_, NC_, NO_
(pulsed at 1ms, 10% duty cycle).................................100mA
Continuous Power Dissipation (T
A
= +70C)
10-Pin MAX (derate 4.7mW/C above +70C) ............330mW
10-Pin Thin QFN (derate 24.4mW/C above +70C) ..1951mW
Operating Temperature Range .......................... -40C to +85C
Storage Temperature Range ........................... -65C to +150C
Lead Temperature (soldering, 10s) ............................... +300C
Note 1: Signals on NO_, NC_, or COM_ exceeding V+ or GND are clamped by internal diodes. Limit forward-diode current to maxi-
mum current rating.
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
ANALOG SWITCH
Analog Signal Range
V
COM_
,
V
NO_
,
V
NC_
0
V+
V
T
A
= +25C
2.5
4
On-Resistance
R
ON
V + = 4.5V , I
C OM_
= 10m A,
V
NO_
or V
NC_
= 0 to V+
T
A
= T
MIN
to T
MAX
4.5
T
A
= +25C
0.1
0.2
On-Resistance Match
Between Channels (Notes 3, 4)
R
ON
V + = 4.5V , I
C OM_
= 10m A,
V
NO_
or V
NC_
= 0 to V+
T
A
= T
MIN
to T
MAX
0.4
T
A
= +25C
0.5
1
On-Resistance Flatness
(Note 5)
R
FLAT(ON)
V+ = 4.5V, I
COM_
= 10mA,
V
NO_
or V
NC_
= 0 to V+
T
A
= T
MIN
to T
MAX
1.2
T
A
= +25C
-0.1
0.01
0.1
NO_, NC_ Off-Leakage Current
(Note 6)
I
NC_(OFF)
,
I
NO_(OFF)
V+ = 5.5V; V
COM_
= 1V,
4.5V ; V
N O_
or V
N C _
= 4.5V ,
1V
T
A
= T
MIN
to T
MAX
-0.3
0.3
nA
T
A
= +25C
-0.1
0.01
0.1
COM_ Off-Leakage Current
(Note 6)
I
COM_(OFF)
V+ = 5.5V; V
COM_
= 1V,
4.5V; V
N O_
or V
N C _
= 4.5V ,
1V
T
A
= T
MIN
to T
MAX
-0.3
0.3
nA
T
A
= +25C
-0.1
0.01
0.1
COM_ On-Leakage Current
(Note 6)
I
COM_(ON)
V + = 5.5V ; V
C OM_
= 4.5V,
1V ; V
N O_
or V
N C _
= 4.5V ,
1V or floating
T
A
= T
MIN
to T
MAX
-0.3
0.3
nA
DIGITAL I/O (IN1, IN2)
Input Logic High
V
IH
2.4
V
Input Logic Low
V
IL
0.8
V
Input Leakage Current
I
IH
,
I
IL
V
IN_
= 0 or +5.5V
-100
5
100
nA
MAX4635/MAX4636
Fast, Low-Voltage, Dual 4
SPDT
CMOS Analog Switches
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS--Single +5V Supply (continued)
(V+ = +4.5V to +5.5V, 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.)
(Notes 2, 9)
ELECTRICAL CHARACTERISTICS--Single +3V Supply
(V+ = +2.7V to +3.6V, V
IH
= +2.0V, V
IL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25C.)
(Notes 2, 9)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DYNAMIC
T
A
= +25C
12
14
Turn-On Time
(Note 6)
t
ON
V
NO_
, V
NC_
= 3V;
R
L
= 300
, C
L
= 35pF,
Figure 1a
T
A
= T
MIN
to T
MAX
16
ns
T
A
= +25C
5
6
Turn-Off Time
(Note 6)
t
OFF
V
NO_
, V
NC_
= 3V;
R
L
= 300
, C
L
= 35pF,
Figure 1a
T
A
= T
MIN
to T
MAX
8
ns
T
A
= +25C
7
Break-Before-Make Time
(Note 6)
t
BBM
V
NO_
, V
NC_
= 3V;
R
L
= 300
, C
L
= 35pF,
Figure 1b
T
A
= T
MIN
to T
MAX
1
ns
Charge Injection
Q
V
GEN
= 2V, R
GEN
= 0, C
L
= 1.0nF, Figure 2
2
pC
NO_, NC_ Off-Capacitance
C
NO_(OFF)
,
C
NC_(OFF)
V
NO_
, V
NC_
= GND, f = 1MHz, Figure 3
9
pF
COM_ On-Capacitance
C
COM_(ON)
V
COM_
= GND, f = 1MHz, Figure 3
32
pF
C
L
= 5pF, R
L
= 50
, f = 10MHz, Figure 4
-52
Off-Isolation (Note 7)
V
ISO
C
L
= 5p F, R
L
= 50
, f = 1M H z, Fi g ur e 4
-65
dB
C
L
= 5pF, R
L
= 50
, f = 10M H z, Fig ur e 4
-66
Crosstalk (Note 8)
V
CT
C
L
= 5pF, R
L
= 50
, f = 1MHz, Figure 4
-67
dB
Total Harmonic Distortion
THD
R
L
= 600
, V
NO_
= 5V
P-P
, f = 20Hz to 20kHz
0.1
%
SUPPLY
Positive Supply Current
I+
V+ = 5.5V, V
IN_
= 0 or V+
0.001
1.0
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
ANALOG SWITCH
Analog Signal Range
V
COM_
,
V
NO_
,
V
NC_
0
V+
V
T
A
= +25C
5
5.5
On-Resistance
R
ON
V + = 2.7V , I
C OM_
= 10m A,
V
NO_
or V
NC_
= 0 to V+
T
A
= T
MIN
to T
MAX
8
T
A
= +25C
0.1
0.2
On-Resistance Match Between
Channels (Notes 3, 4)
R
ON
V + = 2.7V , I
C OM_
= 10m A,
V
NO_
or V
NC_
= 0 to V+
T
A
= T
MIN
to T
MAX
0.4
T
A
= +25C
1.5
2
On-Resistance Flatness
(Note 5)
R
FLAT(ON)
V + = 2.7V , I
C OM_
= 10m A,
V
NO_
or V
NC_
= 0 to V+
T
A
= T
MIN
to T
MAX
2.5
T
A
= +25C
-0.1
0.01
0.1
NO_, NC_ Off-Leakage Current
(Note 6)
I
NO_(OFF),
I
NC_(OFF)
V + = 3.3V ; V
C OM_
= 1V , 3V ;
V
NO_
or V
NC_
= 3V, 1V
T
A
= T
MIN
to T
MAX
-0.3
0.3
nA
T
A
= +25C
-0.1
0.01
0.1
COM_ Off-Leakage Current
(Note 6)
ICOM_(OFF)
V + = 3.3V ; V
C OM_
= 1V , 3V ;
V
NO_
or V
NC_
= 3V, 1V
T
A
= T
MIN
to T
MAX
-0.3
0.3
nA
MAX4635/MAX4636
Fast, Low-Voltage, Dual 4
SPDT
CMOS Analog Switches
4
_______________________________________________________________________________________
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
T
A
= +25C
-0.1
0.01
0.1
COM_ On-Leakage Current
(Note 6)
I
COM_(ON)
V+ = 3.3V; V
COM_
=1V,
3V; V
NO_
or V
NC_
= 1V,
3V, or floating
T
A
= T
MIN
to T
MAX
-0.3
0.3
nA
DIGITAL I/O (IN1, IN2)
Input Logic High
V
IH
2.0
V
Input Logic Low
V
IL
0.4
V
Input Leakage Current
I
IH
,
I
IL
V
IN
_
= 0 or +5.5V
-100
5
100
nA
DYNAMIC
T
A
= +25C
14
18
Turn-On Time (Note 6)
t
ON
V
NO_
, V
NC_
= 2V;
C
L
= 35pF, R
L
= 300
,
Figure 1a
T
A
= T
MIN
to T
MAX
20
ns
T
A
= +25C
6
8
Turn-Off Time (Note 6)
t
OFF
V
NO_
, V
NC_
= 2V;
C
L
= 35pF, R
L
= 300
,
Figure 1a
T
A
= T
MIN
to T
MAX
10
ns
T
A
= +25C
7
Break-Before-Make Time
(Note 6)
V
NO_
, V
NC_
= 2V;
C
L
= 35pF, R
L
= 300
,
Figure 1b
T
A
= T
MIN
to T
MAX
1
ns
Charge Injection
Q
V
GEN
= 1.5V, R
GEN
= 0, C
L
= 1.0nF, Figure 2
11
pC
NO_, NC_ Off-Capacitance
C
NO_(OFF)
,
C
NC_(OFF)
V
NO_
, V
NC_
= GND, f = 1MHz, Figure 3
9
pF
COM On-Capacitance
C
COM
(ON) V
COM
= GND, f = 1MHz, Figure 3
32
pF
C
L
= 5pF, R
L
= 50
, f = 10MHz, Figure 4
-52
Off-Isolation (Note 7)
V
ISO
C
L
= 5pF, R
L
= 50
, f = 1MHz, Figure 4
-65
dB
C
L
= 5pF, R
L
= 50
, f = 10MHz, Figure 4
-66
Crosstalk (Note 8)
V
CT
C
L
= 5pF, R
L
= 50
, f = 1MHz, Figure 4
-67
dB
SUPPLY
Positive Supply Current
I+
V+ = 3.6V, V
IN
= 0 or +3.6V
0.001
1
A
ELECTRICAL CHARACTERISTICS--Single +3V Supply (continued)
(V+ = +2.7V to +3.6V, V
IH
= +2.0V, V
IL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25C.)
(Notes 2, 9)
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:
R
ON
matching specifications for QFN-packaged parts are guaranteed by design.
Note 5: Flatness is defined as the difference between the maximum and minimum values of on-resistance as measured over the
specified analog signal ranges.
Note 6: Guaranteed by design.
Note 7: Off-Isolation = 20log
10
(V
COM
/ V
NO
), V
COM
= output, V
NO
= input to off switch.
Note 8: Between any two switches.
Note 9: QFN packaged parts are tested at +25C and guaranteed by design and correlation over the entire temperature range.
_______________________________________________________________________________________
5
MAX4635/MAX4636
Fast, Low-Voltage, Dual 4
SPDT
CMOS Analog Switches
0
4
2
8
6
12
10
14
0
2
1
3
4
5
ON-RESISTANCE vs. V
COM
MAX4636-01
V
COM
(V)
R
ON
(
)
V+ = 2.5V
V+ = 3.0V
V+ = 1.8V
V+ = 4.5V
V+ = 5.0V
4.0
3.5
3.0
2.5
2.0
0
1.5
0.5
1.0
2.0
2.5
3.0
ON-RESISTANCE vs. V
COM
AND
TEMPERATURE (V+ = +3V)
MAX4636-02
V
COM
(V)
R
ON
(
)
T
A
= +85C
T
A
= -40C
T
A
= +25C
1.5
2.0
2.5
3.0
0
1
2
3
5
ON-RESISTANCE vs. V
COM
AND
TEMPERATURE (V+ = +5V)
MAX4636-03
V
COM
(V)
R
ON
(
)
4
T
A
= +85C
T
A
= -40C
T
A
= +25C
-0.35
-0.20
-0.25
-0.30
-0.15
-0.10
-0.05
0
0.05
0.10
0.15
-50
0
50
100
ON/OFF-LEAKAGE CURRENT
vs. TEMPERATURE (V+ = +5V)
MAX4636-04
TEMPERATURE (C)
LEAKAGE (nA)
I
COM(ON)
NO
(OFF)
-5
5
0
15
10
20
25
0
2
1
3
4
5
CHARGE INJECTION vs. V
COM
MAX4636-05
V
COM
(V)
Q (pC)
V
CC
= +3V
V
CC
= +5V
0
20
40
1.5
2.5
3.5
5.5
TURN-ON/OFF TIME
vs. SUPPLY VOLTAGE
MAX4636-06
SUPPLY VOLTAGE (V)
t
ON
/t
OFF
(ns)
4.5
t
ON
t
OFF
0
10
15
25
-50
0
50
100
TURN-ON/OFF TIME
vs. TEMPERATURE (V+ = +5V)
MAX4636-07
TEMPERATURE (
C)
t
ON
/t
OFF
(ns)
20
5
t
ON
t
OFF
0
0.5
1.0
1.5
2.0
-50
0
50
100
POWER-SUPPLY CURRENT
vs. TEMPERATURE (V+ = +5V)
MAX4636-08
TEMPERATURE (C)
I+, I
GND
(nA)
0
0.5
1.5
1.0
2.0
2.5
LOGIC-LEVEL THRESHOLD
vs. SUPPLY VOLTAGE
MAX4636-09
SUPPLY VOLTAGE (V)
LOGIC-LEVEL THRESHOLD (V)
1
3
2
4
5
Typical Operating Characteristics
(T
A
= +25C, unless otherwise noted.)
PDF 
ZIP