19-2044; Rev 1, 2/05
Low-Voltage, 60Ω Dual
SPDT Analog Switch in Thin QFN
General Description
The MAX4695 is a low-voltage, dual single-pole/double-
throw (SPDT) analog switch that operates from a single
+1.8V to +5.5V supply. The MAX4695 features break-
before-make switching action with a t
ON
= 30ns and
t
OFF
= 18ns at +3V.
When powered from a +2.7V supply, the device has a
60Ω (max) on-resistance (R
ON
), with 3Ω (max) R
ON
matching and 10Ω (max) R
ON
flatness. The digital logic
inputs are 1.8V-logic compatible from a +2.7V to +3.3V
supply. The MAX4695 is available in both a space-sav-
ing 3mm x 3mm 12-pin TQFN package and a
10-pin µMAX
®
package.
♦
Guaranteed On-Resistance:
60Ω (max) (+2.7V supply)
25Ω (typ) (+5V supply)
♦
Guaranteed Match Between Channels: 3Ω (max)
♦
Guaranteed Flatness Over Signal Range:
10Ω (max)
♦
Guaranteed Low Leakage Currents:
100pA (max) at +25°C
♦
Switching Time: t
ON
= 30ns, t
OFF
= 18ns
♦
+1.8V to +5.5V Single-Supply Operation
♦
Rail-to-Rail Signal Handling
♦
-3dB Bandwidth: >300MHz
♦
Low Crosstalk: -82dB (1MHz)
♦
High Off-Isolation: -75dB (1MHz)
♦
Low 4pC Charge Injection
♦
THD: 0.03%
♦
+1.8V CMOS-Logic Compatible
Features
♦
3mm x 3mm 12-Pin Thin QFN Package
MAX4695
Applications
MP3 Players
Battery-Operated Equipment
Relay Replacement
Audio and Video Signal Routing
Low-Voltage Data-Acquisition Systems
Communications Circuits
PCMCIA Cards
Cellular Phones
Modems
Ordering Information
PART
TEMP RANGE
-40°C to 85°C
-40°C to 85°C
PIN-PACKAGE
12 TQFN
10 µMAX
µMAX is a registered trademark of Maxim Integrated
Products, Inc.
MAX4695ETC
MAX4695EUB
Pin Configurations
TOP VIEW
IN1
1
NO1
2
GND
3
NO2
4
IN2
5
µMAX
10
COM1
9
NC1
V+
IN_
NC2
0
6
COM2
1
OFF
ON
ON
OFF
MAX4695
NO_
NC_
NO2
3
4
IN2
5
COM2
THIN QFN
6
N.C.
7
NC2
NO1
GND
1
2
9
8
NC1
V+
IN1
COM1 N.C.
11
10
12
MAX4695
8
7
MAX4695
SWITCHES SHOWN FOR LOGIC "0" INPUT
________________________________________________________________
Maxim Integrated Products
1
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.
Low-Voltage, 60Ω Dual
SPDT Analog Switch in Thin QFN
MAX4695
ABSOLUTE MAXIMUM RATINGS
(Voltages Referenced to GND)
V+ ............................................................................-0.3V to +6V
All Other Pins (Note 1) .............................. -0.3V to (V+ + 0.3V)
Continuous Current COM_, NO_, NC_ .............................±20mA
Peak Current COM_, NO_, NC_
(pulsed at 1ms, 10% duty cycle) ...............................±40mA
ESD per Method 3015.7 .........................................................2kV
Continuous Power Dissipation (T
A
= +70°C)
10-Pin µMAX (derate 4.7mW/°C above +70°C) ......... 330mW
12-Pin Thin QFN (derate 16.7mW/°C above +70°C) 1333.3mW
Operating Temperature Range .......................... -40°C to +85°C
Storage Temperature Range ........................... -65°C to +150°C
Lead Temperature (soldering, 10s) ............................... +300°C
Note 1:
Signals on IN_, COM_, NO_, and NC_ exceeding V+ or GND 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—Single +3V Supply
(V+ = +2.7V to +3.3V, V
IH
= +1.4V, V
IL
= +0.5V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V+ = +3V and
T
A
= +25°C.) (Notes 2, 9)
PARAMETER
ANALOG SWITCH
Analog Signal Range
On-Resistance
On-Resistance Match
Between Channels (Note 3)
On-Resistance Flatness
(Note 4)
NO_, NC_ Off-Leakage
Current (Note 5)
COM_ On-Leakage Current
(Note 5)
DYNAMIC
Turn-On Time
Turn-Off Time
Break-Before-Make Time
(Note 6)
Charge Injection
On-Channel -3dB Bandwidth
Off-Isolation (Note 7)
t
ON
t
OFF
t
BBM
Q
BW
V
ISO
V
NO
or V
NC_
= +1.5V, R
L
= 300Ω,
C
L
= 35pF, Figure 2
V
NO
or V
NC_
= +1.5V, R
L
= 300Ω,
C
L
= 35pF, Figure 2
V
NO
or V
NC_
= +1.5V, R
L
= 300Ω,
C
L
= 35pF, Figure 3
V
GEN
= 0, R
GEN
= 0, C
L
= 1.0nF,
Figure 4
Signal = 0dBm, 50Ω in and out,
Figure 5
f = 1MHz, R
L
= 50Ω, C
L
= 5pF,
Figure 5
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
2
4
300
-75
12
12
24
30
40
18
20
ns
ns
ns
pC
MHz
dB
V
COM_
,
V
NO_
, V
NC_
_
R
ON
∆R
ON
R
FLAT (ON)
I
NO_(OFF)
,
I
NC_(OFF)
I
COM _(ON)
V+ = +2.7V, I
COM_
= 1mA, V
NO_
or
V
NC_
= +1.4V
V+ = +2.7V, I
COM_
= 1mA, V
NO_
or
V
NC_
= +1.4V
V+ = +2.7V, I
COM_
= 1mA, V
NO_
or
V
NC_
= +1V, +1.4V, +1.8V
V+ = +3.3V, V
COM_
= +0.3V, +3V
V
NO_
or V
NC_
= +3V, +0.3V
V+ = +3.3V, V
COM_
= +0.3V, +3V
V
NO_
or V
NC_
= +0.3V, +3V, or floating
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
-0.1
-1
-0.2
-2
±0.01
±0.01
6
0.5
0
40
V+
60
70
3
4
10
15
+0.1
+1
+0.2
+2
V
Ω
Ω
Ω
nA
nA
SYMBOL
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
2
_______________________________________________________________________________________
Low-Voltage, 60Ω Dual
SPDT Analog Switch in Thin QFN
ELECTRICAL CHARACTERISTICS—Single +3V Supply (continued)
(V+ = +2.7V to +3.3V, V
IH
= +1.4V, V
IL
= +0.5V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V+ = +3V and
T
A
= +25°C.) (Notes 2, 9)
PARAMETER
Crosstalk (Note 8)
Total Harmonic Distortion
NO_, NC_ Off-Capacitance
COM_ On-Capacitance
DIGITAL I/O
Input Logic High
Input Logic Low
Input Leakage Current
SUPPLY
Power-Supply Range
Power-Supply Current
V+
I+
V+ = +5.5V, V
IN_
= 0 or V+
1.8
5.5
1
V
µA
V
IH
V
IL
I
IH
, I
IL
V
IN_
= 0 or V+
-1
1.4
0.5
+1
V
V
µA
SYMBOL
V
CT
THD
C
NO_(OFF)
,
C
NC_(OFF)
C
COM_(ON)
CONDITIONS
f = 1MHz, R
L
= 50Ω, C
L
= 5pF,
Figure 5
f = 20Hz to 20kHz, 2Vp-p, R
L
= 600Ω
f = 1MHz, V
NO
_ or V
NC
_ = GND,
Figure 6
f = 1MHz, V
NO
_ or V
NC
_ = GND,
Figure 6
T
A
MIN
TYP
-82
0.03
7
19
MAX
UNITS
dB
%
pF
pF
MAX4695
ELECTRICAL CHARACTERISTICS—Single +5V Supply
(V+ = +4.5V to +5.5V, V
IH
= +2.0V, V
IL
= +0.8V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V+ = +5V and
T
A
= +25°C.) (Notes 2, 9)
PARAMETER
ANALOG SWITCH
Analog Signal Range
On-Resistance
On-Resistance Match
Between Channels (Note 3)
On-Resistance Flatness
(Note 4)
NO_, NC_ Off-Leakage
Current (Note 5)
COM_ On-Leakage Current
(Note 5)
DYNAMIC
Turn-On Time
Turn-Off Time
t
ON
t
OFF
V
NO_
, V
NC_
= +3V, R
L
= 300Ω,
C
L
= 35pF, Figure 2
V
NO_
, V
NC_
= +3V, R
L
= 300Ω,
C
L
= 35pF, Figure 2
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
8
17
25
30
15
20
ns
ns
V
COM_
,
V
NO_
, V
NC_
R
ON
∆R
ON
R
FLAT (ON)
I
NO_(OFF)
,
I
NC_(OFF)
I
COM _(ON)
V+ = +4.5V, I
COM_
= 1mA, V
NO_
or
V
NC_
= +3.5V
V+ = +4.5V, I
COM_
= 1mA, V
NO_
or
V
NC_
= +3.5V
V+ = +4.5V, I
COM_
= 1mA, V
NO_
or
V
NC_
= +1V, +2.5V, +3.5V
V+ = +5.5V, V
COM_
= +1V, +4.5V
V
NO_
or V
NC_
= +4.5V, +1V
V+ = +5.5V, V
COM_
= +1V, +4.5V
V
NO_
or V
NC_
= +1V, +4.5V, or floating
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
-0.1
-1
-0.2
-2
±0.01
±0.01
4
0.5
0
25
V+
35
40
2
3
8
10
+0.1
+1
+0.2
+2
V
Ω
Ω
Ω
nA
nA
SYMBOL
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
_______________________________________________________________________________________
3
Low-Voltage, 60Ω Dual
SPDT Analog Switch in Thin QFN
MAX4695
ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)
(V+ = +4.5V to +5.5V, V
IH
= +2.0V, V
IL
= +0.8V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V+ = +5V and
T
A
= +25°C.) (Notes 2, 9)
PARAMETER
Break-Before-Make Time
(Note 6)
Charge Injection
On-Channel -3dB Bandwidth
Off-Isolation (Note 7)
Crosstalk (Note 8)
Total Harmonic Distortion
DIGITAL I/O
Input Logic High
Input Logic Low
Input Leakage Current
SUPPLY
Power-Supply Range
Positive Supply Current
V+
I+
V+ = +5.5V, V
IN
= 0 or V+
1.8
5.5
1
V
µA
V
IH
V
IL
I
IH
, I
IL
V
IN_
= 0 or V+
-1
2.0
0.8
+1
V
V
µA
SYMBOL
t
BBM
Q
BW
V
ISO
V
CT
THD
CONDITIONS
V
NO_
, V
NC_
= +3V, R
L
= 300Ω,
C
L
= 35pF, Figure 3
V
GEN
= 0, R
GEN
= 0, C
L
= 1.0nF,
Figure 4
Signal = 0dBm, 50Ω in and out,
Figure 5
f = 1MHz, R
L
= 50Ω, C
L
= 5pF,
Figure 5
f = 1MHz, R
L
= 50Ω, C
L
= 5pF,
Figure 5
f = 20Hz to 20kHz, 2Vp-p, R
L
= 600Ω
T
A
+25°C
T
MIN
to T
MAX
2
8
300
-75
-82
0.02
MIN
TYP
9
MAX
UNITS
ns
pC
MHz
dB
dB
%
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:
∆
RON
= 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 currents are 100% tested at T
A
= +85°C. Limits across the full temperature range are guaranteed by correlation.
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:
-40°C specifications are guaranteed by design.
4
_______________________________________________________________________________________
Low-Voltage, 60Ω Dual
SPDT Analog Switch in Thin QFN
Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
MAX4695
ON-RESISTANCE vs. V
COM
MAX4695 toc01
ON-RESISTANCE vs. V
COM
MAX4695 toc02
ON-RESISTANCE vs. V
COM
45
40
35
R
ON
(Ω)
30
25
20
15
10
5
T
A
= +25°C
T
A
= -40°C
T
A
= +85°C
V+ = +3V
MAX4695 toc03
140
120
100
R
ON
(Ω)
80
60
40
20
0
0
1
2
V+ = +5.5V
3
4
5
V+ = +2.5V
V+ = +3V
V+ = +5V
V+ = +1.8V
60
50
40
R
ON
(Ω)
30
T
A
= +25°C
20
10
0
0
0.5
1.0
1.5
T
A
= +85°C
50
V+ = +2.5V
T
A
= -40°C
0
2.0
2.5
0
0.5
1.0
1.5
V
COM
(V)
2.0
2.5
3.0
V
COM
(V)
V
COM
(V)
ON-RESISTANCE vs. V
COM
MAX4695 toc04
SUPPLY CURRENT vs. TEMPERATURE
MAX4695 toc05
40
35
30
R
ON
(Ω)
25
20
15
10
5
0
0
T
A
= +25°C
T
A
= +85°C
V+ = +5V
10,000
1000
SUPPLY CURRENT (pA)
100
10
V+ = +3V
1
0.1
0.01
-40
-15
10
35
60
V+ = +5V
T
A
= -40°C
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
V
COM
(V)
85
TEMPERATURE (°C)
SUPPLY CURRENT
vs. LOGIC INPUT VOLTAGE
1000
100
SUPPLY CURRENT (µA)
10
1
0.1
0.01
0.001
0.0001
0.00001
0.000001
0
1
2
3
4
5
LOGIC LEVEL (V)
0.1
-40
1
V+ = +3V
V+ = +5V
MAX4695 toc06
ON-LEAKAGE CURRENT
vs. TEMPERATURE
MAX4695 toc07
10,000
1000
100
ON-LEAKAGE (pA)
V+ = +5V
10
V+ = +3V
-15
10
35
60
85
TEMPERATURE (°C)
_______________________________________________________________________________________
5
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