General Description
The MAX4647/MAX4648 are dual-supply single-pole/single-throw (SPST) switches. On-resistance is 25Ω max and
flat (2Ω max) over the specified signal range. Each switch
can handle rail-to-rail analog signals. Off-leakage current
is only 1nA max at +25°C. They conduct analog or digital
signals equally well in either direction. The primary application areas are in the switching and routing of signals in
telecommunications and test equipment.
The MAX4647/MAX4648 are single SPST analog switches.
The MAX4647 has one normally closed (NC) switch, and
the MAX4648 has one normally open (NO) switch. These
devices operate from a single +9V to +36V supply or from
dual ±4.5V to ±20V supplies. The MAX4647/MAX4648 are
available in tiny 6-pin SOT23 packages.
________________________Applications
PBX, PABX Systems
Communication Systems
DSL
Test Equipment
Avionics
Audio Systems
Redundant Systems
Relay Replacement
PC Multimedia Boards
____________________________Features
♦ Low On-Resistance 25Ω max (±15V Supplies)
♦ Guaranteed R
ON
Flatness Over Specified Signal
Range (2Ω max)
♦ V
L
Logic Supply Not Required
♦ Rail-to-Rail Signal Handling
♦ ±15V and Single 12V Supply Operation
♦ Low Leakage (1nA max)
♦ Fast Switching Speeds
t
ON
= 100ns
t
OFF
= 100ns
MAX4647/MAX4648
25Ω SPST Analog Switches in SOT23-6
________________________________________________________________ Maxim Integrated Products 1
V-
GNDIN
16COM
5 V+
NC
MAX4647
SOT23-6
TOP VIEW
2
34
LOGIC
SWITCH
0
1
ON
OFF
LOGIC
SWITCH
0
1
OFF
ON
V-
GNDIN
16COM
5 V+
NO
MAX4648
SOT23-6
2
34
Pin Configurations/Functional Diagrams/Truth Tables
19-1880; Rev 1; 1/07
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
PART
TEMP
RANGE
PIN-
TOP
PKG
CODE
MAX4647EUT-T+
U 6S N - 1
MAX4648EUT-T+
U 6S N - 1
Ordering Information
+Denotes a lead-free package.
PACKAGE
-40°C to +85°C 6 SOT23 AARV
-40°C to +85°C 6 SOT23 AARW
MARK
MAX4647/MAX4648
25Ω SPST Analog Switches in SOT23-6
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS—Dual ±15V Supplies
(V+ = +15V, V- = -15V, VIH= 2.4V, VIL= 0.8V, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA= +25°C.)
(Notes 2, 3)
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+ ...........................................................................-0.3V, +44.0V
V- ............................................................................-44.0V, +0.3V
V+ to V-................................................................-0.3V to +44.0V
All Other Pins (Note 1)...............................V- - 0.3V to V+ + 0.3V
Continuous Current into Any Terminal..............................±60mA
Peak Current into Any Terminal
(pulsed at 1ms, 10% duty cycle)...............................±100mA
Continuous Power Dissipation (T
A
= +70°C)
6-Pin SOT23 (derate 8.7mW/°C above +70°C)...........696mW
Operating Temperature Ranges
MAX464_EUT..................................................-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 T
A
MIN
TYP
MAX
UNITS
ANALOG SWITCH
Analog Signal Range
V
COM
V- V+ V
+25°C1825
On-Resistance R
ON
I
COM
= 10mA; V
NO
or V
NC
= ±10V
T
MIN
to T
MAX
30
Ω
+25°C 0.8 2
On-Resistance
Flatness (Note 4)
)
I
COM
= 10mA; V
NO
or V
NC
= +5V, 0, -5V
T
MIN
to T
MAX
3
Ω
+25°C-1
1
NO or NC Off-Leakage
Current
)
V
NO
or V
NC
= +14V, -14V;
V
COM
= -14V, +14V
T
MIN
to T
MAX
10
nA
+25°C-1
1
COM Off-Leakage
Current
)
V
COM
= -14V, +14V;
V
NO
or V
NC
= +14V, -14V
T
MIN
to T
MAX
10
nA
+25°C-2 2
COM On-Leakage
Current
)
V
COM
= +14V, -14V;
V
NO
or V
NC
= +14V, -14V or
floating
T
MIN
to T
MAX
20
nA
LOGIC INPUT
Input Logic High V
IH
T
MIN
to T
MAX
V
Input Logic Low V
IL
T
MIN
to T
MAX
0.8 V
Input Leakage Current
I
IN
V
IN
= 0 or +5V T
MIN
to T
MAX
-1 1 µA
DYNAMIC CHARACTERISTICS
+25°C68
Turn-On Time t
ON
VNO or V
NC
= ±10V; RL = 300Ω;
C
L
= 35pF; Figure 2
T
MIN
to T
MAX
ns
+25°C62
Turn-Off Time t
OFF
VNO or V
NC
= ±10V; R
L
=300Ω;
C
L
= 35pF; Figure 2
T
MIN
to T
MAX
ns
Charge Injection Q
COM
= 0; RS = 0; CL = 1nF;
Figure 3
+25°C4pC
Note 1: Signals on NO, NC, COM, or IN exceeding V+ or V- are clamped by internal diodes. Limit forward-diode current to
maximum current rating.
VNO,VNC,
R
FLAT(ON
I
NO(OFF)
I
NC(OFF
I
COM(OFF
I
COM(ON
or
0.01
-10
0.01
-10
-20
2.4
100
125
100
125
MAX4647/MAX4648
25Ω SPST Analog Switches in SOT23-6
________________________________________________________________________________________ 3
MAX4647/MAX4648
PARAMETER
CONDITIONS T
A
TYP
UNITS
Off-Isolation V
ISO
CL = 5pF; RL = 50Ω; f = 1MHz;
V
COM
= 1V
RMS
; Figure 4
+25°C -92 dB
Total Harmonic
Distortion
THD
RL = 600Ω, 5Vp-p,
f = 20Hz to 20kHz
+25°C
%
V
NO
or V
NC
Off-Capacitance
C
NO(OFF)
,
)
f = 1MHz; Figure 5 +25°C6pF
COM Off-Capacitance
)
f = 1MHz; Figure 5 +25°C6pF
COM On-Capacitance
)
f = 1MHz; Figure 6 +25°C19pF
POWER SUPPLY
Power Supply Range T
MIN
to T
MAX
V
+25°C45
VIN = 5V
T
MIN
to T
MAX
+25°C
1
Positive Supply Current
I+
V
IN
= 0 or V+
T
MIN
to T
MAX
10
µA
+25°C
1
Negative Supply
Current
I- V
IN
= 0 or 5V
T
MIN
to T
MAX
10
µA
ELECTRICAL CHARACTERISTICS—Dual ±15V Supplies (continued)
(V+ = +15V, V- = -15V, VIH= 2.4V, VIL= 0.8V, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA= +25°C.
(Notes 2, 3)
ELECTRICAL CHARACTERISTICS—Single +12V Supply
(V+ = +12V, V- = 0, V
IH
= 2.4V, VIL= 0.8V, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA= +25°C.)
(Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS T
A
MIN
TYP
MAX
UNITS
ANALOG SWITCH
Analog Signal Range
VNO, VNC,
V
COM
0V+V
+25°C3645
On-Resistance R
ON
I
COM
= 10mA; V
NO
or VNC = +10V
T
MIN
to T
MAX
60
Ω
+25°C46
On-Resistance
Flatness (Note 4)
)
I
COM
= 10mA; V
NO
or V
NC
= +2V, +6V, +10V
T
MIN
to T
MAX
8
Ω
DYNAMIC
+25°C
Turn-On Time t
ON
V
N O
or V
N C
= + 10V ; RL = 300Ω;
C
L
= 35p F; Fi g ur e 2
T
MIN
to T
MAX
ns
+25°C68
Turn-Off Time t
OFF
V
N O
or V
N C
= + 10V ; RL = 300Ω;
C
L
= 35p F; Fi g ur e 2
T
MIN
to T
MAX
ns
Charge Injection Q
COM
= 0; RS = 0; CL = 1nF;
Figure 3
+25°C-5pC
SYMBOL
C
NC(OFF
C
COM(OFF
C
COM(ON
MIN
MAX
0.006
±4.5 ±20
100
150
0.001
0.001
R
FLAT(ON
100 175
225
150
200