MAXIM MAX4649 Technical data
19-1906; Rev 0; 2/01
IN
N.C.V+
1
2
87NO
V-NC
GND
COM
SOT23-8
TOP VIEW
3
4
6
5
MAX4649
LOGIC
NO
0
1
OFF
ON
NC
ON
OFF
General Description
The MAX4649 is a dual-supply, single-pole/doublethrow (SPDT) analog switch. On-resistance is 45Ω max
and flat (7Ω max) over the specified signal range. The
MAX4649 can handle Rail-to-Rail®analog signals, and
conducts analog or digital signals equally well in either
direction. This switch operates from a single +9V to
+36V supply, or from ±4.5V to ±20V dual supplies. The
primary application areas are in the switching and routing of signals in telecommunications and test equipment.
The MAX4649 features a switch transition time of 130ns
max at +25°C, and a guaranteed break-before-make
switching time of 5ns. Off-leakage current is only 2nA
max at +25°C.
The MAX4649 is available in a tiny 8-pin SOT23 package.
Applications
PBX, PABX Systems
Communication Systems
DSL
Test Equipment
Avionics
Audio Systems
Redundant Systems
Relay Replacement
PC Multimedia Boards
Features
♦ Low On-Resistance 45Ω max ±15V Supplies
♦ 5Ω max R
ON
Match Between Channels
♦ Guaranteed R
ON
Flatness Over Specified Signal
Range (7Ω max)
♦ V
L
Logic Supply Not Required
♦ Rail-to-Rail Signal Handling
♦ +9V to +36V Single Supply Operation
♦ ±4.5V to ±20V Dual Supply Operation
♦ Low Crosstalk: -92dB at 1MHz
♦ High Off-Isolation: -92dB at 1MHz
♦ TTL/CMOS-Compatible Control Inputs
45Ω, SPDT Analog Switch in SOT23-8
MAX4649
________________________________________________________________ Maxim Integrated Products 1
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.
Pin Configuration
Ordering Information
Rail-to-Rail is a registered trademark of Nippon Motorola, Inc.
PART
MAX4649E KA- T- 40°C to + 85°C 8-SOT23 AAIE
TEMP.
RANGE
PINPA CK A G E
TOP
M ARK
MAX4649
45Ω, SPDT Analog Switch in SOT23-8
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.
V+ ........................................................................-0.3V to +44.0V
V- .........................................................................-44.0V to +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 ..............................±10mA
Continuous Current (COM, NO, NC) ................................±30mA
Peak Current (COM, NO, NC)
(pulsed at 1ms, 10% duty cycle)..................................±60mA
Continuous Power Dissipation (T
A
= +70°C)
8-Pin SOT23 (derate 8.9mW/°C above +70°C)...........714mW
Operating Temperature Range
MAX4649EKA ............................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
Note 1: Signals on NO, NC, COM, or IN exceeding V+ or V- are clamped by internal diodes. Limit forward-diode current to maxi-
mum current rating.
)
)
(Voltages referenced to GND.)
PARAMETER SYMBOL CONDITIONS T
ANALOG SWITCH
,
V
NO
,
Analog Signal Range
On-Resistance R
On-Resistance Matching Between
Channels
On-Resistance Flatness
(Note 4)
NO or NC Off-Leakage
Current
V
NC
V
COM
ON
∆R
ON
R
FLAT
(ON)
I
NO(OFF)
or
I
NC(OFF
I
V
I
V
I
V
V
V
-14V
= 1mA; V
COM
= ±10V
NC
= 1mA; VNO or
COM
= ±10V
NC
= 1mA; V
COM
= +5V, 0, -5V
NC
= -14V, +14V;
COM
or VNC = +14V,
NO
A
NO
or
+25°C3345
T
to T
MIN
MAX
+25°C 0.6 5
T
to T
MIN
MAX
NO
or
+25°C 1.5 7
T
to T
MIN
MAX
+25°C -2 0.01 2
T
to T
MIN
MAX
MIN TYP MAX UNITS
V- V+ V
60
6
10
-10 10
Ω
Ω
Ω
nA
COM On-Leakage
Current
I
COM(ON
V
= +14V, -14V;
COM
or VNC = +14V,
V
NO
-14V or floating
+25°C-4 4
T
MIN
to T
MAX
-20 20
DIGITAL I/O
Input Logic High Voltage V
Input Logic Low Voltage V
Input Leakage I
IH
IL
IN
VIN = 0 or +5V -1 1 µA
2.4 V
nA
0.8 V
MAX4649
45Ω, SPDT Analog Switch in SOT23-8
_______________________________________________________________________________________ 3
)
)
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)
PARAMETER SYMBOL CONDITIONS T
DYNAMIC CHARACTERISTICS
VNO or V
Transition Time t
TRANS
R
C
VNO or V
Break-Before-Make Delay t
R
D
C
V
Charge Injection Q
C
Figure 4
f = 1MHz, RL = 50Ω,
Off-Isolation V
ISO
C
V
Figure 5
Crosstalk
Total Harmonic Distortion THD
C
V
or V
NC
Off-Capacitance
NO
COM On-Capacitance C
NO(OFF)
C
NC(OFF
COM(ON
f = 1MHz, R
C
f = 20Hz to 20kHz,
R
,
f = 1MHz; Figure 7 6 pF
f = 1MHz; Figure 8 17 pF
POWER SUPPLY
Power-Supply Range ±4.5 ±20 V
VIN = 5V
Positive Supply Current I+
V
Negative Supply Current I- VIN = 0 or 5V
= ±10V;
NC
NC
= 0; R
= 1V
= ±10V;
GEN
;
RMS
= 50Ω,
L
RMS
= 1kΩ;
L
= 35pF; Figure 2
L
= 300Ω;
L
= 35pF; Figure 3
L
GEN
= 1nF;
L
= 5pF,
L
COM
= 5pF; Figure 6
L
= 600Ω, 5V
L
= 0 or V+
IN
A
MIN TYP MAX UNITS
+25°C 90 130
T
MIN
to T
MAX
170
+25°C510
T
MIN
to T
MAX
2
= 0;
2pC
92 dB
92
0.015 %
+25°C3875
T
MIN
to T
MAX
100
+25°C 0.01 1
T
MIN
to T
MAX
10
+25°C 0.01 1
T
MIN
to T
MAX
10
ns
ns
µA
µA
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