MAXIM MAX4686, MAX4687, MAX4688 Technical data
General Description
The MAX4686/MAX4687/MAX4688 low on-resistance
(RON), low-voltage analog switches operate from a single +1.8V to +5.5V supply. The MAX4686/MAX4687 are
single-pole/single-throw (SPST) analog switches, and
the MAX4688 is a single-pole/double-throw (SPDT) analog switch. The MAX4686 is a normally open (NO)
switch, and the MAX4687 is a normally closed (NC)
switch. The MAX4688 has one normally open (NO)
switch and one normally closed (NC) switch.
When powered from a 3V supply these devices feature
2.5Ω (max) RON, with 0.4Ω (max) RONmatching and 1Ω
(max) flatness. The MAX4686/MAX4687/MAX4688 offer
fast switching speeds (tON= 30ns max, t
OFF
= 12ns
max). The MAX4688 offers break-before-make action.
The digital logic inputs are 1.8V logic compatible from a
+2.7V to +3.3V supply. The MAX4686/MAX4687/
MAX4688 are available in the chip-scale package
(UCSP™), significantly reducing the required PC board
area. The chip occupies only a 1.50mm x 1.02mm area.
The 3 x 2 array of solder bumps are spaced with a
0.5mm bump pitch.
________________________Applications
MP3 Players
Cellular Phones
Power Routing
Battery-Operated Equipment
Relay Replacement
Audio and Video Signal Routing
Communications Circuits
PCMCIA Cards
Cellular Phones
Hard Drives
Features
♦ 6-Bump, 0.5mm Pitch, UCSP
♦ R
ON
2.5Ω max (+3V Supply)
10Ω max (+1.8V Supply)
♦ 0.4Ω max RONMatch Between Channels
♦ 1Ω max RONFlatness Over Signal Range
♦ Low Leakage Currents Over Temperature
0.5nA (max) at TA= +25°C
♦ Fast Switching: tON= 30ns, t
OFF
= 12ns
♦ Guaranteed Break-Before-Make (MAX4688)
♦ +1.8V to +5.5V Single-Supply Operation
♦ Rail-to-Rail®Signal Handling
♦ Low Crosstalk: -95dB (100kHz)
♦ High Off-Isolation: -90dB (100kHz)
♦ 1.8V Logic Compatible
MAX4686/MAX4687/MAX4688
2.5Ω, Low-Voltage, SPST/SPDT
Analog Switches in UCSP Package
________________________________________________________________ Maxim Integrated Products 1
Pin Configurations/Functional Diagrams/Truth Table
19-2042; Rev 1; 2/03
Ordering Information
PART
TEMP
RANGE
BUMP-
TOP
MARK
MAX4686EBT-T
6 UCSP-6
AAI
MAX4687EBT-T
6 UCSP-6
AAJ
MAX4688EBT-T
6 UCSP-6
AAK
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
UCSP is a trademark of Maxim Integrated Products, Inc.
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.
PACKAGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TOP VIEW
IN
B1
B2
B3
SPST NO
A1
NOV+
A2
I.C.
A3
COMGND
MAX4686
V+
IN
GND
B1
B2
B3
MAX4687
SPST NC
A1
NC
A2
I.C.
A3
COM
GND
B1
V+
B2
IN
B3
MAX4688
SPDT
A1
NO
A2
COM
A3
NC
SWITCHES SHOWN FOR LOGIC "0"
MAX4686/MAX4687/MAX4688
IN
NO
OFF
0
1
ON
NC
ON
OFF
MAX4686/MAX4687/MAX4688
2.5Ω, Low-Voltage, SPST/SPDT
Analog Switches in UCSP Package
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V+ = +2.7V to +3.3V, VIH= +1.4V, VIL= 0.5V, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at 3V and TA= +25°C.)
(Notes 3, 4)
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.
All Voltages Referenced to GND
V+, IN .......................................................................-0.3V to +6V
COM, NO, NC (Note1)..................................-0.3V to (V+ + 0.3V)
Continuous Current NO, NC, COM ................................±100mA
Peak Current NO, NC, COM
(pulsed at 1ms, 10% duty cycle) ...............................±200mA
Continuous Power Dissipation (TA= +70°C)
3 x 2 UCSP (derate 10.1mW/°C at +70°C) ..................808mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range ............................-65°C to +150°C
Bump Reflow Temperature .............................................+235°C
)
)
)
Note 1: Signals on NO, NC, and COM exceeding V+ are clamped by an internal diode. Limit forward-diode current to maximum cur-
rent rating.
Note 2: This device is constructed using a unique set of packaging techniques that impose a limit on the thermal profile the device
can be exposed to during board level solder attach and rework. This limit permits only the use of the solder profiles recommended in the industry standard specification, JEDEC 020A, paragraph 7.6, Table 3 for IR/VPR and convection reflow.
Preheating is requied. Hand or wave soldering is not allowed.
PARAMETER SYMBOL CONDITIONS T
ANALOG SWITCH
V
, VNO,
Analog Signal Range
On-Resistance R
COM
V
NC
ON
V+ = 2.7V, VNC = 0 to V+,
= 10mA
I
COM
MIN TYP MAX U N IT S
A
T
to
MIN
T
MAX
0V+V
+25°C 1.5 2.5
T
to
MIN
T
MAX
3.5
Ω
On-Resistance Match
Between Channels
(MAX4688 only)
(Note 5)
On-Resistance Flatness
(Note 6)
NO, NC Off-Leakage
Current (Note 7)
COM Off-Leakage
Current (Note 7)
COM On-Leakage
Current (Note 7)
∆R
ON
R
FLAT(ON
I
NO(OFF)
I
NC(OFF)
I
COM_(OFF
I
COM_(ON
V+ = 2.7V, VNO or VNC = 1.5V,
= 10mA
I
COM
V+ = 2.7V, VNO or VNC = 0 to V+,
= 10mA
I
COM
,
V+ = 3.3V; V
or VNC = 3V, 0.3V
V
NO
V+ = 3.3V; V
or VNC = 3V, 0.3V
V
NO
V+ = 3.3V; V
V
or VNC = 3V, 0.3V, or floating
NO
= 0.3V or 3V;
COM
= 0.3V or 3V;
COM
= 3V or 0.3V;
COM
+25°C 0.3 0.4
T
to
MIN
T
MAX
+25°C 0.5 1
T
to
MIN
T
MAX
+25°C -0.5 ±0.01 +0.5
T
to
MIN
T
MAX
-1 1
+25°C -0.5 ±0.01 0.5
T
to
MIN
T
MAX
-1 1
+25°C -0.5 ±0.01 0.5
T
to
MIN
T
MAX
-1 1
DYNAMIC CHARACTERISTICS
+25°C2030
Turn-On Time (Note 7) t
ON
VNO or VNC = 1.5V, Figure 2
T
MIN
T
to
MAX
0.5
1
35
Ω
Ω
nA
nA
nA
ns
MAX4686/MAX4687/MAX4688
2.5Ω, Low-Voltage, SPST/SPDT
Analog Switches in UCSP Package
_______________________________________________________________________________________ 3
Note 3: 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 4: UCSP parts are 100% tested at +25°C only and guaranteed by correlation at the full hot-rated temperature.
Note 5: ∆R
ON
= R
ON(MAX
) - R
ON(MIN)
, between switches.
Note 6: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the
specified analog signal ranges.
Note 7: Guaranteed by design.
Note 8: Off Isolation = 20log
10(VCOM
/ VNO), V
COM
= output, VNO= input to off switch.
Note 9: Between switches.
)
)
)
ELECTRICAL CHARACTERISTICS (continued)
(V+ = +2.7V to +3.3V, VIH= +1.4V, VIL= 0.5V, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at 3V and TA= +25°C.)
(Notes 3, 4)
PARAMETER SYMBOL CONDITIONS T
Turn-Off Time (Note 7) t
Break-Before-Make
(MAX4688 only) (Note 7)
OFF
t
BBM
Charge Injection Q
On-Channel -3dB
Bandwidth
BW
Off-Isolation (Note 8) V
Crosstalk (MAX4688
only) (Note 9)
Total Harmonic
Distortion
NO, NC OffCapacitance
COM Off-Capacitance C
Switch On-Capacitance C
V
THD R
C
NO(OFF
C
NC(OFF
COM(OFF
(ON)
ISO
CR
VNO or VNC = 1.5V, Figure 2
VNO, VNC = 1.5V, Figure 3
V
= 0, R
GEN
C
= 1.0nF, Figure 4
L
Signal = 0dBm, 50Ω in and out,
Figure 5
CL = 5pF, RL = 50Ω, f = 100kHz,
Figure 5
CL = 5pF, RL = 50Ω, f = 100kHz,
Figure 5
= 600Ω, 2Vp-p, f = 20Hz to 20kHz +25°C 0.06 %
L
,
f = 1MHz, Figure 6 +25°C12 pF
f = 1MHz, Figure 6 +25°C12 pF
f = 1MHz, Figure 6 +25°C35 pF
DIGITAL I/O
Input Logic High V
Input Logic Low V
Logic Input
Leakage Current
IH
IL
I
, I
IH
IL
VIN = 0 or V+
POWER SUPPLY
Power-Supply Range V+
Supply Current I+ V+ = 3.3V, VIN = 0 or V+
GEN
= 0,
MIN TYP MAX UNITS
A
+25°C1012
T
to
MIN
T
MAX
15
+25°C8
T
to
MIN
T
MAX
2
+25°C40 pC
+25°C 200 MHz
+25°C -90 dB
+25°C -95 dB
T
to
T
T
T
T
MIN
T
MIN
T
MIN
T
MIN
T
MIN
T
MAX
MAX
MAX
MAX
MAX
1.4 V
to
to
-1 1 µA
to
1.8 5.5 V
to
-1 1 µA
0.5 V
ns
ns
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