19-2042; Rev 1; 2/03
2.5Ω, Low-Voltage, SPST/SPDT
Analog Switches in UCSP Package
General Description
Features
The MAX4686/MAX4687/MAX4688 low on-resistance
ꢀ 6-Bump, 0.5mm Pitch, UCSP
(R ), low-voltage analog switches operate from a sin-
ON
ꢀ R
ON
gle +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) ana-
log 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.
2.5Ω max (+3V Supply)
10Ω max (+1.8V Supply)
ꢀ 0.4Ω max R
Match Between Channels
ON
ꢀ 1Ω max R
Flatness Over Signal Range
ON
ꢀ Low Leakage Currents Over Temperature
When powered from a 3V supply these devices feature
0.5nA (max) at T = +25°C
A
2.5Ω (max) R , with 0.4Ω (max) R
matching and 1Ω
ON
ON
(max) flatness. The MAX4686/MAX4687/MAX4688 offer
ꢀ Fast Switching: t
= 30ns, t
= 12ns
ON
OFF
fast switching speeds (t
= 30ns max, t
= 12ns
OFF
ON
max). The MAX4688 offers break-before-make action.
ꢀ Guaranteed Break-Before-Make (MAX4688)
ꢀ +1.8V to +5.5V Single-Supply Operation
ꢀ Rail-to-Rail® Signal Handling
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.
ꢀ Low Crosstalk: -95dB (100kHz)
ꢀ High Off-Isolation: -90dB (100kHz)
ꢀ 1.8V Logic Compatible
________________________Applications
MP3 Players
Cellular Phones
Power Routing
Ordering Information
Battery-Operated Equipment
Relay Replacement
Audio and Video Signal Routing
Communications Circuits
PCMCIA Cards
TEMP
RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
BUMP-
TOP
MARK
AAI
AAJ
AAK
PART
PACKAGE
6 UCSP-6
6 UCSP-6
6 UCSP-6
MAX4686EBT-T
MAX4687EBT-T
MAX4688EBT-T
Cellular Phones
Hard Drives
Pin Configurations/Functional Diagrams/Truth Table
TOP VIEW
B1
A1
B1
A1
B1
A1
V+
NO
V+
NC
I.C.
V+
IN
NO
SWITCHES SHOWN FOR LOGIC "0"
B2
B3
A2
A3
IN
B2
B3
A2
A3
B2
B3
A2
A3
IN
I.C.
COM
NC
MAX4686/MAX4687/MAX4688
IN
NO
OFF
ON
NC
ON
GND
0
1
GND
COM
COM
GND
OFF
MAX4686
SPST NO
MAX4687
SPST NC
MAX4688
SPDT
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
UCSP is a trademark of Maxim Integrated Products, Inc.
________________________________________________________________ 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.