19-2632; Rev 0; 10/02
4.5Ω Dual SPST Analog Switches in UCSP
Features
o
o
o
o
o
USB 1.1 Signal Switching
<2ns Differential Skew
-3dB Bandwidth: >300MHz
Low 15pF On-Channel Capacitance
Low RON (max) Switches
4.5Ω (max) (+3V Supply)
3Ω (max) (+5V Supply)
o
o
o
o
o
o
o
o
o
0.3Ω (max) RON Match (+3V Supply)
1.2Ω (max) RON Flatness (+3V Supply)
<0.5nA Leakage Current at TA = +25°C
High Off-Isolation: -55dB (10MHz)
Low Crosstalk: -80dB (10MHz)
Low Distortion: 0.03%
+1.8V CMOS-Logic Compatible
Single-Supply Operation from +1.8V to +5.5V
Rail-to-Rail® Signal Handling
Applications
Ordering Information
Battery-Operated Equipment
TEMP RANGE
PART
Audio/Video-Signal Routing
PIN/BUMPPACKAGE
Low-Voltage Data-Acquisition Systems
MAX4721EUA
-40°C to +85°C
8 µMAX
Sample-and-Hold Circuits
MAX4721EBL-T*
-40°C to +85°C
9 UCSP-9
MAX4722EUA
-40°C to +85°C
8 µMAX
MAX4722EBL-T*
-40°C to +85°C
9 UCSP-9
MAX4723EUA
-40°C to +85°C
8 µMAX
MAX4723EBL-T*
-40°C to +85°C
9 UCSP-9
Communications Circuits
TOP
MARK
—
ABP
—
ABQ
—
ABR
Note: UCSP package requires special solder temperature profile described in the Absolute Maximum Ratings section.
*UCSP reliability is integrally linked to the user’s assembly methods, circuit board material, and environment. See the UCSP reliability notice in the UCSP Reliability section of this data sheet for
more information.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
UCSP is a trademark of Maxim Integrated Products, Inc.
Pin Configurations/Functional Diagrams/Truth Tables
MAX4722
MAX4721
TOP VIEW
1
2
3
IN2
GND
NO2
MAX4723
1
2
3
IN2
GND
1
NC2
2
3
IN2
GND
NC2
(BUMP SIDE DOWN)
A
A
B
A
B
COM1
COM2
C
B
COM1
COM2
C
NO1
V+
UCSP
IN1
COM1
COM2
IN_
LOW
HIGH
NO_
OFF
ON
NC_
ON
OFF
C
NC1
V+
UCSP
IN1
NO1
V+
IN1
UCSP
________________________________________________________________ Maxim Integrated Products
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.
1
MAX4721/MAX4722/MAX4723
General Description
The MAX4721/MAX4722/MAX4723 low-voltage, low onresistance (RON), dual single-pole/single throw (SPST)
analog switches operate from a single +1.8V to +5.5V
supply. These devices are designed for USB 1.1 and
audio switching applications.
The MAX4721/MAX4722/MAX4723 feature 4.5Ω RON
(max) with 1.2Ω flatness and 0.3Ω matching between
channels. These new switches feature guaranteed
operation from +1.8V to +5.5V and are fully specified at
3V and 5V. These switches offer break-before-make
switching (1ns) with t ON <80ns and t OFF <40ns at
+2.7V. The digital logic inputs are +1.8V logic compatible with a +2.7V to +3.6V supply.
These switches are packaged in a chip-scale package
(UCSP™), significantly reducing the required PC board
area. The chip occupies only a 1.52mm ✕ 1.52mm area
and has a 3 ✕ 3 bump array with a bump pitch of
0.5mm. These switches are also available in an 8-pin
µMAX package.
