MAX4738 Datasheet, PDF (1/15 Pages) Maxim Integrated Products – 4.5 Quad SPST Analog Switches in UCSP

19-2633; Rev 0; 10/02
4.5Ω Quad SPST Analog Switches in UCSP
General Description
The MAX4737/MAX4738/MAX4739 low-voltage, low on-
resistance (R_ON), quad 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 MAX4737/MAX4738/MAX4739 feature 4.5Ω R_ON
(max) with 1.2Ω flatness and 0.4Ω 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 compati-
ble 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 2mm ✕ 2mm area and
has a 4 ✕ 4 bump array with a bump pitch of 0.5mm.
These switches are also available in a 14-pin TSSOP
package.
Features
o USB 1.1 Signal Switching
o 2ns (max) Differential Skew
o -3dB Bandwidth: >300MHz
o Low 20pF On-Channel Capacitance
o Low R_ON
4.5Ω (max) (+3V Supply)
3Ω (max) (+5V Supply)
o 0.4Ω (max) R_ON Match (+3V Supply)
o 1.2Ω (max) R_ON Flatness (+3V Supply)
o <0.5nA Leakage Current at +25°C
o High Off-Isolation: -55dB (10MHz)
o Low Crosstalk: -80dB (10MHz)
o Low Distortion: 0.03%
o +1.8V CMOS-Logic Compatible
o Single-Supply Operation from +1.8V to +5.5V
o Rail-to-Rail^® Signal Handling
Applications
Ordering Information
Battery-Operated Equipment
Audio/Video-Signal Routing
Low-Voltage Data-Acquisition Systems
Sample-and-Hold Circuits
Data-Acquisition Systems
Communications Circuits
PART
TEMP RANGE
MAX4737EUD
MAX4737EBE-T*
MAX4738EUD
MAX4738EBE-T*
MAX4739EUD
MAX4739EBE-T*
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN/BUMP-
PACKAGE
14 TSSOP
16 UCSP-16
14 TSSOP
16 UCSP-16
14 TSSOP
16 UCSP-16
TOP
MARK
—
4737
—
4738
—
4739
UCSP is a trademark of Maxim Integrated Products, Inc.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
Note: UCSP package requires special solder temperature pro-
file described in the Absolute Maximum Ratings section.
*UCSP reliability is integrally linked to the user’s assembly meth-
ods, circuit board material, and environment. See the UCSP reli-
ability notice in the UCSP Reliability section of this data sheet for
more information.
Pin Configurations/Functional Diagrams/Truth Tables
TOP VIEW
(BUMPS SIDE DOWN)
MAX4737
1
2
3
4
A
IN2 IN3
B
COM2
C
NO2 V+
D
COM1 NO1
NO3 COM3
GND COM4
NO4
IN1 IN4
UCSP
MAX4738
1
2
3
4
A
IN2 IN3
B
COM2
C
NC2 V+
D
COM1 NC1
NC3 COM3
GND COM4
NC4
IN1 IN4
UCSP
MAX4739
1
2
3
4
A
IN2 IN3
B
COM2
C
NC2 V+
D
COM1 NO1
NO3 COM3
GND COM4
NC4
IN1 IN4
UCSP
IN_ NO_ NC_
LOW OFF ON
HIGH ON OFF
________________________________________________________________ Maxim Integrated Products 1
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