MAX4947 Datasheet, PDF (1/13 Pages) Maxim Integrated Products – Hex SPDT Data Switch

19-0673; Rev 1; 1/07
EVAALVUAAILTAIOBNLEKIT
Hex SPDT Data Switch
General Description
The MAX4947/MAX4948 analog switches operate from a
single +1.8V to +5.5V supply. These switches feature a
low 30pF (typ) capacitance for high-speed data switch-
ing applications.
The MAX4947 is a triple double-pole/double-throw (DPDT)
switch, and the MAX4748 is a hex single-pole/double-
throw (SPDT) switch with one control logic input. The
MAX4947 has three logic inputs to control the switches in
pairs. The MAX4948 has one logic input and an enable
input (EN) to disable the switches.
The MAX4947/MAX4948 are available in small 24-pin
(4mm x 4mm) TQFN and 25-bump (2.5mm x 2.5mm)
chip-scale packages (UCSP™).
Applications
USB Signal Switching
UART Signal Switching
SDIO/Memory Stick
Cell Phones
PDAs
UCSP is a trademark of Maxim Integrated Products, Inc.
COM1
COM2
COM3
COM4
COM5
COM6
V_CC
CB12
NO1
S1
NC1
NO2
S2
NC2
CB34
NO3
S3
NC3
NO4
S4
NC4
CB56
NO5
S5
NC5
NO6
S6
NC6
MAX4947
GND
Features
♦ Multiplex SDIO or Memory Stick Interfaces
♦ 1.8V to 5.5V Supply Voltage Range
♦ Low On-Resistance 4Ω (typ)
♦ Low-Capacitance Switches, 30pF (typ)
♦ Rail-to-Rail Signal Handling
♦ Small 25-Bump UCSP™ (2.5mm x 2.5mm) and
24-TQFN (4mm x 4mm)
Ordering Information
PART
TEMP
RANGE
PIN-
PACKAGE
PKG
CODE
MAX4947EBA+* -40°C to +85°C 25 UCSP-25 B25-1
MAX4947ETG+ -40°C to +85°C 24 TQFN-EP T2444-4
MAX4948EBA+* -40°C to +85°C 25 UCSP-25 B25-1
MAX4948ETG+ -40°C to +85°C 24 TQFN-EP T2444-4
* Future product—contact factory for availability.
+ Denotes lead-free package.
EP = Exposed paddle.
Typical Operating Circuit appears at end of data sheet.
Functional Diagram
COM1
COM2
V_CC
CB
NO1
S1
NC1
NO2
S2
NC2
COM3
COM4
NO3
S3
NC3
NO4
S4
NC4
COM5
COM6
EN
NO5
S5
NC5
NO6
S6
NC6
MAX4948
GND
________________________________________________________________ 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.