MAX4947 Maxim, MAX4947 Datasheet

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MAX4947

Manufacturer Part Number
MAX4947
Description
The MAX4947/MAX4948 analog switches operate from a single +1
Manufacturer
Maxim
Datasheet
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™).
19-0673; Rev 1; 1/07
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.
USB Signal Switching
UART Signal Switching
SDIO/Memory Stick
________________________________________________________________ Maxim Integrated Products
COM1
COM2
COM3
COM4
COM5
COM6
General Description
Cell Phones
PDAs
MAX4947
GND
V
CC
Applications
S1
S2
S3
S4
S5
S6
CB12
NO1
NC1
NO2
NC2
CB34
NO3
NC3
NO4
NC4
CB56
NO5
NC5
NO6
NC6
♦ 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
Hex SPDT Data Switch
* Future product—contact factory for availability.
+ Denotes lead-free package.
EP = Exposed paddle.
Typical Operating Circuit appears at end of data sheet.
MAX4947EBA+* -40°C to +85°C
MAX4947ETG+
MAX4948EBA+* -40°C to +85°C
MAX4948ETG+
24-TQFN (4mm x 4mm)
PART
COM1
COM2
COM3
COM4
COM5
COM6
EN
-40°C to +85°C
-40°C to +85°C
MAX4948
RANGE
TEMP
GND
V
Ordering Information
CC
Functional Diagram
S1
S2
S3
S4
S5
S6
PIN-
PACKAGE
25 UCSP-25
24 TQFN-EP
25 UCSP-25
24 TQFN-EP
CB
NO1
NC1
NO2
NC2
NO3
NC3
NO4
NC4
NO5
NC5
NO6
NC6
Features
T2444-4
T2444-4
CODE
B25-1
B25-1
PKG
1

Related parts for MAX4947

MAX4947 Summary of contents

Page 1

... 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. ...

Page 2

... 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 ...

Page 3

ELECTRICAL CHARACTERISTICS (continued +2.7V to +5.5V -40°C to +85°C, unless otherwise noted. Typical values are PARAMETER SYMBOL COM_ Off-Leakage Current I COM DYNAMIC Turn-On Time Turn-Off Time Break-Before-Make HIGH-SPEED TIMING CHARACTERISTICS (rising ...

Page 4

... ON ON Note 5: Δ ON(MAX) ON(MIN) 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, not production tested. Note 8: Off-Isolation = 20log [V 10 COM_ Note 9: Between any two switches 3V +25° ...

Page 5

T = +25°C, unless otherwise noted CHARGE INJECTION vs. V COM 1nF (V) COM ...

Page 6

... Hex SPDT Data Switch PIN MAX4947 MAX4948 TQFN UCSP TQFN — A1, C3 — — ...

Page 7

... OFF 1 ON CB56 NO5/NO6 NC5/NC6 0 OFF 1 ON _______________________________________________________________________________________ Hex SPDT Data Switch Pin Configurations/Truth Tables TOP VIEW NO1 19 COM1 20 GND 21 MAX4947 COM6 23 + NO6 TQFN 4mm x 4mm *EXPOSED PADDLE CONNECT TO GROUND TOP VIEW NO1 19 COM1 20 GND 21 MAX4948 ...

Page 8

... The MAX4947/MAX4948 have a guaranteed 4Ω (typ) on- resistance and a low 30pF (typ) capacitance that makes the switch ideal for data switching applications. The MAX4947 has three logic inputs to control two switches in pairs and the MAX4948 has one logic control input and an enable input (EN) to disable the switches. ...

Page 9

... V MAX4947/ CC MAX4948 V CC NC_ V N_ COM_ NO_ CB_ LOGIC GND INPUT C INCLUDES FIXTURE AND STRAY CAPACITANCE. L Figure 2. Break-Before-Make-Interval TxD TxD 39Ω 50pF DELAY DUE TO SWITCH FOR RISING INPUT AND RISING OUTPUT SIGNALS DELAY DUE TO SWITCH FOR FALLING INPUT AND FALLING OUTPUT SIGNALS. ...

Page 10

... CB_ CB_ NETWORK ANALYZER 50Ω V CB_ MEAS V OUT NO1* 50Ω 10nF V CC COM_ MAX4947/ MAX4948 CB_ NC_ or NO_ GND ΔV OUT OFF OFF ON ON OFF OFF Q = (ΔV )(C ) OUT L LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES THAT HAVE THE OPPOSITE LOGIC SENSE. ...

Page 11

CB CLK NO1 NC1 CMD NO2 NC2 DAT0 NO3 NC3 SD I/O 1 DAT1 NO4 NC4 DAT2 NO5 NC5 DAT3 NO6 NC6 CLK CMD DAT0 SD I/O 2 DAT1 DAT2 DAT3 ______________________________________________________________________________________ Hex SPDT Data Switch Typical Operating Circuit V ...

Page 12

... Hex SPDT Data Switch (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) 12 ______________________________________________________________________________________ Package Information PACKAGE OUTLINE, 5x5 UCSP 1 21-0096 H 1 ...

Page 13

... Revision History Pages changed at Rev 1: 1. Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 13 © ...

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