MAX4717 Maxim, MAX4717 Datasheet - Page 10

• Manufacturer Part Number: MAX4717
• Description: The MAX4717/MAX4718 low-voltage, low on-resistance (RON), dual single-pole/double-throw (SPDT) analog switches operate from a single +1
• Manufacturer: Maxim

The MAX4717/MAX4718 high-speed, low-voltage, low on-
resistance (R
from a single +1.8V to +5.5V supply. The switches feature
break-before-make switching operation and fast switch-
ing speeds (t
These switches have low 15pF on-channel capaci-
tance, which allows for 12Mbps switching of the data
signals for USB 1.0/1.1 applications. The MAX4717 is
designed to switch D+ and D- USB signals with a guar-
anteed skew of less than 2ns (see Figure 4) as mea-
sured from 50% of the input signal to 50% of the output
signal.
4.5 /20 , 300MHz Bandwidth, Dual SPDT
Analog Switches in UCSP
10
UCSP
C1
C2
C3
C4
A1
A2
A3
A4
B1
B4
—
______________________________________________________________________________________
PIN
µMAX/
TDFN
10
—
7
8
9
6
1
5
4
3
2
ON
ON
= 80ns (max), t
), dual SPDT analog switches operate
NAME
COM2
COM1
GND
NC2
NO2
NC1
NO1
IN2
IN1
V+
EP
Detailed Description
Analog Switch 2—Normally Closed
Terminal
Analog Switch 2—Digital Control
Input
Analog Switch 2—Common
Terminal
Analog Switch 2—Normally Open
Terminal
Ground. Connection.
Positive-Supply Voltage
Analog Switch 1—Normally Closed
Terminal
Analog Switch 1—Digital Control
Input
Analog Switch 1—Common
Terminal
Analog Switch 1—Normally Open
Terminal
Exposed Pad (for TDFN package
only). Connect to ground.
OFF
Pin Description
= 40ns (max)).
FUNCTION
The MAX4717/MAX4718 logic inputs accept up to
+5.5V regardless of supply voltage. For example, with
a +3.3V supply, IN_ can be driven low to GND and high
to +5.5V allowing for mixing of logic levels in a system.
Driving the control logic inputs rail-to-rail minimizes
power consumption. For a +3V supply voltage, the
logic thresholds are 0.5V (low) and 1.4V (high); for a
+5V supply voltage, the logic thresholds are 0.8V (low)
and 2.0V (high).
The on-resistance of the MAX4717/MAX4718 changes
very little for analog input signals across the entire supply
voltage range (see the Typical Operating Characteristics).
The switches are bidirectional, so the NO_, NC_, and
COM_ pins can be either inputs or outputs.
Caution: Do not exceed the absolute maximum rat-
ings because stresses beyond the listed ratings
may cause permanent damage to the device.
Proper power-supply sequencing is recommended for
all CMOS devices. Always apply V+ before applying
analog signals, especially if the analog signal is not
current-limited.
For the latest application details on UCSP construction,
dimensions, tape carrier information, printed circuit
board techniques, bump-pad layout, and recommend-
ed reflow temperature profile as well as the latest infor-
mation on reliability testing results, go to the Maxim
web site at www.maxim-ic.com/ucsp to find the
Application Note: USCP—A Wafer-Level Chip-Scale
Package.
TRANSISTOR COUNT: 235
PROCESS: BiCMOS
UCSP Application Information
Applications Information
Power-Supply Sequencing and
Overvoltage Protection
Digital Control Inputs
Analog Signal Levels
Chip Information