Datasheet UM4258Q Rev05

UM4258Q
4.5Ω 300MHz Bandwidth Dual SPDT Analog Switch
UM4258Q QFN10 1.80×1.40
General Description
The UM4258Q low-voltage, low on-resistance (RON), dual single-pole/double-throw (SPDT)
analog switch operates from a single +1.8V to +5.5V supply. The device is designed for USB
1.1/2.0 and audio switching applications.
The UM4258Q features two 4.5Ω RON(max) SPDT switches with 1.2Ω flatness and 0.3Ω
matching between channels. The switch offers break-before-make switching (1ns) with tON<80ns
and tOFF<40ns at +2.7V. The digital logic inputs are +1.8V logic compatible with a +2.7V to
+3.6V supply.
The UM4258Q is packaged in a 1.80mm×1.40mm QFN10 package, which significantly reducing
the required PC board area.
Applications
Features












USB 1.1/2.0 Signal Switching Circuits
Battery-Operated Equipment
Audio/Video-Signal Routing
Headphone Switching
Low-Voltage Data-Acquisition
Systems
Sample-and-Hold Circuits
Cell Phones
PDAs
Pin Configurations







2ns (Max) Differential Skew
-3dB Bandwidth: 300MHz
Low 15pF On-Channel Capacitance
Single-Supply Operation from +1.8V to
+5.5V
4.5Ω RON (Max) Switches
0.3Ω (Max) RON Match (+3.0V Supply)
1.2Ω (Max) Flatness (+3.0V Supply)
Rail-to-Rail Signal Handling
High Off-Isolation: -55dB (10MHz)
Low Crosstalk: -80dB (10MHz)
Low Distortion: 0.03%
+1.8V CMOS-Logic Compatible
< 0.5nA Leakage Current at +25°C
Top View
NO1
V+
2
1
COM1
3
10
IN1
4
9
COM2
NC1
5
8
IN2
6
7
GND
NC2
NO2
AN
M
(Top View)
M: Month Code
UM4258Q
QFN10 1.80×1.40
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UM4258Q
Pin Description
Pin Number
7
8
9
10
6
1
5
4
3
2
Name
NC2
IN2
COM2
NO2
GND
V+
NC1
IN1
COM1
NO1
Function
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
Ordering Information
Part Number
Packaging Type
Marking Code
UM4258Q
QFN10 1.80×1.40
AN
Shipping Qty
3000pcs/7 Inch
Tape & Reel
Function Table
IN_
0
1
NO_
OFF
ON
NC_
ON
OFF
Absolute Maximum Ratings
Symbol
V+
VS
IN_
Io
IP
TO
TJ
TSTG
TL
Parameter
Limit
Unit
Supply Voltage
-0.3 to +6.0
DC Switch Voltage (Note 1)
-0.3 to (V++0.3)
V
DC IN Voltage
-0.3 to +6.0
Continuous Current (COM_, NO_, NC_)
±100
mA
Peak Current (Pulsed at 1ms, 10% Duty Cycle)
±200
Operating Temperature Range
-40 to +85
Junction Temperature
+150
Storage Temperature Range
-65 to +150
°C
Junction Lead Temperature (Soldering, 10 Seconds)
+300
Infrared (15s)
+220
TBump
Bump Temperature (Soldering)
Vapor Phase (60s)
+215
PD
Continuous Power Dissipation @ +70°C
909
mW
ESD
ESD Method 3015.7
V
>2000
Note 1: Signals on COM_, NO_, or NC_ exceeding V+ or GND are clamped by internal diodes.
Limit forward-diode current to maximum current rating.
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UM4258Q
DC Electrical Characteristics (Single +3V Supply)
(V+=+2.7V to +3.6V, VIH=+1.4V, VIL=+0.5V, TA=TMIN to TMAX, unless otherwise noted. Typical
values are at V+=+3.0V, TA=+25°C) (Note 2, 3)
Symbol
Parameter
Test Conditions
Temp
Limits
(–40°C to 85°C)
Min
Typ
Unit
Max
DC Electrical Characteristics
VCOM_
VNO_
VNC_
Analog Signal Range
Full
0
V+
V
V+
Power Supply Range
Full
1.8
5.5
V
I+
Supply Current
1
μA
ICOM_(ON)
COM_On Leakage
Current (Note 7)
IOFF
OFF State Leakage
Current (Note 7)
VIH
V+=+5.5V, VIN_=0V or V+
V+=+3.6V,
VCOM_=0.3V, 3.3V;
VNO_ or VNC_=0.3V, 3.3V, or
Floating
V+=+3.6V,
VCOM_=0.3V, 3.3V;
VNO_ or VNC_=3.3V, 0.3V
Full
Room
Full
-1
-2
+0.01
+1
+2
nA
Room
Full
-0.5
-1
+0.01
+0.5
+1
nA
Input High Voltage
Full
1.4
VIL
Input Low Voltage
Full
IIN
Input Leakage Current
V+=+3.6V, VIN_=0 or 5.5V
Full
On-Resistance
(Note 4)
V+=+2.7V, ICOM_=10mA;
VNO_ or VNC_=1.5V
Room
RON
ΔRON
On Resistance Match
Between Channels
(Note 4, 5)
V+=+2.7V, ICOM_=10mA;
VNO_ or VNC_=1.5V
Room
RFLAT
On Resistance Flatness
(Note 6)
V+=+2.7V, ICOM_=10mA;
VNO_ or VNC_=1.0V, 1.5V,
2.0V
Room
V
-100
3.0
Full
V
+100
nA
4.5
Ω
5
0.1
Full
Full
0.5
0.3
0.4
0.6
1.2
1.5
Ω
Ω
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UM4258Q
AC Electrical Characteristics (Single +3V Supply)
(V+=+2.7V to +3.6V, VIH=+1.4V, VIL=+0.5V, TA=TMIN to TMAX, unless otherwise noted. Typical
values are at V+=+3.0V, TA=+25°C) (Note 2, 3)
Symbol
Parameter
Test Conditions
Temp
Limits
(–40°C to 85°C)
Min
Unit
Typ
Max
Room
Full
40
80
100
ns
Room
Full
20
40
50
ns
AC Electrical Characteristics
tON
Turn-On Time
tOFF
Turn-Off Time
tBBM
Break Before Make
Time (Note 7)
VNO_, VNC_=1.5V;
RL=300Ω, CL=35pF, Figure 1;
VIH=1.5V, VIL=0V
VNO_, VNC_=1.5V;
RL=300Ω, CL=35pF, Figure 1;
VIH=1.5V, VIL=0V
VNO_, VNC_=1.5V;
RL=300Ω, CL=35pF, Figure 2
tSKEW
Skew (Note 7)
RS=39Ω, CL=50pF, Figure 3
QINJ
Charge Injection
VISO
VCT
Off Isolation
Crosstalk (Note 8)
BW
-3dB Bandwidth
THD
Total Harmonic
Distortion
CL=1.0nF, Figure 4
VGEN=1.5V, RGEN=0Ω
f=10MHz;
VNO_, VNC_=1VP-P;
RL=50Ω, CL=5pF, Figure 5
f=1MHz;
VNO_, VNC_=1VP-P;
RL=50Ω, CL=5pF, Figure 5
f=10MHz;
VNO_, VNC_=1VP-P;
RL=50Ω, CL=5pF, Figure 5
f=1MHz;
VNO_, VNC_=1VP-P;
RL=50Ω, CL=5pF, Figure 5
Signal=0dBm, RL=50Ω,
CL=5pF, Figure 5
RL=600Ω,
VCOM_=2VP-P
Room
Full
8
ns
1
Full
0.15
Room
5
2
ns
pC
-55
Room
dB
-80
-80
Room
dB
-110
Room
300
MHz
Room
0.03
%
f=1MHz, Figure 6
Room
9
pF
f=1MHz, Figure 6
Room
15
pF
Capacitance
CNO_(OFF)
CNC_(OFF)
C(ON)
NO_, NC_ Off
Capacitance
Switch On
Capacitance
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UM4258Q
DC Electrical Characteristics (Single +5V Supply)
(V+=+4.2V to +5.5V, VIH=+2.0V, VIL=+0.8V, TA=TMIN to TMAX, unless otherwise noted. Typical
values are at V+=+5.0V, TA=+25°C) (Note 2, 3)
Symbol
Parameter
Test Conditions
Temp
Limits
(–40°C to 85°C)
Min
Typ
Unit
Max
DC Electrical Characteristics
VCOM_
VNO_
VNC_
Analog Signal Range
Full
0
V+
V
V+
Power Supply Range
Full
1.8
5.5
V
I+
Supply Current
1
μA
ICOM_(ON)
COM_On Leakage
Current (Note 7)
IOFF
OFF State Leakage
Current (Note 7)
VIH
V+=+5.5V, VIN_=0V or V+
V+=+5.5V,
VCOM_=1.0V, 4.5V;
VNO_ or VNC_=1.0V, 4.5V, or
Floating
V+=+5.5V,
VCOM_=1.0V, 4.5V;
VNO_ or VNC_=1.0V, 4.5V
Full
Room
Full
-1
-2
+0.01
+1
+2
nA
Room
Full
-0.5
-1
+0.01
+0.5
+1
nA
Input High Voltage
Full
2.0
VIL
Input Low Voltage
Full
IIN
Input Leakage Current
V+=+5.5V, VIN_=0 or V+
Full
On-Resistance
(Note 4)
V+=+4.2V, ICOM_=10mA;
VNO_ or VNC_=3.5V
Room
RON
ΔRON
On Resistance Match
Between Channels
(Note 4, 5)
V+=+4.2V, ICOM_=10mA;
VNO_ or VNC_=3.5V
Room
RFLAT
On Resistance Flatness
(Note 6)
V+=+4.2V, ICOM_=10mA;
VNO_ or VNC_=1.0V, 2.0V,
3.5V
Room
V
-100
1.7
Full
V
+100
nA
3
Ω
3.5
0.1
Full
Full
0.8
0.3
Ω
0.4
0.4
1.2
Ω
1.5
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UM4258Q
AC Electrical Characteristics (Single +5V Supply)
(V+=+4.2V to +5.5V, VIH=+2.0V, VIL=+0.8V, TA=TMIN to TMAX, unless otherwise noted. Typical
values are at V+=+5.0V, TA=+25°C) (Note 2, 3)
Symbol
Parameter
Test Conditions
Temp
Limits
(–40°C to 85°C)
Min
Typ
Max
30
80
100
40
50
Unit
AC Electrical Characteristics
Break Before Make
Time (Note 7)
VNO_, VNC_=3.0V;
RL=300Ω, CL=35pF, Figure 1;
VNO_, VNC_=3.0V;
RL=300Ω, CL=35pF, Figure 1;
VNO_, VNC_=3.0V;
RL=300Ω, CL=35pF, Figure 2
Room
Full
Room
Full
Room
Full
tSKEW
Skew (Note 7)
RS=39Ω, CL=50pF, Figure 3
Full
0.15
QINJ
Charge Injection
Room
9
tON
Turn-On Time
tOFF
Turn-Off Time
tBBM
VISO
VCT
Off Isolation
Crosstalk (Note 8)
BW
-3dB Bandwidth
THD
Total Harmonic
Distortion
CL=1.0nF, Figure 4
VGEN=1.5V, RGEN=0Ω
f=10MHz;
VNO_, VNC_=1VP-P;
RL=50Ω, CL=5pF, Figure 5
f=1MHz;
VNO_, VNC_=1VP-P;
RL=50Ω, CL=5pF, Figure 5
f=10MHz;
VNO_, VNC_=1VP-P;
RL=50Ω, CL=5pF, Figure 5
f=1MHz;
VNO_, VNC_=1VP-P;
RL=50Ω, CL=5pF, Figure 5
Signal=0dBm, RL=50Ω,
CL=5pF, Figure 5
RL=600Ω,
VCOM_=2VP-P
20
8
ns
ns
ns
1
2
ns
pC
-55
Room
dB
-80
-80
Room
dB
-110
Room
300
MHz
Room
0.03
%
f=1MHz, Figure 6
Room
9
pF
f=1MHz, Figure 6
Room
15
pF
Capacitance
CNO_(OFF)
CNC_(OFF)
C(ON)
NO_, NC_ Off
Capacitance
Switch On
Capacitance
Note 2: The parts are 100% tested at +25°C only, and guaranteed by design over the specified
temperature range.
Note 3: The algebraic convention used in this data sheet is where the most negative value is a
minimum and the most positive value is a maximum.
Note 4: Guaranteed by design.
Note 5: ΔRON=RON(MAX)-RON(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.
Note 8: Between any two switches.
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UM4258Q
Typical Operating Characteristics
10
OnResistance
Resistancevs.
vs.COM_
COM_Voltage
On
Voltage
10
9
8
V+=1.8V
7
7
6
6
RON()
RON()
HIGH RON SWITCH
9
8
5
V+=2.5V
4
V+=3V
3
V+=1.8V
5
V+=2.5V
4
V+=3V
3
V+=4.2V
2
V+=5V
V+=5V
1
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
VCOM-(V)
VCOM-(V)
OnResistance
Resistance vs.
vs. COM_
COM_Voltage
On
Voltage
6
OnResistance
Resistance vs.
vs. COM_
COM_Voltage
On
Voltage
6
HIGH RON SWITCH
LOW RON SWITCH
5
5
V+=3V
4
V+=3V
4
0
RON()
TA=+85 C
3
0
TA=+25 C
0
TA=-40 C
2
0
TA=+85 C
3
0
TA=+25 C
2
0
0.0
0.5
1.0
1.5
2.0
2.5
0
0.0
3.0
0.5
On Resistance
Resistance vs.
On
vs.COM_Voltage
COM_ Voltage
6
1.5
2.0
2.5
3.0
OnResistance
Resistance vs.
vs. COM_
COM_Voltage
On
Voltage
6
LOW RON SWITCH
5
1.0
VCOM-(V)
VCOM-(V)
HIGH RON SWITCH
5
V+=5V
4
V+=5V
RON()
4
3
0
TA=+85 C
2
3
0
TA=+85 C
2
0
0
TA=+25 C
1
0
0
TA=-40 C
1
1
RON()
V+=4.2V
2
1
RON()
OnResistance
Resistance vs.
vs. COM_
COM_Voltage
On
Voltage
0
1
TA=+25 C
0
TA=-40 C
2
3
VCOM-(V)
4
0
1
5
0
TA=-40 C
0
1
2
3
4
5
VCOM-(V)
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UM4258Q
Typical Operating Characteristics (Continued)
2.0
Logic Threshold vs. Supply Voltage
Logic Threshold vs.Supply Voltage
0.30
Supply Current vs. Temperature
Supply Current vs. Temperature
1.8
0.25
VTH+
1.4
1.2
Supply Current(uA)
Logic Threshold
1.6
VTH-
1.0
0.8
0.6
0.4
0.20
V+=5V
0.15
0.10
0.05
0.2
0.0
1.5
V+=3V
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
0.00
-40
-15
10
Turn on/off Time vs. Supply Voltage
Turn
on/off time vs. Supply Voltage
50
45
45
40
40
tON/tOFF(ns)
tON/tOFF(ns)
Turn
on/off
Time
Supply
Voltage
Turn
on/off
vs.vs.
Supply
Voltage
35
tON
30
25
20
15
tOFF
tON
30
25
20
15
tOFF
10
5
5
0
1.5
85
Temperature( C)
50
10
60
0
Supply Voltage(V)
35
35
2.0
2.5
3.0
3.5
4.0
4.5
Supply Voltage(V)
5.0
5.5
0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Supply Voltage(V)
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UM4258Q
Typical Operating Characteristics (Continued)
Off-Isolation Vs.
Off-Isolation
vs. Frequency
Frequency
Crosstalk vs.
Vs. Frequency
Frequency
Crosstalk
-10
-30
-20
-50
-30
Off-Isolation(dB)
Crosstalk(dB)
VCC=5V
-40
-60
-70
-80
-40
-50
-60
-90
-70
-100
-80
-110
0.1
1
10
100
1000
VCC=5V
-100
0.1
1
10
100
1000
Frequency(MHz)
Frequency(MHz)
On-Loss vs.
Vs. Frequency
Frequency
On-Loss
10
5
VCC=5V
On-Loss(dB)
0
-5
-10
-15
-20
-25
-30
0.1
1
10
100
1000
Frequency(MHz)
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UM4258Q
Detailed Description
The UM4258Q high-speed, low-voltage, low on-resistance (RON), dual SPDT analog switch
operates from a single +1.8V to +5.5V supply. The switch features break-before-make switching
operation and fast switching speeds (tON=80ns (max), tOFF=40ns (max)).
The switch has low 15pF on-channel capacitance, which allows for 12Mbps switching of the data
signals for USB 1.0/1.1 applications. The UM4258Q is designed to switch D+ and D- USB signals
with a guaranteed skew of less than 2ns (see Figure 4) as measured from 50% of the input signal
to 50% of the output signal.
Applications Information
Digital Control Inputs
The UM4258Q 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).
Analog Signal Levels
The on-resistance of the UM4258Q 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.
Power-Supply Sequencing and Over-Voltage Protection
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.
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UM4258Q
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UM4258Q
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UM4258Q
Package Information
UM4258Q: QFN10 1.80×1.40
Outline Drawing
DIMENSIONS
D
b
L1
Symbol
A
Typ
0.55
Max
0.60
Min
0.020
Typ
0.022
Max
0.024
A1
0.00
-
0.05
0.000
-
0.002
A3
Bottom View
A
Top View
0.15REF
A3
A1
0.006REF
b
0.15
0.20
0.25
0.006
0.008
0.010
D
1.35
1.40
1.45
0.053
0.055
0.057
E
1.75
1.80
1.85
0.069
0.071
0.073
e
Side View
INCHES
Min
0.50
L
e
E
Pin #1 ID
MILLIMETERS
0.40BSC
0.016BSC
L
0.30
0.40
0.50
0.012
0.016
0.020
L1
0.40
0.50
0.60
0.016
0.020
0.024
Land Pattern
1.80
0.80
0.20
2.20
0.60
0.40
1.80
1
0.20
0.20
1.40
NOTES:
1. Compound dimension: 1.80×1.40;
2. Unit: mm
3. General tolerance ±0.05mm unless otherwise
specified;
4. The layout is just for reference.
Tape and Reel Orientation
AN
M
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UM4258Q
GREEN COMPLIANCE
Union Semiconductor is committed to environmental excellence in all aspects of its
operations including meeting or exceeding regulatory requirements with respect to the use
of hazardous substances. Numerous successful programs have been implemented to
reduce the use of hazardous substances and/or emissions.
All Union components are compliant with the RoHS directive, which helps to support
customers in their compliance with environmental directives. For more green compliance
information, please visit:
http://www.union-ic.com/index.aspx?cat_code=RoHSDeclaration
IMPORTANT NOTICE
The information in this document has been carefully reviewed and is believed to be
accurate. Nonetheless, this document is subject to change without notice. Union assumes
no responsibility for any inaccuracies that may be contained in this document, and makes
no commitment to update or to keep current the contained information, or to notify a
person or organization of any update. Union reserves the right to make changes, at any
time, in order to improve reliability, function or design and to attempt to supply the best
product possible.
Union Semiconductor, Inc
Add: Unit 606, No.570 Shengxia Road, Shanghai 201210
Tel: 021-51093966
Fax: 021-51026018
Website: www.union-ic.com
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