UM4684
0.5Ω Low-Voltage Dual SPDT Analog Switch
UM4684H CSP10 2.0
×
1.5
UM4684EEUE MSOP10
General Description
The UM4684 is a sub 1Ω (0.5Ω at 2.7V) dual SPDT analog switch designed for low voltage
applications.
The UM4684 has on-resistance matching(less than 0.05Ω at 2.7V) and flatness (less than 0.2Ω at
2.7V) that are guaranteed over the entire voltage range. Additionally, low logic thresholds make
the UM4684 an ideal interface to low voltage DSP control signals.
The UM4684 has fast switching speed with break-before-make guaranteed. In the ON condition,
all switching elements conduct equally in both directions. OFF-isolation and crosstalk is -69dB at
100kHz.
The UM4684 is built on high-density low voltage CMOS process, and contains the additional
benefit of 2000V ESD protection.
As a committed partner to the community and the environment, Union manufactures this product
with lead (Pb)-free device terminations.
Applications
Cellular Phones
Speaker Headset Switching
Audio And Video Signal Routing
PCMCIA Cards
Battery Operated Systems
Relay Replacement
Power Routing
Communication Circuits
Features
CSP10 & MSOP10 Packages
ESD Protection>2000V
+1.8V to +5.5V Single Supply Operation
NC Switch R
ON:
0.5Ω (+2.7V Supply)
NO Switch R
ON:
0.6Ω (+2.7V Supply)
R
ON
Match Between Channels: 0.05Ω max
(+2.7V Supply)
R
ON
Flatness Over Signal Range: 0.2Ω max
(+2.7V Supply)
1.8V logic Compatibility
Low Crosstalk:-69dB (100KHZ)
High Off-Isolation:-69dB (100KHZ)
Ordering Information
Part Number
UM4684H
UM4684EEUE
TEMP. RANGE
-40 to 85 °C
-40 to 85 °C
Packaging Type
CSP10 2.0×1.5
MSOP10
Marking Code
A
UM4684EEUE
Shipping Qty
3000pcs/7 Inch
Tape & Reel
3000pcs/13 Inch
Tape & Reel
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UM4684
Pin Configurations
UM4684H
CSP10
Top View
UM4684EEUE
MSOP10
Pin Description
NAME
NC_
IN_
COM_
NO_
V+
GND
PIN
CSP10
A1, C1
A2, C2
A3, C3
A4, C4
B4
B1
MSOP-10
5, 7
4, 8
3, 9
2, 10
1
6
FUNCTION
Analog Switch—Normally Closed Terminal
Digital Control Input
Analog Switch—Common Terminal
Analog Switch—Normally Open Terminal
Positive Supply Voltage Input
Ground
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UM4684
Function Table
IN_
0
1
NO_
OFF
ON
NC_
ON
OFF
Absolute Maximum Ratings
Reference to GND
V+ . . . . . . . . . . . . . . . . .. . . . . . . . -0.3 to +6 V
IN, COM, NC, NO . . . . . . . .-0.3to (V
+
+ 0.3 V)
Continuous Current (NO, NC, COM) .±300 mA
Peak Current . . . . . . . . . . . .. . . .. . . . . ±500 mA
(Pulsed at 1 ms, 10% duty cycle)
Storage Temperature (D Suffix) . . -65 to 150°C
b
Package Solder Reflow Conditions
IR/Convection. . . . . . . . . . . . . . . . . .. 250°C
ESD per Method 3015.7 . . . . . . . . . . . . . .> 2 kV
Power Dissipation (Packages)
CSP10 . . . . . . . . . .. . . . . . . . . . . . . . . .457 mW
Notes:
a. Signals on NC, NO, or COM or IN
exceeding V+ will be clamped by internal
diodes. Limit forward diode current to
maximum current ratings.
b. Refer to IPC/JEDEC (J-STD-020B).
c. All bumps welded or soldered to PC Board.
d. Derate 5.7 mW/°C above 70°C.
c
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 are not
implied. Exposure to absolute maximum rating conditions for extended periods may affect device
reliability.
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UM4684
Electrical Characteristics (V+ =3V, ±10% deviation, VIN= 0.5 or 1.4V
e
)
Parameter
Analog Switch
Analog Signal
Range
d
On-Resistance
d
R
ON
Flatness
d
On-Resistance
Match Between
Channels
d
Switch Off Leakage
Current
V
NO
V
NC
V
COM
R
on
R
on
Flatness
Δr
DS(on)
I
NO(off)
,
I
NC(off)
I
COM(of
f)
Symbol
Test Conditions
Otherwise Unless
Specified
Temp
a
Limits (–40 to 85 °C)
Min
b
Typ
c
Max
b
Uni
t
Full
Room
Full
V
+
= 2.7V,
V
com
= 0.6/1.5V,
I
NO
, I
NC
= 100mA
Room
Room
Room
Full
Room
Full
Room
Full
0
V
+
0.5
0.8
1.0
0.15
0.05
V
Ω
V
+
= 3.3V,
V
NO
, V
NC
= 0.3V / 3V,
V
COM
= 3V / 0.3V
V
+
= 3.3V,
V
NO
, V
NC
= V
COM
=
0.3V / 3V
-2
-20
-2
-20
-2
-20
2
20
2
20
2
20
nA
Channel-On Leakage
Current
Digital Control
Input High Voltage
d
Input Low Voltage
Input Capacitance
Input Current
I
COM(on)
V
INH
V
INL
C
in
I
INL
or I
INH
V
IN
= 0 or V
+
Full
Full
Full
Full
1.4
0.5
10
-1
1
V
pF
μA
Dynamic Characteristics
Turn-On Time
t
ON
V
NO
or V
NC
= 2.0V,
R
L
= 50Ω, C
L
= 35pF
Room
Full
Room
Full
Full
1
52
82
90
73
78
ns
Turn-Off Time
Break-Before-Make
Time
Charge Injection
Off-Isolation
d
d
t
OFF
t
d
Q
INJ
O
IRR
43
6
V
NO
or V
NC
= 2.0V,
R
L
= 50Ω, C
L
= 35pF
C
L
= 1nF,
V
GEN
= 1.5V
R
GEN
= 0Ω
R
L
= 50Ω, C
L
= 5Pf,
ns
Room
Room
21
-69
pC
dB
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UM4684
Crosstalk
d
-3dB Bandwidth
NO NC Off
Capacitance
d
X
TALK
BW
C
NO(off)
C
NC(off)
f = 100KHz
R
L
= 50Ω, C
L
= 5pF
Room
Room
Room
Room
-69
20
145
145
pF
Room
Room
406
406
1.8
0.00
1
5.5
1.0
1.0
V
μA
MH
z
V
IN
= 0 or V
+
,
f = 1MHz
Channel On
Capacitance
d
Power Supply
Power Supply Range
Power Supply
Current
C
NO(on)
C
NC(on)
V
+
I
+
V
IN
= 0 or V
+
Full
Room
Full
Notes:
a. Room = 25°C, Full = as determined by the operating suffix.
b. Typical values are for design aid only, not guaranteed nor subject to production testing.
c. The algebraic convention whereby the most negative value is a minimum and the most positive
a maximum，is used in this data sheet.
d. Guarantee by design, nor subjected to production test.
e. VIN = input voltage to perform proper function.
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