STG3482
Low voltage dual SP4T switch
Features
■
■
■
■
■
■
■
Ultra low power dissipation:
– I
CC
= 0.1
μA (max.) at T
A
= 25 °C
Low “ON” resistance:
– R
– R
ON
ON
= 4.6
Ω (T
A
= 5.8
Ω (T
A
= 25 °C) at V
CC
= 25 °C) at V
CC
= 4.3 V
= 3.0 V
Wide operating voltage range:
– V
CC
(Opr) = 1.65 to 4.3 V single supply
4.3 V tolerant and 1.8 V compatible threshold on digital control input at V
CC
= 2.3 to 3.0 V
Typical bandwidth (-3dB) at 300 MHz on all channels
Latch-up performance exceeds 300 mA per
JESD 78, Class II
ESD performance exceeds JESD22
– 2000-V Human body model (A114-A)
Table 1.
Device summary
Order code
STG3482QTR
QFN16L (2.6 x 1.8 mm)
Description
The STG3482 is a high-speed CMOS low voltage dual analog SP4T (single pole four throw) switch or 4:1 multiplexer/demultiplexer switch fabricated in silicon gate C
2
MOS technology. It is designed to operate from 1.65 to 4.3 V, making this device ideal for portable applications.
By controlling the SEL1 and SEL2, one of the independent channels will be connected to the common channel. An /OE pin is also available in this device to disconnect all the switches.
Additional key features are fast switching speed, break-before-make delay time and ultra low power consumption. All inputs and outputs are equipped with protection circuits against static discharge, giving them ESD immunity and transient excess voltage.
Package
QFN16L (2.6 x 1.8 mm)
Packaging
Tape and reel
November 2007 Rev 2 1/14
www.st.com
14
2
3
4
5
6
Contents
Contents
1
STG3482
Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1
Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2/14
STG3482 Pin settings
Figure 1.
Pin connection (top through view)
1S4
V
CC
2
1
16 15 14 13
12
1S1
11
GND
Control
1SEL
2S1
3
4
10
2SEL
9
2S4
5 6 7 8
CS00019
Note:
Table 2.
Pin description
Pin number
1
2
11
12
13
14
15
16
9
10
7
8
5
6
3
4
Symbol
1S4
V
CC
1SEL
2S1
NC
2S2
D2
2S3
2S4
2SEL
GND
1S1
/OE
1S2
D1
1S3
Name and function
Independent channel
Positive supply voltage
Control
Independent channel
No connect
Independent channel
Common channels
Independent channel
Independent channel
Control
Ground (0V)
Independent channel
Output enable (active low)
Independent channel
Common channel
Independent channel
Exposed pad must be soldered to a floating plane. Do NOT connect to power or ground.
3/14
Device summary
Figure 2.
Input equivalent circuit
D
STG3482
1SEL
2SEL
/OE
Table 3.
/OE
L
L
H
L
L
Truth table
1SEL
L
H
X
L
H
2SEL
X
L
H
L
H
S3
S4
S1
S2
Switch connection
High-Z
D1-1S1, D2-2S1
D1-1S2, D2-2S2
D1-1S3, D2-2S3
D1-1S4, D2-2S4
CS003001
4/14
STG3482 Maximum rating
3.1
Stressing the device above the rating listed in the “Absolute maximum ratings” table may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions above those indicated in the Operating sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE
Program and other relevant quality documents.
Table 4.
Symbol
I
IKC
I
IK
I
OK
I
O
V
CC
V
I
V
IC
V
O
I
OP
I
CC
or
I
GND
Absolute maximum ratings
Supply voltage
DC input voltage
Parameter
DC control input voltage
DC output voltage
DC input diode current on control pin (V
SEL
<0V)
DC input diode current (V
SEL
<0V)
DC output diode current
DC output current
DC output current peak (pulse at 1ms, 10% duty cycle)
DC V
CC
or ground current
P
D
Power dissipation at T
A
= 70ºC
(1)
T stg
T
L
Storage temperature
Lead temperature (10 sec)
1.
Derate above 70 ºC by 18.5 mW/C
Value
-0.5 to 5.5
-0.5 to V
CC
+ 0.5
-0.5 to 5.5
-0.5 to V
CC
+ 0.5
-50
±50
±20
±128
±300
±100
1120
-65 to 150
300
Unit
V
V
V
V mA mA mA mA mA mA mW
°C
°C
Recommended operating conditions
Table 5.
Symbol
V
CC
V
I
V
IC
V
O
T op
Recommended operating conditions
Parameter
Supply voltage
Input voltage
Control input voltage
Output voltage
Operating temperature dt/dv
Input rise and fall time control input
V
CC
= 1.65 to 2.7 V
V
CC
= 3.0 to 4.3 V
Value
1.65 to 4.3
0 to V
CC
0 to 4.3
0 to V
CC
-40 to 85
0 to 20
0 to 10
Unit
V
V
V
V
°C ns/V
5/14
Electrical characteristics
Table 6.
DC specifications
Test conditions
Symbol Parameter
Vcc
(V)
V
IH
V
IL
High level input voltage
Low level input voltage
R
PEAK
Switch on peak resistance
1.65
−
1.95
2.3
−
2.5
2.7
−
3.0
3.3
−
3.6
4.3
1.65
−
1.95
2.3
−
2.5
2.7
−
3.0
3.3
−
3.6
4.3
1.8
2.7
3.0
3.7
4.3
V
S
= 0 V to V
CC
I
S
= 8 mA
R
ON
Switch ON resistance
3.0
3.0
I
V
S
S
= 3 V
= 8 mA
V
S
= 0.8 V
I
S
= 8 mA
ΔR
ON
ON resistance match between channels
(1)
R
FLAT
ON resistance flatness
(2)
4.3
1.8
2.7
3.0
1.8
2.7
3.0
3.7
3.7
4.3
V
S
@ R
ON
Max
I
S
= 8mA
V
S
= 0V to V
CC
I
S
= 8mA
6/14
STG3482
5.0
0.3
5.9
1.9
1.6
0.3
0.3
0.3
0.3
1.4
1.6
Value
TA = 25 °C -40 to 85 °C
Unit
Typ Max Min Max
0.65
V
CC
1.2
V
1.3
1.4
1.6
0.25
0.25
0.25
0.25
0.30
0.40
12.0
16.0
6.3
5.8
8.0
7.5
5.0
4.6
6.5
6.0
0.25
0.25
0.30
0.40
V
Ω
4.0
5.2
Ω
6.5
Ω
Ω
STG3482 Electrical characteristics
Table 6.
DC specifications
Test conditions Value
Symbol Parameter
Vcc
(V)
TA = 25 °C -40 to 85 °C
Unit
Typ Max Min Max
I
OFF
I
IN
OFF state leakage current
(SN), (D)
Input leakage current
4.3
0 to 4.3
V
V
S
= 0.3 or 4 V
SEL
= 0 to 4.3 V
±20
±0.1
±100
±1 nA
μA
I
CC
Quiescent supply current
1.65 to 4.3
V
SEL
= V
CC
or GND
±0.1
±1.0
μA
I
CCLV
Quiescent supply current low voltage driving
4.3
V
1SEL,
V
2SEL
= 1.65 V
V
1SEL,
V
2SEL
= 1.80 V
V
1SEL,
V
1SEL,
V
OE
V
2SEL
V
2SEL
= 1.65 V
= 2.60 V
= 0
±37
±33
±50
±40
±12 ±20
±19 ±25
±100
±50
±30
±50
V
1SEL,
V
2SEL
= 0
V
OE
= 1.80 V
V
1SEL,
V
2SEL
= 0
V
OE
= 2.60 V
±17
±6
±20
±10
±25
±15
1.
ΔRon = Ron(max) - Ron(Min)
2.
Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified analog signal ranges.
μA
7/14
Electrical characteristics STG3482
Table 7.
AC electrical characteristics (C
L
= 35 pF, R
L
= 50
Ω, t r
= t f
≤
5 ns)
Test conditions Value
Symbol Parameter
Vcc
(V)
Min
T
A
= 25 °C
Typ Max
t
PLH
, t
PHL
Propagation delay t
ON t
OFF t
D
Q
Turn-ON time
Turn-OFF time
Break before make time delay
Charge injection
1.65
−
1.95
2.3
−
2.7
3.0
−
3.3
3.6
−
4.3
1.65
−
1.95
2.3
−
2.7
3.0
−
3.3
3.6
−
4.3
1.65
−
1.95
2.3
−
2.7
3.0
−
3.3
3.6
−
4.3
1.65
−
1.95
2.3
−
2.7
3.0
−3.3
3.6
−
4.3
1.65
2.3
3.0
4.3
V
S
= 0.8 V
V
S
= 1.5 V
V
S
= 0.8
V
S
= 1.5 V
C
L
= 35 pF
R
L
= 50 Ω
V
S
= 1.5 V
C
L
= 100 pF
V
GEN
R
GEN
= 0 V
= 0 Ω
1
1
1
1
0.30
0.30
0.27
0.28
37
20
15
12
23
17
12
10
24
15
11
9
10
11
11
11
30
25
18
23
18
15
-40 to 85 °C
Min Max
17
12
10
34
26
20
Unit
ns ns ns ns pC
8/14
STG3482 Electrical characteristics
Table 8.
Symbol
Analog switch characteristics (C
L
= 5pF, R
L
= 50
Ω, T
A
= 25°C)
Test conditions Value
Parameter
Vcc
(V)
T
A
= 25 °C
-40 to 85 °C
Min Typ Max Min Max
OIRR
OFF Isolation
(1)
Xtalk Crosstalk
1.65
−−
4.3
V
S
= 1V
RMS, f = 1 MHz
Signal = 0 dBm
V
S
= 1V
RMS, f = 10 MHz
Signal = 0 dBm
1.65
−−
4.3
V
S
= 1V
RMS, f = 1 MHz
Signal = 0 dBm
V
S
= 1V
RMS, f = 10 MHz
Signal = 0 dBm
-75
-58
-77
-60
THD
Total harmonic distortion
3.7
f = 20 Hz to 20 kHz
R
L
= 32
Ω, C
L
= 50
Ω
V
IN
= 2.8 V
P-P
V
DC
= V
CC
/2
PSRR
Power supply rejection ratio
3.7
f = 217 Hz,
R
L
= 32
Ω, C
L
= 50
Ω
V ripple
= 150 mV
V
DC
= V
CC
/2
BW -3dB bandwidth
D
G
D
P
3.0
−−
4.3
R
L
= 50 Ω
Bias = 1 V
Differential gain 3.0
−−
4.3 RL = 150
Ω
Differential phase
3.0
−−
4.3 RL = 150
Ω
C
IN
Control pin input capacitance
V
CC
= 0 V
C
ON
Sn port capacitance when switch is enabled
3.3
f = 1 MHz
C
OFF
Sn port capacitance when switch is disabled
3.3
f = 1 MHz
1.
Off Isolation = 20Log10 (V
D
/V
S
), V
D
= output. V
S
= input to off switch.
0.01
0.02
-60
300
0.64
0.1
1.5
6.7
2.8
Unit
dB dB
% dB
MHz
% deg pF
9/14
Package mechanical data
5 Package mechanical data
STG3482
In order to meet environmental requirements, ST offers these devices in ECOPACK
® packages. These packages have a Lead-free second level interconnect . The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark.
ECOPACK specifications are available at: www.st.com
.
Figure 3.
QFN16L (2.6 x 1.8 mm) package outline
10/14
STG3482 Package mechanical data
1.
Table 9.
QFN16L (2.6 x 1.8 mm) mechanical data
Millimeters
Symbol
Typ Min Max
A1 0.02 0 0.05
A3 0.127 e 0.40
1. VFQFPN - standard for thermally enhanced vey fine pitch quad flat package no leads.
2. The leads size is comprehensive of the thickness of the leads finishing material.
3. Dimensions do not include mold protusion.
4. Package outline exclusive of metal burrs dimensions.
5. Shipping media tape and reel units: 3000
11/14
Package mechanical data
Figure 4.
QFN16L (2.6 x 1.8 mm) tape and reel
STG3482
12/14
STG3482 Revision history
Table 10.
Document revision history
Date Revision
21-Nov-2006
20-Nov-2007
1
2
Changes
Initial release.
Updated latch-up performance value in
Features section n on page
1
, minor text changes, updated
Figure 1 on page 3
,
Table 2 on page 3
,
Table 5 on page 5
,
Table 6 on page 6
,
Table 7 on page 8
13/14
STG3482
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