Vishay DG2728 0.65-ohm, low voltage, negative swing capable, dual spst analog switch Datasheet

DG2727, DG2728, DG2729
Vishay Siliconix
0.65-Ω, Low Voltage, Negative Swing Capable,
Dual SPST Analog Switch
DESCRIPTION
FEATURES
The DG2727, DG2728, and DG2729 are 0.6 Ω dual SPST
analog switches. When Sx are used as signal input, these
devices support AC-coupled audio signals with single rail
power supply. Audio signals can swing below ground down
to V+ - 4.3 V.
Built on Vishay Siliconix’s sub-micro CMOS technology, the
DG2747/2748/2749 achieve 0.6 Ω on-resistance and 0.2 Ω
flatness at 2.7 V power supply. Its total harmonic distortion is
0.006 % (frequency ranges 20 Hz to 20 kHz).
It achieves - 72 dB off-isolation and - 100 dB crosstalk at
100 kHz. Its - 3 dB bandwidth is up to 78 MHz.
Select pin of control logic can tolerate voltage above power
supply up to 4.3 V. It has guaranteed 1.2 V logic high for the
power supply 2.7 V to 4.3 V range. This makes it compatible
with many low voltage digital control circuits.
Combining wide operation voltage, low power, high speed,
low on-resistance and small physical size, the DG2747,
DG2748, DG2749 are ideal for portable and battery powered
applications requiring high performance and efficient use of
board space.
The DG2747, DG2748, DG2749 come in a small
miniQFN-8L package (1.4 mm x 1.4 mm x 0.55 mm) and
operate over - 40 °C to + 85 °C extended temperature range.
• Halogen-free according to IEC 61249-2-21
definition
• Wide operation voltage range: 1.6 V to 4.3 V
• Low 0.6 Ω (typical at 2.7 V) on-resistance
• Guaranteed logic high threshold:
Vth(high) = 1.2 V at V+ = 4.3 V
• - 82 dB crosstalk and - 76 dB off-isolation at 100 kHz
• 250 MHz, - 3 dB bandwidth
• 0.006 % total harmonic distortion
• > 250 mA latch up current per JESD78
• > 8 kV ESD/HBM per MIL-STD 883 (method 3015)
• Compliant to RoHS directive 2002/95/EC
BENEFITS
• Ultra small miniQFN-8L package of 1.4 mm x 1.4 mm
x 0.55 mm
• High fidelity audio switch
• Reed relay replacement
• Low power consumption
APPLICATIONS
•
•
•
•
•
•
•
Cellular phones
GPS and portable media player
Audio and video signal routing
Modems
Hard drives and computer peripherals
Low voltage data-acquisition circuits
Medical and test equipment
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
DG2727
miniQFN-8L
DG2728
miniQFN-8L
V+
V+
(Top View)
8
IN1
1
7
(Top View)
8
IN2
IN1
1
7
IN2
S1
2
6
S2
5
D2
Gx
S1
D1
2
6
S2
3
5
D2
Kx
Pin 1
Pin 1
D1
Device Marking: Gx for DG2727
x = Date/Lot Traceability Code
3
4
4
GND
GND
DG2729
miniQFN-8L
Top View
Device Marking: Kx for DG2728
x = Date/Lot Traceability Code
Top View
V+
8
(Top View)
IN1
1
7
IN2
S1
2
6
S2
D1
3
5
D2
Lx
Pin 1
4
Device Marking: Lx for DG2729
x = Date/Lot Traceability Code
GND
Top View
Document Number: 69049
S09-0557-Rev. A, 13-Apr-09
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1
DG2727, DG2728, DG2729
Vishay Siliconix
TRUTH TABLE
DG2727
Logic
DG2728
DG2729
S1 and D1
S2 and D2
S1 and D1
D2 and D2
S1 and D1
S2 and D2
Low
OFF
OFF
ON
ON
ON
OFF
High
ON
ON
OFF
OFF
OFF
ON
ORDERING INFORMATION
Temp. Range
Package
Part Number
- 40 °C to 85°C
miniQFN-8L
DG2727DN-T1-E4
DG2728DN-T1-E4
DG2729DN-T1-E4
ABSOLUTE MAXIMUM RATINGS TA = 25 °C, unless otherwise noted
Parameter
Reference to GND
V+
IN, D, Sa
Limit
- 0.3 to 5.0
- 0.3 to (V+ + 0.3)
30
± 300
± 500
- 65 to 150
190
Unit
V
Current (Any terminal except S or D)
Continuous Current (S or D)
mA
Peak Current (Pulsed at 1 ms, 10 % duty cycle)
Storage Temperature (D Suffix)
°C
Power Dissipation (Packages)b
miniQFN-8Lc
mW
Notes:
a. Signals on S or D or IN exceeding V+ will be clamped by internal diodes. Limit forward diode current to maximum current ratings.
b. All leads welded or soldered to PC board.
c. Derate 2.4 mW/°C above 70 °C.
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Document Number: 69049
S09-0557-Rev. A, 13-Apr-09
DG2727, DG2728, DG2729
Vishay Siliconix
SPECIFICATIONS V+ = 3 V
Parameter
Symbol
Test Conditions
Unless Otherwise Specified
V+ = 3 V, ± 10 %,VIN = 0.4 V or 1.2 Ve
Limits
- 40 °C to 85 °C
Temp.a
Min.b
Full
V+ - 4.3 V
Typ.c
Max.b
Unit
V+
V
0.65
1.0
Analog Switch
Analog Signal Ranged
On-Resistance
RON Match
RON Resistance Flatness
Vanalog
RON
Full
1.15
ΔRON
V+ = 2.7 V, ID = 100 mA,
VS = - 1.6 V, - 1 V, 0 V, 2 V, 2.7 V
Room
0.1
RON
flatness
V+ = 2.7 V, ID = 100 mA,
VS = - 1.6 V, - 1 V, 0 V, 2 V, 2.7 V
Room
IS(off)
Switch Off Leakage
Current
ID(off)
Channel-On Leakage
Current
Room
V+ = 2.7 V, ID = 100 mA,
VS = - 1.6 V, - 1 V, 0 V, 2 V, 2.7 V
ID(on)
V+ = 2.7 V, VS = - 1.8 V, 2.4 V
VD = 0 V
V+ = 2.7 V, VS = VD = - 1.8 V, 2.4 V
0.2
Ω
0.3
Room
- 100
Full
- 500
100
500
Room
- 100
100
Full
- 500
500
Room
Full
- 100
100
- 500
500
nA
Digital Control
High Level Input Voltage
VINH
Low Level Input Voltage
VINL
IINL or IINH
Input Current
V+ = 1.6 V to 2.6 V
1.0
V+ = 2.7 V to 4.3 V
1.2
V+ = 1.6 V to 2.6 V
Full
V
0.3
V+ = 2.7 V to 4.3 V
0.4
VIN = 0 or V+
-1
1
µA
Dynamic Characteristics
Turn-On Time
tON
Turn-Off Time
tOFF
Break-Before-Make Time
(DG2729 only)
tBBM
Charge Injectiond
Q
Off-Isolationd
OIRR
Crosstalkd
XTALK
Room
V+ = 1.6 V to 4.3 V, VS = 1.5 V,
RL = 50 Ω, CL = 35 pF
38
Full
Room
14
Full
Full
CL = 1 nF, RGEN = 0 Ω, VGEN = 0 V
RL = 50 Ω, CL = 5 pF, f = 1 MHz
ns
40
42
2
Room
RL = 50 Ω, CL = 5 pF, f = 1 MHz
RL = 50 Ω, CL = 5 pF, f = 100 kHz
67
72
14
ns
1.2
pC
- 58
- 76
Room
dB
- 64
RL = 50 Ω, CL = 5 pF, f = 100 kHz
- 82
RL = 50 Ω, CL = 5 pF
Room
252
MHz
THD
RL = 600 Ω, 0.5 Vp-p, f = 20 Hz to 20 kHz
Room
0.006
%
Source Off Capacitanced
CS(off)
f = 1 MHz, VS = 0 V
Room
31
Drain Off Capacitanced
CD(off)
f = 1 MHz, VD = 0 V
Room
31
d
CD(on)
f = 1 MHz, VD = VS = 0 V
Room
46
VIN = 0 or V+
Full
3 dB Bandwidthd
Total Harmonic Distortiond
Drain On Capacitance
pF
Power Supply
Power Supply Range
V+
Power Supply Current
I+
1.6
4.3
V
1.0
µA
Notes:
a. Room = 25 °C, Full = as determined by the operating suffix.
b. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet.
c. Typical values are for design aid only, not guaranteed nor subject to production testing.
d. Guarantee by design, not subjected to production test.
e. VIN = input voltage to perform proper function.
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.
Document Number: 69049
S09-0557-Rev. A, 13-Apr-09
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DG2727, DG2728, DG2729
Vishay Siliconix
TYPICAL CHARACTERISTICS TA = 25 °C, unless otherwise noted
1.50
2.50
V+ = 2.7 V, I D = 100 mA
T = 25 °C
ID = 100 mA
2.25
1.25
R ON - On-Resistance (Ω)
R ON - On-Resistance (Ω)
2.00
1.75
V+ = 1.6 V
1.50
V+ = 2.7 V
V+ = 1.8 V
1.25
1.00
V+ = 3.0 V
V+ = 2.0 V
0.75
V+ = 3.6 V
V+ = 4.3 V
0.50
+ 25 °C
1.00
+ 85 °C
0.75
0.50
- 40 °C
0.25
0.25
0.00
-3
-2
-1
0
1
2
3
4
0.00
-2
5
-1
0
1
2
3
VS - Analog Voltage (V)
VS - Analog Voltage (V)
RDS(ON) vs. Analog Voltage and Supply Voltage
RDS(ON) vs. Analog Voltage and Temperature
20
100
10
V+ = 2.7 V
10
Q - Charge Injection (pC)
I+ - Supply Current (nA)
0
VIN = 0V
VIN = V +
1
V+ = 2.0 V
- 10
- 20
V+ = 3.0 V
V+ = 4.3 V
- 30
- 40
- 50
- 60
- 70
- 80
0
- 60
- 40
- 20
0
20
40
60
80
- 90
-3
100
-2
-1
0
1
2
3
4
Temperature (°C)
VS - Analog Voltage (V)
Supply Current vs. Temperature
Charge Injection vs. Analog Voltage
5
10
45
Loss
0
tON V+ = 1.6 V
40
- 10
30
Loss, OIRR, X TALK (dB)
Switching time (ns)
35
tON V+ = 2.7 V
25
tON V+ = 4.3 V
20
15
tOFF V+ = 1.6 V
10
0
- 60
tOFF V+ = 2.7 V
- 40
- 20
0
- 40
OIRR
- 50
XTALK
- 60
- 70
V+ = 3.0 V
R L = 50 Ω
- 90
20
40
60
Temperature (°C)
Switching Time vs. Temperature
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4
- 30
- 80
tOFF V+ = 4.3 V
5
- 20
80
100
- 100
100k
1M
10M
100M
1G
Frequency (Hz)
Insertion Loss, Off-Isolation and Crosstalk
vs. Frequency
Document Number: 69049
S09-0557-Rev. A, 13-Apr-09
DG2727, DG2728, DG2729
Vishay Siliconix
TYPICAL CHARACTERISTICS TA = 25 °C, unless otherwise noted
0.1
2.00
Total Harmonic Distortion (%)
V T - Switching Threshold (V)
1.75
1.50
1.25
1.00
0.75
0.50
R L = 600 Ω
V Signal = 0.5 Vp-p
0.01
V+ = 2.7 V
V+ = 3.6 V
0.25
0.001
10
0.00
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
100
1000
10 000
100 000
V+ - Supply Voltage (V)
Frequency (Hz)
Switching Threshold vs. Supply Voltage
Total Harmonic Distortion vs. Frequency
TEST CIRCUITS
V+
Logic
Input
V+
tr < 5 ns
tf < 5 ns
50 %
VINL
Switch Output
D
S
Switch
Input
VINH
VOUT
0.9 x V OUT
Logic
Input
Switch
Output
IN
RL
50 Ω
GND
CL
35 pF
0V
tON
tOFF
0V
Logic "1" = Switch On
Logic input waveforms inverted for switches that have
the opposite logic sense.
CL (includes fixture and stray capacitance)
VOUT = VD
(R L
RL
+ R
ON
)
Figure 1. Switching Time
V+
Logic
Input
VS2
V+
D2
S2
VS1
Switch
Output
IN1
RL2
50 Ω
GND
90 %
VO1
D1
S1
50 %
VINL
VS2
VO2
VO2
IN2
VINH
RL1
50 Ω
CL1
35 pF
CL2
35 pF
Switch
Output
0V
VS1
VO1
0V
90 %
tD
tD
CL (includes fixture and stray capacitance)
Figure 2. Break-Before-Make (DG2729)
Document Number: 69049
S09-0557-Rev. A, 13-Apr-09
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5
DG2727, DG2728, DG2729
Vishay Siliconix
TEST CIRCUITS
ΔVO
V+
INX
V+
Rg
Vg
VO
S
VIN = 0 - V+
OFF
D
ON
OFF
VO
IN
CL
1 nF
GND
INX
OFF
ON
Q = ΔVO x CL
OFF
Figure 3. Charge Injection
V+
C
V+
V+
Rg = 50 Ω
50 Ω
IN1
S1 or S2
0 V, V+
0 V, V+
IN1 or IN2
V+
D1
S1 or S1
VS
S2 or S2
D2
VO
D1 or D2
Analyzer
IN2
0 V, V+
RL
RL
GND
GND
VD
XTALK Isolation = 20 log
Off Isolation = 20 log V
S
C = RF bypass
VO
VS
Figure 5. Crosstalk
Figure 4. Off-Isolation
V+
V+
D1 or D2
Meter
IN1 or IN2
0 V, V+
S1 or S2
HP4192A
Impedance
Analyzer
or Equivalent
GND
f = 1 MHz
Figure 6. Channel Off/On Capacitance
Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon
Technology and Package Reliability represent a composite of all qualified locations. For related documents such as package/tape drawings, part marking, and
reliability data, see www.vishay.com/ppg?69049.
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6
Document Number: 69049
S09-0557-Rev. A, 13-Apr-09
Package Information
Vishay Siliconix
MINIQFN-8L CASE OUTLINE
A
D
6
5
5
6
7
L
7
b
4
8
4
E
8
L
L
L
1
2
3
3
2
1
A
A1
c
e
MILLIMETERS
INCHES
DIM
MIN.
NOM.
MAX.
MIN.
NOM.
MAX.
A
0.50
0.55
0.60
0.0197
0.0217
0.0236
A1
0.00
-
0.05
0.000
-
0.002
b
0.15
0.20
0.25
0.006
0.008
0.010
c
0.15 REF
0.006 REF
D
1.35
1.40
1.45
0.053
0.055
0.057
E
1.35
1.40
1.45
0.053
0.055
0.057
e
L
0.40 BSC
0.35
0.40
0.016 BSC
0.45
0.014
0.016
0.018
ECN: C-08336-Rev. A, 05-May-08
DWG: 5964
Document Number: 68674
Revision: 05-May-08
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Disclaimer
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RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
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“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
disclosure relating to any product.
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including but not limited to the warranty expressed therein.
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Document Number: 91000
Revision: 11-Mar-11
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