The DG2741, DG2742, DG2743 are low voltage, single
supply, dual SPST analog switches. Designed for high
performance switching of analog signals, the DG2741,
DG2742, DG2743 provide low on-resistance (0.8
at
+ 2.7 V), fast speed (t
ON
, t
OFF
at 35 ns and 33 ns) and the
ability to handle signals over the entire analog voltage range.
When operated on a + 3 V supply, control pins are
compatible with 1.8 V digital logic. Additionally, on-
resistance flatness and matching (0.18
and 0.08
,
respectively) offer high accuracy between channels.
The DG2741 contains two normally open (NO) switches, the
DG2742 contains two normally closed (NC) switches, and
the DG2743 contains one normally open and one normally
closed switch. Break-before-make is guaranteed.
Built on Vishay Siliconix’s low voltage submicron CMOS
process, the DG2741, DG2742, DG2743 were designed to
offer solutions that extend beyond audio/video functions, to
providing the performance required for today’s demanding
mixed-signal switching in portable applications.
FEATURES
•
•
•
•
•
•
•
•
Low voltage operation (1.6 V to 3.6 V)
Low on-resistance - R
DS(on)
: 0.8
at
2.7 V
High current handling capacity: 150 mA continuous
Off-isolation: - 56 dB at 1 MHz
Fast switching: 25 ns t
ON
Low charge injection - Q
INJ
: 5.8 pC
Low power consumption: < 1 µW
ESD protection > 2 000 V
BENEFITS
•
•
•
•
•
High accuracy
High bandwidth
TTL and low voltage logic compatibility
Low power consumption
Reduced PCB space (SOT23-8 and MSOP-8)
APPLICATIONS
•
•
•
•
•
Mixed signal routing
Portable and battery operated systems
Low voltage data acquisition
Modems
PCMCIA cards
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
(DG2741)
DG2741, MSOP-8
NO
1
COM
1
IN
2
GND
1
2
3
4
Top View
Device Marking:
2741
8
7
6
5
V+
IN
1
COM
2
NO
2
IN
1
V+
NO
2
COM
2
1
2
3
4
Top View
Device Marking:
F3
DG2741, SOT23-8
8
7
6
5
NO
1
COM
1
IN
2
GND
TRUTH TABLE
(DG2741)
Logic
0
1
Switch
Off
On
Document Number: 72708
S11-0303-Rev. B, 28-Feb-11
www.vishay.com
1
DG2741, DG2742, DG2743
Vishay Siliconix
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
(DG2742, DG2743)
DG2742, MSOP-8
NC
1
COM
1
IN
2
GND
1
2
3
4
8
7
6
5
V+
IN
1
COM
2
NC
2
IN
1
V+
NC
2
COM
2
1
2
3
4
DG2742, SOT23-8
8
7
6
5
NC
1
COM
1
IN
2
GND
Top View
Device Marking:
2742
Top View
Device Marking:
F4
TRUTH TABLE
(DG2742)
Logic
0
1
Switch
On
Off
DG2743, MSOP-8
NO
1
COM
1
IN
2
GND
1
2
3
4
Top View
Device Marking:
2743
8
7
6
5
V+
IN
1
COM
2
NC
2
IN
1
V+
NC
2
COM
2
1
2
3
4
DG2743, SOT23-8
8
7
6
5
Top View
Device Marking:
F5
NO
1
COM
1
IN
2
GND
TRUTH TABLE
(DG2743)
Logic
0
1
Switch-1
Off
On
Switch-2
On
Off
ORDERING INFORMATION
Temp. Range
Package
MSOP-8
- 40 °C to 85 °C
SOT23-8
Part Number
DG2741DQ-T1
DG2742DQ-T1
DG2743DQ-T1
DG2741DS-T1
DG2742DS-T1
DG2743DS-T1
www.vishay.com
2
Document Number: 72708
S11-0303-Rev. B, 28-Feb-11
DG2741, DG2742, DG2743
Vishay Siliconix
ABSOLUTE MAXIMUM RATINGS
(T
A
= 25 °C, unless otherwise noted)
Parameter
Referenced V+ to GND
IN, COM, NC, NO
a
Continuous Current (NO, NC and COM Pins)
Peak Current (Pulsed at 1 ms, 10 % duty cycle)
ESD per Method 3015.7
Storage Temperature (D Suffix)
Power Dissipation (Packages)
c
Limit
- 0.3 to + 4 V
- 0.3 V to (V+ + 0.3 V)
± 200
± 300
>2
- 65 to 150
6-Pin SC-70
c
Unit
V
mA
kV
°C
mW
250
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. All leads welded or soldered to PC board.
c. Derate 3.1 mW/°C above 70 °C.
SPECIFICATIONS
(V+ = 1.8 V)
Test Conditions
Otherwise Unless Specified
V+ = 1.8 V, ± 10 %, V
IN
= 0.4 or 1.0 V
e
Limits
- 40 °C to 85 °C
Temp.
a
Min.
b
Typ.
c
Max.
b
Unit
Parameter
Analog Switch
Analog Signal Range
d
On-Resistance
R
ON
Flatness
d
R
ON
Match
d
Symbol
V
NO
, V
NC
V
COM
R
ON
R
ON
Flatness
R
ON
I
NO(off)
I
NC(off)
I
COM(off)
Full
V+ = 1.8 V, V
COM
= 0.9 V
I
NO
, I
NC
= 10 mA
V+ = 1.8 V, V
COM
= 0 to V+, I
NO
, I
NC
= 10 mA
Room
Full
d
Room
Room
V+ = 1.8 V
V
NO
, V
NC
= 0.2 V/2.0 V, V
COM
= 1.5 V/0.3 V
Room
Full
d
Room
Full
d
Room
Full
d
Full
Full
Full
V
IN
= 0 or V+
Full
Room
Full
d
Room
Full
d
Room
C
L
= 1 nF, V
GEN
= 0 V, R
GEN
= 0
,
figure 3
R
L
= 1 k, C
L
= 5 pF, f = 1 MHz
Room
Room
Room
Room
Room
0
0.9
0.25
0.05
-1
- 10
-1
- 10
-1
- 10
1.0
V+
2.5
4.0
V
Switch Off Leakage Current
f
1
10
1
10
1
10
nA
Channel-On Leakage Current
f
Digital Control
Input High Voltage
Input Low Voltage
Input Capacitance
d
Input Current
f
Dynamic Characteristics
Turn-On Time
d
Turn-Off Time
d
I
COM(on)
V+ = 1.8 V, V
NO
, V
NC
= V
COM
= 0.3 V/1.5 V
V
INH
V
INL
C
in
I
INL
or I
INH
0.4
5.5
-1
33
27
3
20
55
91
88
105
1
45
50
40
45
V
pF
µA
t
ON
t
OFF
t
d
Q
INJ
OIRR
X
TALK
C
NO(off)
C
NC(off)
C
ON
V
NO
or V
NC
= 1.5 V, R
L
= 50
,
C
L
= 35 pF
figures 1 and 2
ns
Break-Before-Make Time
d
Charge Injection
d
Off-Isolation
d
Crosstalk
d
NO, NC Off Capacitance
d
Channel-On Capacitance
d
pC
dB
V
IN
= 0 or V+, f = 1 MHz
pF
Document Number: 72708
S11-0303-Rev. B, 28-Feb-11
www.vishay.com
3
DG2741, DG2742, DG2743
Vishay Siliconix
SPECIFICATIONS
(V+ = 3.0 V)
Test Conditions
Otherwise Unless Specified
V+ = 3 V, ± 10 %, V
IN
= 0.5 or 1.4 V
e
Limits
- 40 °C to 85 °C
Temp.
a
Min.
b
Typ.
c
Max.
b
Unit
Parameter
Analog Switch
Analog Signal Range
d
On-Resistance
R
ON
Flatness
R
ON
MatchFlat
Symbol
V
NO
, V
NC
V
COM
R
ON
R
ON
Flatness
R
ON
I
NO(off)
I
NC(off)
I
COM(off)
Full
V+ = 2.7 V, V
COM
= 0.2 V/1.5 V, I
NO
I
NC
= 100 mA
V+ = 2.7 V, V
COM
= 1.5, 2 V, I
NO
, I
NC
= 100 mA
Room
Full
Room
Room
V+ = 3.3 V
V
NO
, V
NC
= 0.3 V/3 V, V
COM
= 3 V/0.3 V
V+ = 3.3 V, V
NO
, V
NC
= V
COM
= 0.3 V/3 V
Room
Full
Room
Full
Room
Full
Full
Full
Full
V
IN
= 0 or V+
Full
Room
Full
Room
Full
Room
C
L
= 1 nF, V
GEN
= 0 V, R
GEN
= 0
,
figure 3
R
L
= 1 k, C
L
= 5 pF, f = 1 MHz
Room
Room
Room
Room
Room
0
0.4
V+
0.8
0.9
0.18
0.08
1
10
1
10
1
10
V
0.8
0.05
-1
- 10
-1
- 10
-1
- 10
1.4
Switch Off Leakage Current
nA
Channel-On Leakage Current
Digital Control
Input High Voltage
Input Low Voltage
Input Capacitance
d
Input Current
f
Dynamic Characteristics
Turn-On Time
Turn-Off Time
Break-Before-Make Time
Charge Injection
d
Off-Isolation
d
Crosstalk
d
NO, NC Off Capacitance
d
Channel-On Capacitance
d
Power Supply
Power Supply Range
Power Supply Current
I
COM(on)
V
INH
V
INL
C
in
I
INL
or I
INH
0.5
5.5
-1
20
18
1
5.8
- 56
- 89
81
103
1.5
3.6
0.01
1.0
1
30
35
28
33
V
pF
µA
t
ON
t
OFF
t
d
Q
INJ
OIRR
X
TALK
C
NO(off)
C
NC(off)
C
ON
V+
I+
V+ = 3.6 V, V
IN
= 0 or V+
V
NO
or V
NC
= 1.5 V, R
L
= 50
,
C
L
= 35 pF
V+ = 2.7 V, figures 1 and 2
ns
pC
dB
V+ = 3.6 V, V
IN
= 0 or V+, f = 1 MHz
pF
V
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, nor subjected to production test.
e. V
IN
= input voltage to perform proper function.
f. Guaranteed by 3 V leakage testing, not production tested.
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.
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