DG2018, DG2019
Vishay Siliconix
Low Voltage, Dual DPDT and Quad SPDT Analog Switches
DESCRIPTION
FEATURES
The DG2018 and DG2019 are low voltage, single supply
analog switches. The DG2018 is a dual double-pole/double-
throw (DPDT) with two control inputs that each controls a
pair of single-pole/double-throw (SPDT). The DG2019 uses
one control pin to operate four independent SPDT switches.
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Low voltage operation (1.8 V to 5.5 V)
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Low on resistance
- RDS(on): 6 Ω at 2.7 V
Low voltage logic compatible
- DG2019: VINH = 1 V
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When operated on a + 3 V supply, the DG2018’s control pins
are compatible with 1.8 V digital logic. The DG2019 has an
available feature of a VL pin that allows a 1.0 V threshold for
the control pin when VL is powered with 1.5 V.
High bandwidth: 180 MHz
• QFN-16 package
BENEFITS
Built on Vishay Siliconix’s low voltage submicron CMOS
process, the DG2018 and DG2019 are ideal for high
performance switching of analog signals; providing low on-
resistance (6 Ω at + 2.7 V), fast speed (Ton, Toff at 42 ns and
16 ns), and a bandwidth that exceeds 180 MHz.
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Ideal for both analog and digital signal switching
Reduced power consumption
High accuracy
Reduced PCB space
Fast switching
The DG2018 and DG2019 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.
Low leakage
APPLICATIONS
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Cellular phones
An epitaxial layer prevents latch-up. Brake-before-make is
guaranteed for all SPDT’s. All switches conduct equally well
in both directions when on, and blocks up to the power
supply level when off.
Audio and video signal routing
PCMCIA cards
Battery operated systems
Portable instrumentation
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
DG2018DN
QFN-16 (3 X 3)
TRUTH TABLE
IN1, IN2
COM1 NO1
16 15
V+
14
NC4
13
Logic
NC1 and NC2
NO1 and NO2
0
1
ON
OFF
ON
OFF
IN3, IN4
NC1
IN1, IN2
NO2
COM4
NO4
1
2
3
4
12
11
10
9
Logic
NC3 and NC4
NO3 and NO4
0
1
ON
OFF
ON
OFF
IN3, IN4
NC3
COM2
ORDERING INFORMATION
Temp. Range
Package
Part Number
5
6
7
8
- 40 °C to 85 °C
QFN-16 (3 x 3 mm)
DG2018DN
NC2 GND NO3 COM3
Top View
Document Number: 72342
S-82626-Rev. C, 03-Nov-08
www.vishay.com
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