DG441, DG442
®
Data Sheet
November 20, 2006
FN3281.10
Monolithic, Quad SPST, CMOS Analog
Switches
Features
• ON Resistance (Max). . . . . . . . . . . . . . . . . . . . . . . . . 85Ω
The DG441 and DG442 monolithic CMOS analog switches
are drop-in replacements for the popular DG201A and
DG202 series devices. They include four independent single
pole single throw (SPST) analog switches, TTL and CMOS
compatible digital inputs, and a voltage reference for logic
thresholds.
• Low Power Consumption (P ). . . . . . . . . . . . . . . <1.6mW
D
• Fast Switching Action
- t
- t
(Max) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250ns
ON
(Max, DG441). . . . . . . . . . . . . . . . . . . . . . . . 120ns
OFF
• Low Charge Injection
These switches feature lower analog ON resistance (<85Ω)
• Upgrade from DG201A, DG202
• TTL, CMOS Compatible
and faster switch time (t
<250ns) compared to the
ON
DG201A and DG202. Charge injection has been reduced,
simplifying sample and hold applications.
• Single or Split Supply Operation
• Pb-Free Plus Anneal Available (RoHS Compliant)
The improvements in the DG441 series are made possible
by using a high voltage silicon-gate process. An epitaxial
layer prevents the latch-up associated with older CMOS
technologies. The 44V maximum voltage range permits
Applications
• Audio Switching
controlling 40V
signals. Power supplies may be single
P-P
• Battery Operated Systems
• Data Acquisition
ended from +5V to +34V, symmetrical supplies from ±5V to
±22V or asymmetrical supplies limited to a maximum
differential voltage of 44V with a V+ max of 34V or a V- max
of -25V.
• Hi-Rel Systems
• Sample and Hold Circuits
• Communication Systems
• Automatic Test Equipment
The four switches are bilateral, equally matched for AC or
bidirectional signals. The ON resistance variation with
analog signals is quite low over a ±5V analog input range.
The switches in the DG441 and DG442 are identical,
differing only in the polarity of the selection logic.
Pinout
DG441, DG442
(16 LD PDIP, SOIC, TSSOP)
TOP VIEW
IN
D
1
2
3
4
5
6
7
8
16 IN
2
1
1
1
15 D
2
S
14 S
2
V-
13 V+
12 NC
GND
S
D
11
S
4
4
4
3
10 D
3
9
IN
3
IN
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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