DG441, DG442
Data Sheet
June 1999
File Number
3281.5
Monolithic, Quad SPST, CMOS Analog
Switches
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.
These switches feature lower analog ON resistance (<85鈩?
and faster switch time (t
ON
< 250ns) compared to the
DG201A and DG202. Charge injection has been reduced,
simplifying sample and hold applications.
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
controlling 40V
P-P
signals. Power supplies may be single-
ended from +5V to +34V, or split from
鹵5V
to
鹵20V.
The four switches are bilateral, equally matched for AC or
bidirectional signals. The ON resistance variation with
analog signals is quite low over a
鹵5V
analog input range.
The switches in the DG441 and DG442 are identical,
differing only in the polarity of the selection logic.
Features
鈥?ON Resistance (Max) . . . . . . . . . . . . . . . . . . . . . . . . . 85鈩?/div>
鈥?Low Power Consumption (P
D
) . . . . . . . . . . . . . . . <1.6mW
鈥?Fast Switching Action
- t
ON
(Max) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250ns
- t
OFF
(Max, DG441). . . . . . . . . . . . . . . . . . . . . . . . 120ns
鈥?Low Charge Injection
鈥?Upgrade from DG201A/DG202
鈥?TTL, CMOS Compatible
鈥?Single or Split Supply Operation
Applications
鈥?Audio Switching
鈥?Battery Operated Systems
鈥?Data Acquisition
鈥?Hi-Rel Systems
鈥?Sample and Hold Circuits
鈥?Communication Systems
鈥?Automatic Test Equipment
Ordering Information
PART
NUMBER
DG441DJ
DG441DY
DG442DJ
DG442DY
TEMP. RANGE
(
o
C)
-40 to 85
-40 to 85
-40 to 85
-40 to 85
PACKAGE
16 Ld PDIP
16 Ld SOIC
16 Ld PDIP
16 Ld SOIC
PKG. NO.
E16.3
M16.15
E16.3
M16.15
Functional Diagrams
DG441
S
1
IN
1
D
1
S
2
IN
2
IN
2
D
2
S
3
IN
3
D
3
S
4
IN
3
D
3
S
4
IN
4
D
4
SWITCHES SHOWN FOR LOGIC 鈥?鈥?INPUT
D
4
D
2
S
3
IN
1
D
1
S
2
DG442
S
1
Pinout
DG441, DG442
(PDIP, SOIC)
TOP VIEW
IN
1
1
D
1
2
S
1
3
V- 4
GND 5
S
4
6
D
4
7
IN
4
8
16 IN
2
15 D
2
14 S
2
13 V+
12 NC
11 S
3
10 D
3
9 IN
3
IN
4
TRUTH TABLE
LOGIC
0
1
V
IN
鈮?.8V
鈮?.4V
DG441
ON
OFF
DG442
OFF
ON
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207 | Copyright 漏 Intersil Corporation 1999
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