19-4611; Rev 2; 7/96
Improved, Quad, SPST Analog Switches
_______________General Description
Maxim’s redesigned DG441/DG442 analog switches now
feature on-resistance matching (4Ω max) between
switches and guaranteed on-resistance flatness over the
signal range (9Ω max). These low on-resistance switches
conduct equally well in either direction. They guarantee
low charge injection (10pC max), low power consumption
(1.65mW), and an ESD tolerance of 2000V minimum per
Method 3015.7. The new design offers lower off-leakage
current over temperature (less than 5nA at +85°C).
The DG441/DG442 are quad, single-pole/single-throw
(SPST) analog switches. The DG441 has four normally
closed switches, and the DG442 has four normally open
switches. Switching times are less than 250ns for t
ON
and
less than 70ns for t
OFF
. These devices operate from a sin-
gle +10V to +30V supply, or bipolar ±4.5V to ±20V sup-
plies. Maxim’s improved DG441/DG442 continue to be
fabricated with a 44V silicon-gate process.
______________________New Features
o
o
o
o
o
Plug-In Upgrades for Industry-Standard DG441/DG442
Improved rDS(ON) Match Between Channels(4Ωmax)
Guaranteed rFLAT(ON) Over Signal Range (9Ωmax)
Improved Charge Injection (10pC max)
Improved Off-Leakage Current Over Temperature
(<5nA at +85°C)
o
Withstand Electrostatic Discharge (2000V min)
per Method 3015.7
DG441/DG442
__________________Existing Features
o
Low r
DS(ON)
(85Ω max)
o
Single-Supply Operation +10V to +30V
Bipolar-Supply Operation ±4.5V to ±20V
o
Low Power Consumption (1.65mW max)
o
Rail-to-Rail Signal Handling
o
TTL/CMOS-Logic Compatible
________________________Applications
Sample-and-Hold Circuits
Communication Systems
Test Equipment
Battery-Operated Systems
Heads-Up Displays
Fax Machines
PBX, PABX
Guidance and Control Systems
Audio-Signal Routing
Military Radios
Modems
______________Ordering Information
PART
DG441CJ
DG441CY
DG441C/D
DG441DJ
DG441DY
DG441DK
DG441AK
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
PIN-PACKAGE
16 Plastic DIP
16 Narrow SO
Dice*
16 Plastic DIP
16 Narrow SO
16 CERDIP
16 CERDIP**
Ordering Information continued on last page.
*Contact
factory for dice specifications.
**Contact
factory for availability and processing to MIL-STD-883B.
_____________________Pin Configurations/Functional Diagrams/Truth Tables
TOP VIEW
IN1
D1
S1
V-
GND
S4
D4
IN4
1
2
3
4
5
6
7
8
16
IN2
15
D2
14
S2
13
V+
IN1
D1
S1
V-
GND
S4
D4
IN4
1
2
3
4
5
6
7
8
16
IN2
15
D2
14
S2
13
V+
DG441
12
N.C.
11
S3
10
D3
9
IN3
DG442
12
N.C.
11
S3
10
D3
9
IN3
DIP/SO
LOGIC
0
1
DG441
SWITCH
ON
OFF
SWITCHES SHOWN FOR LOGIC “0” INPUT
DIP/SO
LOGIC
0
1
DG442
SWITCH
OFF
ON
N.C. = Not Internally Connected
_______________________________________________________________________________________
1
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