DG444C/ MAXIM [Maxim Integrated Products], DG444C/ Datasheet

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DG444C/

Manufacturer Part Number
DG444C/
Description
Improved, Quad, SPST Analog Switches
Manufacturer
MAXIM [Maxim Integrated Products]
Datasheet
1.DG444C.pdf (8 pages)
Maxim’s redesigned DG444/DG445 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 (35µW max), 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 DG444/DG445 are quad, single-pole/single-throw
(SPST) analog switches. The DG444 has 4 normally
closed switches and the DG445 has 4 normally open
switches. Switching times are less than 250ns for t
and less than 70ns for t
+10V to +30V supply, or bipolar ±4.5V to ±20V sup-
plies. Maxim’s improved DG444/DG445 continue to be
fabricated with a 44V silicon-gate process.
________________________Applications
19-4705; Rev 1; 4/94
Call toll free 1-800-998-8800 for free samples or literature.
_______________General Description
_____________________Pin Configurations/Functional Diagrams/Truth Tables
Sample-and-Hold Circuits
Test Equipment
Heads-Up Displays
Guidance and Control Systems Audio Signal Routing
Military Radios
TOP VIEW
________________________________________________________________ Maxim Integrated Products
Improved, Quad, SPST Analog Switches
GND
IN1
IN4
D4
D1
S1
S4
V-
OFF
1
2
3
4
5
6
7
8
. Operation is from a single
LOGIC
1
0
DIP/SO
DG444
DG444
Communication Systems
Battery-Operated Systems
PBX, PABX
Modems/Faxes
SWITCH
OFF
ON
16
15
14
13
12
11
10
9
IN2
D2
S2
V+
V
S3
D3
IN3
SWITCHES SHOWN FOR LOGIC "0" INPUT
L
ON
Ordering Information continued at end of data sheet.
* Contact factory for dice specifications.
______________________New Features
__________________Existing Features
______________Ordering Information
DG444CJ
DG444DY
DG444C/D
DG444DJ
DG444DY
Plug-In Upgrades for Industry-Standard DG444/DG445
Improved r
Guaranteed r
Improved Charge Injection (10pC max)
Improved Off Leakage Current Over Temperature
(<5nA at +85°C)
Withstand Electrostatic Discharge (2000V min)
per Method 3015.7
Low r
Single-Supply Operation +10V to +30V
Bipolar-Supply Operation ±4.5V to ±20V
Low Power Consumption (35µW max)
Rail-to-Rail Signal Handling
TTL/CMOS-Logic Compatible
PART
GND
DS(ON)
IN1
IN4
D1
S1
S4
D4
V-
1
2
3
4
5
6
7
8
ON
LOGIC
FLAT(ON)
(85Ω max)
1
0
Match Between Channels (4Ω max)
DG445
DIP/SO
-40°C to +85°C
-40°C to +85°C
TEMP. RANGE
DG445
0°C to +70°C
0°C to +70°C
0°C to +70°C
SWITCH
Over Signal Range (9Ω max)
OFF
ON
16
15
14
13
12
11
10
9
V+
V
S3
D3
IN3
IN2
D2
S2
L
PIN-PACKAGE
16 Plastic DIP
16 Narrow SO
Dice*
16 Plastic DIP
16 Narrow SO
1

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DG444C/ Summary of contents

Page 1

... Single-Supply Operation +10V to +30V Bipolar-Supply Operation ±4.5V to ±20V ON Low Power Consumption (35µW max) Rail-to-Rail Signal Handling TTL/CMOS-Logic Compatible ______________Ordering Information PART DG444CJ DG444DY DG444C/D DG444DJ DG444DY Ordering Information continued at end of data sheet. * Contact factory for dice specifications. IN1 1 16 IN2 2 ...

Page 2

... Continuous Power Dissipation (T 16-Pin Plastic DIP (derate 10.53mW/°C above +70°C) 842mW 16-Pin Narrow SO (derate 8.70mW/°C above +70°C) ..696mW Operating Temperature Ranges DG444C/DG445C ................................................0°C to +70°C DG444D/DG445D .............................................-40°C to +85°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10sec) .............................+300° ...

Page 3

Improved, Quad, SPST Analog Switches ELECTRICAL CHARACTERISTICS—Dual Supplies (continued) (V+ = 15V -15V 5V, GND = 0V PARAMETER SYMBOL SUPPLY Power-Supply Range V+, V- All channels on or off, Positive Supply Current I+ V+ ...

Page 4

Improved, Quad, SPST Analog Switches ELECTRICAL CHARACTERISTICS—Single Supply (V+ = 12V 0V 5V, GND = 0V INH PARAMETER SYMBOL SWITCH Analog Signal Range V (Note 3) ANALOG V+ = 10.8V, Drain-Source ...

Page 5

Improved, Quad, SPST Analog Switches ____________________________Typical Operating Characteristics (continued +25°C, unless otherwise noted.) A ON-RESISTANCE vs AND UNIPOLAR-SUPPLY VOLTAGE 150 125 V+ = 10V 100 V+ = 15V 20V 50 ...

Page 6

Improved, Quad, SPST Analog Switches _____________________Pin Description PIN NAME FUNCTION 1, 16 IN1-IN4 Logic Control Inputs 2, 15, 10, 7 D1-D4 Drain Outputs 3, 14, 11, 6 S1-S4 Source Outputs 4 V- Negative Supply-Voltage Input 5 GND Ground ...

Page 7

Improved, Quad, SPST Analog Switches _________________________________Timing Diagrams/Test Circuits (continued) V OUT IN OFF ON DG444 OFF OUT L DG445 Figure 3. Charge Injection +15V +5V 10nF SIGNAL V+ V GENERATOR 10dBm ...

Page 8

Improved, Quad, SPST Analog Switches _Ordering Information (continued) PART TEMP. RANGE DG445CJ 0°C to +70°C DG445CY 0°C to +70°C DG445C/D 0°C to +70°C DG445DJ -40°C to +85°C DG445DY -40°C to +85°C * Contact factory for dice specifications. ________________________________________________________Package Information D1 ...

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