DG444DY-T Datasheet, PDF (1/10 Pages) Maxim Integrated Products – Improved, Quad, SPST Analog Switches

19-4705; Rev 4; 6/04
Improved, Quad, SPST Analog Switches
General Description
New Features
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 electrostatic dis-
charge (ESD) tolerance of 2000V (min) 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 four normally
closed switches and the DG445 has four normally open
switches. Switching times are less than 250ns for t_ON
and less than 70ns for t_OFF. Operation is from a single
+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.
♦ Plug-In Upgrades for Industry-Standard DG444/DG445
♦ Improved R_ON Match Between Channels (4Ω max)
♦ Guaranteed R_FLAT(ON) Over Signal Range (9Ω max)
♦ Improved Charge Injection (10pC max)
♦ Improved Off-Leakage Current Over Temperature
(< 5nA at +85°C)
♦ Withstand ESD (2000V min)
per Method 3015.7
Existing Features
♦ Low R_DS(ON) (85Ω max)
♦ 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
________________________Applications
Sample-and-Hold Circuits Communication Systems
Test Equipment
Battery-Operated Systems
Heads-Up Displays
PBX, PABX
Guidance and Control
Systems
Military Radios
Audio Signal Routing
Modems/Faxes
PART
DG444CJ
DG444CY
DG444C/D
DG444DJ
DG444DY
Ordering Information
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
PIN-PACKAGE
16 Plastic DIP
16 Narrow SO
Dice*
16 Plastic DIP
16 Narrow SO
Ordering Information continued at end of data sheet.
*Contact factory for dice specifications.
Pin Configurations/Functional Diagrams/Truth Tables
TOP VIEW
IN1 1
D1 2
S1 3
V- 4
GND 5
S4 6
DG444
16 IN2
15 D2
14 S2
13 V+
12 VL
11 S3
D1 IN1 IN2 D2
16
15
14
13
S1 1
V- 2
GND 3
DG444
D4 7
IN4 ₈
10 D3
9 IN3
S4 4
DIP/SO
DG444
LOGIC
SWITCH
0
ON
1
OFF
5
6
7
8
D4 IN4 IN3 D3
Thin QFN
SWITCHES SHOWN FOR LOGIC "0" INPUT
Pin Configurations continued at end of data sheet.
12 S2
11 V+
10 V_L
9 S3
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.