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ANALOG DEVICES
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ADG441
Service Manual
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Datasheet
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Table of contents
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ANALOG DEVICES ADG441 Service Manual

www.BDTIC.com/ADI
LC2MOS Quad SPST Switches

FEATURES

44 V supply maximum ratings
to VDD analog signal range
V
SS
Low on resistance (<70 Ω) Low ∆RON (9 Ω max) Low R Low power dissipation Fast switching times
Low leakage currents (3 nA max) Low charge injection (6 pC max) Break-before-make switching action Latch-up proof A grade Plug-in upgrade for DG201A/ADG201A, DG202A/ADG202A,
Plug-in replacement for DG441/DG442/DG444

APPLICATIONS

Audio and video switching Automatic test equipment Precision data acquisition Battery-powered systems Sample-and-hold systems Communication systems

GENERAL DESCRIPTION

The ADG441, ADG442, and ADG444 are monolithic CMOS devices that comprise of four independently selectable switches. They are designed on an enhanced LC provides low power dissipation yet gives high switching speed and low on resistance.
The on resistance profile is very flat over the full analog input range, which ensures good linearity and low distortion when switching audio signals. High switching speed also makes the parts suitable for video signal switching. CMOS construction ensures ultralow power dissipation, making the parts ideally suited for portable and battery-powered instruments. The ADG441, ADG442, and ADG444 contain four independent SPST switches. Each switch of the ADG441 and ADG444 turns on when a logic low is applied to the appropriate control input. The ADG442 switches are turned on with logic high on the appropriate control input. The ADG441 and ADG444 switches
match (3 Ω max)
ON
< 110 ns
t
ON
t
< 60 ns
OFF
DG211/ADG211A
2
MOS process that
ADG441/ADG442/ADG444

FUNCTIONAL BLOCK DIAGRAM

S1
IN1
IN2
ADG441 ADG444
IN3
IN4
SWITCHES SHOWN FOR A LOGIC 1 INPUT
IN1
D1 S2
IN2
D2 S3
IN3
D3 S4
IN4
D4
Figure 1.
ADG442
differ in that the ADG444 requires a 5 V logic power supply that is applied to the V have a V
pin, the logic power supply is generated internally by
L
pin. The ADG441 and ADG442 do not
L
an on-chip voltage generator.
Each switch conducts equally well in both directions when ON and has an input signal range that extends to the power supplies. In the OFF condition, signal levels up to the supplies are blocked. All switches exhibit break-before-make switching action for use in multiplexer applications. Inherent in the design is the low charge injection for minimum transients when switching the digital inputs.

PRODUCT HIGHLIGHTS

1. Extended signal range. The ADG441A/ADG442A/
ADG444A are fabricated on an enhanced LC isolated process, giving an increased signal range that extends to the supply rails.
2. Low power dissipation.
3. Low R
4. Trench isolation guards against latch-up for A grade parts. A
dielectric trench separates the P and N channel transistors thereby preventing latch-up even under severe overvoltage conditions.
5. Break-before-make switching. This prevents channel
shorting when the switches are configured as a multiplexer.
6. Single-supply operation. For applications where the analog
signal is unipolar, the ADG441/ADG442/ADG444 can be operated from a single-rail power supply. The parts are fully specified with a single 12 V power supply.
ON
.
S1
D1 S2
D2 S3
D3 S4
D4
2
MOS, trench-
05233-001
Rev. A
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2005 Analog Devices, Inc. All rights reserved.
ADG441/ADG442/ADG444
www.BDTIC.com/ADI

TABLE OF CONTENTS

Specifications..................................................................................... 3
Dual Supply ................................................................................... 3
Single Supply ................................................................................. 4
Absolute Maximum Ratings............................................................ 5
ESD Caution.................................................................................. 5
Pin Configurations and Function Descriptions ........................... 6
Typical Performance Characteristics ............................................. 7

REVISION HISTORY

5/05—Data Sheet Changed from Rev. 0 to Rev. A
Changes to Format ............................................................. Universal
Deleted CERDIP Package and T Grade ..........................Universal
Changes to Features and Product Highlights ............................... 1
Changes to Test Conditions in Table 2 .......................................... 4
Changes to Figure 11........................................................................ 8
Changes to Trench Isolation Section ........................................... 12
Updated Outline Dimensions....................................................... 13
Changes to Ordering Guide.......................................................... 14
Test Ci r c ui t s ........................................................................................9
Te r mi n ol o g y .................................................................................... 11
Trench Is o latio n .............................................................................. 12
Outline Dimensions ....................................................................... 13
Ordering Guide .......................................................................... 14
4/94–Revision 0: Initial Version
Rev. A | Page 2 of 16
ADG441/ADG442/ADG444
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SPECIFICATIONS

DUAL SUPPLY

VDD = +15 V ± 10%, VSS = −15 V ± 10%, VL = +5 V ± 10% (ADG444), GND = 0 V, unless otherwise noted.
Table 1.
B Version Parameter +25°C −40°C to +85°C Unit Test Conditions/Comments
ANALOG SWITCH
Analog Signal Range VSS to VDD V RON 40 Ω typ VD = ±8.5 V, IS = −10 mA 70 85 Ω max VDD = +13.5 V, VSS = −13.5 V ∆RON 4 Ω typ −8.5 V ≤ VD ≤ +8.5 V 9 Ω max
RON Match 1 Ω typ VD = 0 V, IS = −10 mA 3 Ω max LEAKAGE CURRENTS VDD = +16.5 V, VSS = −16.5 V
Source OFF Leakage IS (OFF) ±0.01 nA typ
±0.5 ±3 nA max See Figure 15
Drain OFF Leakage ID (OFF) ±0.01 nA typ
±0.5 ±3 nA max See Figure 15
Channel ON Leakage ID, IS (ON) ±0.08 nA typ VS = VD = ±15.5 V ±0.5 ±3 nA max See Figure 16 DIGITAL INPUTS
Input High Voltage, V
Input Low Voltage, V
Input Current
I
or I
INL
±0.5 µA max DYNAMIC CHARACTERISTICS
tON 85 ns typ RL = 1 kΩ, CL = 35 pF;
110 170 ns max VS = ±10 V; see Figure 17
t
45 ns typ RL = 1 kΩ, CL = 35 pF;
OFF
60 80 ns max VS = ±10 V; see Figure 17
t
30 ns typ RL = 1 kΩ, CL = 35 pF;
OPEN
Charge Injection 1 pC typ VS = 0 V, RS = 0 Ω, CL = 1 nF;
6 pC max VDD = +15 V, VSS = –15 V; see Figure 18
OFF Isolation 60 dB typ RL = 50 Ω, CL = 5 pF; f = 1 MHz; see Figure 19
Channel-to-Channel Crosstalk 100 dB typ RL = 50 Ω, CL = 5 pF; f= 1 MHz; see Figure 20
CS (OFF) 4 pF typ f = 1 MHz
CD (OFF) 4 pF typ f = 1 MHz
CD, CS (ON) 16 pF typ f = 1 MHz POWER REQUIREMENTS VDD = +16.5 V, VSS = −16.5 V
I
DD
ADG441/ADG442 80 µA max ADG444 0.001 µA typ
1 2.5 µA max
ISS 0.0001 µA typ 1 2.5 µA max
IL (ADG444 Only) 0.001 µA typ VL = 5.5 V 1 2.5 µA max
1
Temperature range is: B Version: −40°C to +85°C.
2
Guaranteed by design, not subject to production test.
1
2.4 V min
INH
0.8 V max
INL
±0.00001 µA typ VIN = V
INH
2
Digital Inputs = 0 V or 5 V
= ±15.5 V, VS = ∓15.5 V
V
D
= ±15.5 V, VS = ∓15.5 V
V
D
or V
INH
INL
Rev. A | Page 3 of 16
ADG441/ADG442/ADG444
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SINGLE SUPPLY

1
VDD = +12 V ± 10%, VSS = 0 V, VL = +5 V ± 10% (ADG444), GND = 0 V, unless otherwise noted.
Table 2.
B Version
Parameter +25°C −40°C to +85°C Unit Test Conditions/Comments
ANALOG SWITCH
Analog Signal Range 0 to VDD V RON 70 Ω typ VD = +3 V, +8 V, IS = −5 mA 110 130 Ω max VDD = 10.8 V ∆RON 4 Ω typ 3 V ≤ VD ≤ 8 V 9 Ω max RON Match 1 Ω typ VD = +6 V, IS = −5 mA 3 Ω max
LEAKAGE CURRENT VDD = 13.2 V
Source OFF Leakage IS (OFF) ±0.01 nA typ VD = 12.2 V/1 V, VS = 1 V/12.2 V ±0.5 ±3 nA max See Figure 15 Drain OFF Leakage ID (OFF) ±0.01 nA typ VD = 12.2 V/1 V, VS = 1 V/12.2 V ±0.5 ±3 nA max See Figure 15 Channel ON Leakage ID, IS (ON) ±0.08 nA typ VS = VD = 12.2 V/1 V ±0.5 ±3 nA max Figure 16
DIGITAL INPUTS
Input High Voltage, V Input Low Voltage, V
2.4 V min
INH
0.8 V max
INL
Input Current
I
or I
±0.00001 µA typ VIN = V
INL
INH
INL
or V
INH
±0.5 µA max DYNAMIC CHARACTERISTICS
2
tON 105 ns typ RL = 1 kΩ, CL = 35 pF 150 220 ns max VS = 8 V; Figure 17 t
40 ns typ RL = 1 kΩ, CL = 35 pF
OFF
60 100 ns max VS = 8 V; Figure 17 t
50 ns typ RL = 1 kΩ, CL = 35 pF
OPEN
Charge Injection 2 pC typ VS = 6 V, RS = 0 Ω, CL = 1 nF 6 pC max VDD = 12 V, VSS = 0 V; see Figure 18 OFF Isolation 60 dB typ RL = 50 Ω, CL = 5 pF, f = 1 MHz; see Figure 19 Channel-to-Channel Crosstalk 100 dB typ RL = 50 Ω, CL = 5 pF, f = 1 MHz; see Figure 20 CS (OFF) 7 pF typ f = 1 MHz CD (OFF) 10 pF typ f = 1 MHz CD, CS (ON) 16 pF typ f = 1 MHz
POWER REQUIREMENTS VDD = 13.2 V
IDD Digital Inputs = 0 V or 5 V
ADG441/ADG442 80 µA max ADG444 0.001 µA typ
1 2.5 µA max IL (ADG444 Only) 0.001 µA typ VL = 5.5 V
1 2.5 µA max
1
Temperature range is: B Version: −40°C to +85°C.
2
Guaranteed by design, not subject to production test.
Rev. A | Page 4 of 16
ADG441/ADG442/ADG444
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ABSOLUTE MAXIMUM RATINGS

TA = 25°C unless otherwise noted.
Table 3.
Parameter Rating
VDD to V
SS
VDD to GND −0.3 V to +25 V VSS to GND +0.3 V to −25 V VL to GND −0.3 V to VDD + 0.3 V Analog, Digital Inputs VSS − 2 V to VDD + 2 V or 30 mA, Whichever Occurs First Continuous Current, S or D 30 mA Peak Current, S or D (Pulsed at 1 ms, 10% Duty Cycle Max) 100 mA Operating Temperature Range
Industrial (B Version) −40°C to +85°C Storage Temperature Range −65°C to +150°C Junction Temperature 150°C Lead Temperature, Soldering (10 sec) 300°C Plastic Package, Power Dissipation 470 mW θJA, Thermal Impedance 177°C/W Lead Temperature, Soldering (10 sec) 260°C SOIC Package, Power Dissipation 600 mW θJA, Thermal Impedance 77°C/W Lead Temperature, Soldering
Vapor Phase (60 sec) 215°C
Infrared (15 sec) 220°C
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those listed in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Only one absolute maximum rating may be applied at any one time.
44 V
Table 4. Truth Table
ADG441/ADG444 IN ADG442 IN Switch Condition
0 1 ON 1 0 OFF

ESD CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although this product features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality.
Rev. A | Page 5 of 16
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