Analog Devices ADG444, ADG442, ADG441 Datasheet
ADG441
ADG444
D4
S4
D3
S3
D2
S2
D1
S1
IN1
IN2
IN3
IN4
ADG442
D4
S4
D3
S3
D2
S2
D1
S1
IN1
IN2
IN3
IN4
SWITCHES SHOWN FOR A LOGIC "1" INPUT
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Tel: 617/329-4700 Fax: 617/326-8703
REV. 0
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reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
LC2MOS Quad SPST Switches
ADG441/ADG442/ADG444
FEATURES
44 V Supply Maximum Ratings
V
SS
to VDD Analog Signal Range
Low On Resistance (< 70 Ω)
Low ∆RON (9 Ω max)
Low R
ON
Match (3 Ω max)
Low Power Dissipation
Fast Switching Times
t
ON
< 110 ns
t
OFF
< 60 ns
Low Leakage Currents ( 3 nA max)
Low Charge Injection (6 pC max)
Break-Before-Make Switching Action
Latch-Up Proof
Plug-In Upgrade for
DG201A/ADG201A, DG202A/ADG202A,
DG211/ADG211A
Plug in Replacement for DG441/DG442/DG444
APPLICATIONS
Audio and Video Switching
Automatic Test Equipment
Precision Data Acquisition
Battery Powered Systems
Sample Hold Systems
Communication Systems
FUNCTIONAL BLOCK DIAGRAMS
GENERAL DESCRIPTION
The ADG441, ADG442 and ADG444 are monolithic CMOS
devices comprising four independently selectable switches. They
are designed on an enhanced LC
2
MOS process that 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 ensuring 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 a logic high on
the appropriate control input. The ADG441 and ADG444
switches differ in that the ADG444 requires a 5 V logic power
supply which is applied to the V
L
pin. The ADG441 and
ADG442 do not have a V
L
pin, the logic power supply being
generated internally by 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 low
charge injection for minimum transients when switching the
digital inputs.
PRODUCT HIGHLIGHTS
1. Extended Signal Range
The ADG441/ADG442/ADG444 are fabricated on an enhanced LC
2
MOS, trench-isolated process, giving an in-
creased signal range that extends to the supply rails.
2. Low Power Dissipation
3. Low R
ON
4. Trench Isolation Guards Against Latch Up
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.
REV. 0
–2–
B Version T Version
–40°C to –55°C to
Parameter +25°C +85°C +25°C +125°C Units Test Conditions/Comments
ANALOG SWITCH
Analog Signal Range V
SS
to V
DD
VSS to V
DD
V
R
ON
40 40 Ω typ VD = ±8.5 V, IS = –10 mA
70 85 70 85 Ω max V
DD
= +13.5 V, VSS = –13.5 V
∆R
ON
44Ω typ –8.5 V ≤ VD ≤ +8.5 V
99Ω max
R
ON
Match 1 1 Ω typ VD = 0 V, IS = –10 mA
33Ω max
LEAKAGE CURRENTS V
DD
= +16.5 V, VSS = –16.5 V
Source OFF Leakage I
S
(OFF) ±0.01 ±0.01 nA typ VD = ±15.5 V, VS = 715.5 V;
±0.5 ±3 ±0.5 ±20 nA max Test Circuit 2
Drain OFF Leakage I
D
(OFF) ±0.01 ±0.01 nA typ VD = ±15.5 V, VS = 715.5 V;
±0.5 ±3 ±0.5 ±20 nA max Test Circuit 2
Channel ON Leakage I
D
, IS (ON) ±0.08 ±0.08 nA typ VS = VD = ±15.5 V;
±0.5 ±3 ±0.5 ±40 nA max Test Circuit 3
DIGITAL INPUTS
Input High Voltage, V
INH
2.4 2.4 V min
Input Low Voltage, V
INL
0.8 0.8 V max
Input Current
I
INL
or I
INH
±0.00001 ±0.00001 µA typ VIN = V
INL
or V
INH
±0.5 ±0.5 µA max
DYNAMIC CHARACTERISTICS
2
t
ON
85 85 ns typ RL = 1 kΩ, CL = 35 pF;
110 170 110 170 ns max V
S
= ±10 V; Test Circuit 4
t
OFF
45 45 ns typ RL = 1 kΩ, CL = 35 pF;
60 80 60 80 ns max V
S
= ±10 V; Test Circuit 4
t
OPEN
30 30 ns typ RL = 1 kΩ, CL = 35 pF;
Charge Injection 1 1 pC typ V
S
= 0 V, RS = 0 Ω, CL= 1 nF;
6 6 pC max V
DD
= +15 V, VSS = –15 V;
Test Circuit 5
OFF Isolation 60 60 dB typ R
L
= 50 Ω, CL = 5 pF;
f = 1 MHz; Test Circuit 6
Channel-to-Channel Crosstalk 100 100 dB typ R
L
= 50 Ω, CL = 5 pF;
f = 1 MHz; Test Circuit 7
C
S
(OFF) 4 4 pF typ f = 1 MHz
C
D
(OFF) 4 4 pF typ f = 1 MHz
CD, CS (ON) 16 16 pF typ f = 1 MHz
POWER REQUIREMENTS V
DD
= +16.5 V, VSS = –16.5 V
I
DD
Digital Inputs = 0 V or 5 V
ADG441/ADG442 80 80 µA max
ADG444 0.001 0.001 µA typ
1 2.5 1 2.5 µA max
I
SS
0.0001 0.0001 µA typ
1 2.5 1 2.5 µA max
I
L
(ADG444 Only) 0.001 0.001 µA typ VL = +5.5 V
1 2.5 1 2.5 µA max
NOTES
1
Temperature ranges are as follows: B Versions: –40°C to +85°C; T Versions: –55°C to +125°C.
2
Guaranteed by design, not subject to production test.
Specifications subject to change without notice.
ADG441/ADG442/ADG444–SPECIFICATIONS
1
Dual Supply
(V
DD
= +15 V ± 10%, V
SS
= –15 V ± 10%, VL = +5 V ± 10% (ADG444), GND = 0 V, unless otherwise noted)
ORDERING GUIDE
Model
1
Temperature Range Package Option
2
ADG441BN –40°C to +85°C N-16
ADG441BR –40°C to +85°C R-16A
ADG441TQ –55°C to +125°C Q-16
ADG442BN –40°C to +85°C N-16
ADG442BR –40°C to +85°C R-16A
ADG444BN –40°C to +85°C N-16
ADG444BR –40°C to +85°C R-16A
N
OTES
1
To order MIL-STD-883, Class B processed parts, add /883B to T grade part
numbers.
2
N = Plastic DIP, R = 0.15" Small Outline IC (SOIC), Q = Cerdip.
REV. 0
–3–
ADG441/ADG442/ADG444
Table I. Truth Table
ADG441/ADG444 ADG442 Switch
IN IN Condition
01ON
1 0 OFF
B Version T Version
–40°C to –55°C to
Parameter +25°C +85°C +25°C +125°C Units Test Conditions/Comments
ANALOG SWITCH
Analog Signal Range 0 to V
DD
0 to V
DD
V
R
ON
70 70 Ω typ VD = +3 V, +8 V, IS = –10 mA;
110 130 110 130 Ω max V
DD
= +10.8 V
∆R
ON
44Ω typ +3 V ≤ VD ≤ +8 V
99Ω max
R
ON
Match 1 1 Ω typ VD = 6 V, IS = –10 mA
33Ω max
LEAKAGE CURRENT V
DD
= +13.2 V
Source OFF Leakage I
S
(OFF) ±0.01 ± 0.01 nA typ VD = 12.2 V/1 V, VS = 1 V/12.2 V;
± 0.5 ± 3 ± 0.5 ± 20 nA max Test Circuit 2
Drain OFF Leakage I
D
(OFF) ±0.01 ± 0.01 nA typ VD = 12.2 V/1 V, VS = 1 V/12.2 V;
± 0.5 ± 3 ± 0.5 ± 20 nA max Test Circuit 2
Channel ON Leakage I
D
, IS (ON) ±0.08 ±0.08 nA typ VS = VD = 12.2 V/1 V;
±0.5 ±3 ±0.5 ± 40 nA max Test Circuit 3
DIGITAL INPUTS
Input High Voltage, V
INH
2.4 2.4 V min
Input Low Voltage, V
INL
0.8 0.8 V max
Input Current
I
INL
or I
INH
±0.00001 ±0.00001 µA typ VIN = V
INL
or V
INH
±0.5 ±0.5 µA max
DYNAMIC CHARACTERISTICS
2
t
ON
105 105 ns typ RL = 1 kΩ, CL = 35 pF;
150 220 150 220 ns max V
S
= +8 V; Test Circuit 4
t
OFF
40 40 ns typ RL = 1 kΩ, CL = 35 pF;
60 100 60 100 ns max V
S
= +8 V; Test Circuit 4
t
OPEN
50 50 ns typ RL = 1 kΩ, CL = 35 pF;
Charge Injection 2 2 pC typ V
S
= 6 V, RS = 0 Ω, CL = 1 nF;
6 6 pC max V
DD
= +12 V, VSS = 0 V;
Test Circuit 5
OFF Isolation 60 60 dB typ R
L
= 50 Ω,CL= 5 pF, f = 1 MHz;
Test Circuit 6
Channel-to-Channel Crosstalk 100 100 dB typ R
L
=50Ω,CL= 5 pF, f = 1 MHz;
Test Circuit 7
C
S
(OFF) 7 7 pF typ f = 1 MHz
C
D
(OFF) 10 10 pF typ f = 1 MHz
CD, CS (ON) 16 16 pF typ f = 1 MHz
POWER REQUIREMENTS V
DD
= +13.2 V
I
DD
Digital Inputs = 0 V or 5 V
ADG441/ADG442 80 80 µA max
ADG444 0.001 0.001 µA typ
1 2.5 1 2.5 µA max
I
L
(ADG444 Only) 0.001 0.001 µA typ VL = +5.5 V
1 2.5 1 2.5 µA max
NOTES
1
Temperature ranges are as follows: B Versions: –40°C to +85°C; T Versions: –55°C to +125°C.
2
Guaranteed by design, not subject to production test.
Specifications subject to change without notice.
Single Supply
(V
DD
= +12 V ± 10%, V
SS
= 0 V, VL = +5 V ± 10% (ADG444), GND = 0 V, unless otherwise noted)
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