FEATURES
44 V Supply Maximum Ratings
615 V Analog Signal Range
Low On Resistance (<35 V)
Ultralow Power Dissipation (35 mW)
Fast Switching Times
t
<175 ns
ON
t
<145 ns
OFF
TTL/CMOS Compatible
Plug-In Replacement for DG411/DG412/DG413
APPLICATIONS
Audio and Video Switching
Automatic Test Equipment
Precision Data Acquisition
Battery Powered Systems
Sample Hold Systems
Communication Systems
GENERAL DESCRIPTION
The ADG411, ADG412 and ADG413 are monolithic CMOS
devices comprising four independently selectable switches. They
are designed on an enhanced LC
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 excellent linearity and low distortion when
switching audio signals. Fast switching speed coupled with high
signal bandwidth also make 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 ADG411, ADG412 and ADG413 contain four independent SPST switches. The ADG411 and ADG412 differ only in
that the digital control logic is inverted. The ADG411 switches
are turned on with a logic low on the appropriate control input,
while a logic high is required for the ADG412. The ADG413
has two switches with digital control logic similar to that of the
ADG411 while the logic is inverted on the other two switches.
Each switch conducts equally well in both directions when ON
and each has an input signal range that extends to the 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.
2
MOS process which provides
Precision Quad SPST Switches
ADG411/ADG412/ADG413
FUNCTIONAL BLOCK DIAGRAMS
IN1
IN2
IN3
IN4
S1
D1
S2
D2
S3
D3
S4
D4
ADG413
IN1
IN2
ADG412
IN3
IN4
S1
D1
S2
D2
S3
D3
S4
D4
IN1
IN2
ADG411
IN3
IN4
SWITCHES SHOWN FOR A LOGIC "1" INPUT
PRODUCT HIGHLIGHTS
1. Extended Signal Range
The ADG411, ADG412 and ADG413 are fabricated on an
enhanced LC
2
MOS, giving an increased signal range which
extends fully to the supply rails.
2. Ultralow Power Dissipation
3. Low R
ON
4. Break-Before-Make Switching
This prevents channel shorting when the switches are
configured as a multiplexer.
5. Single Supply Operation
For applications where the analog signal is unipolar, the
ADG411, ADG412 and ADG413 can be operated from a
single rail power supply. The parts are fully specified with a
single +12 V power supply and will remain functional with
single supplies as low as +5 V.
S1
D1
S2
D2
S3
D3
S4
D4
REV. A
Information furnished by Analog Devices is believed to be accurate and
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.
Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent 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.
2
Overvoltages at IN, S or D will be clamped by internal diodes. Current should be
limited to the maximum ratings given.
ORDERING GUIDE
l
Model
Temperature RangePackage Option
ADG411BN–40°C to +85° CN-16
ADG411BR–40°C to +85°CR-16A
ADG411TQ–55°C to +125°CQ-16
ADG411BRU–40°C to +85°CRU-16
ADG412BN–40 °C to +85°CN-16
ADG412BR–40°C to +85°CR-16A
ADG412TQ–55°C to +125°CQ-16
ADG413BN–40 °C to +85°CN-16
ADG413BR–40°C to +85°CR-16A
NOTES
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); RU= Thin Shrink Small
Outline (TSSOP); Q = Cerdip.
1
30 mA, Whichever Occurs First
2
TERMINOLOGY
V
DD
V
SS
Most positive power supply potential.
Most negative power supply potential in dual
supplies. In single supply applications, it may
be connected to GND.
V
L
Logic power supply (+5 V).
GNDGround (0 V) reference.
SSource terminal. May be an input or output.
DDrain terminal. May be an input or output.
INLogic control input.
R
ON
I
(OFF)Source leakage current with the switch “OFF.”
S
I
(OFF)Drain leakage current with the switch “OFF.”
D
I
, IS (ON)Channel leakage current with the switch “ON.”
D
V
)Analog voltage on terminals D, S.
D (VS
C
(OFF)“OFF” switch source capacitance.
S
C
(OFF)“OFF” switch drain capacitance.
D
C
, CS (ON)“ON” switch capacitance.
D
t
ON
Ohmic resistance between D and S.
Delay between applying the digital control
input and the output switching on.
t
OFF
Delay between applying the digital control
input and the output switching off.
t
D
“OFF” time or “ON” time measured between
the 90% points of both switches, when switching
from one address state to another.
CrosstalkA measure of unwanted signal which is coupled
through from one channel to another as a result
of parasitic capacitance.
Off IsolationA measure of unwanted signal coupling
through an “OFF” switch.
ChargeA measure of the glitch impulse transferred
Injectionfrom the digital input to the analog output
during switching.
PIN CONFIGURATION
(DIP/SOIC)
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 the ADG411/ADG412/ADG413 feature 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.
WARNING!
ESD SENSITIVE DEVICE
REV. A–4–
Page 5
Typical Performance Graphs
VD OR VS – DRAIN OR SOURCE VOLTAGE – V
0.04
0.02
–0.04
–20–10
LEAKAGE CURRENT – nA
01020
0.00
–0.02
VDD = +15V
V
SS
= –15V
TA = +258C
VL = +5V
ID (ON)
I
S
(OFF)
ID (OFF)
ADG411/ADG412/ADG413
50
40
30
– V
ON
R
20
10
VDD = +15V
V
= –15V
SS
0
–20–10
VD OR VS – DRAIN OR SOURCE VOLTAGE – V
VDD = +5V
V
SS
VDD = +10V
V
= –10V
SS
= –5V
01020
TA = +258C
VL = +5V
VDD = +12V
V
= –12V
SS
Figure 1. On Resistance as a Function of VD (VS) Dual
Supplies
50
VDD = +15V
V
= –15V
SS
40
30
– V
ON
R
20
10
VL = +5V
+1258C
+858C
+258C
50
40
30
– V
ON
R
20
10
0
05
VDD = +5V
V
SS
V
V
VD OR VS – DRAIN OR SOURCE VOLTAGE – V
= 0V
= +10V
DD
= 0V
SS
VDD = +12V
V
= 0V
SS
VDD = +15V
V
= 0V
SS
101520
TA = +258C
VL = +5V
Figure 4. On Resistance as a Function of VD (VS) Single
Supply
100mA
VDD = +15V 4 SW
V
10mA
100mA
SUPPLY
I
10mA
1mA
1mA
= –15V
SS
VL = +5V
1 SW
I+, I–
I
L
Figure 2. On Resistance as a Function of VD (VS) for
Different Temperatures
Figure 3. Leakage Currents as a Function of Temperature
REV. A–5–
0
–20–10
VD OR VS – DRAIN OR SOURCE VOLTAGE – V
10
VDD = +15V
V
= –15V
SS
VL = +5V
1
VS = 615V
V
= 615V
D
0.1
LEAKAGE CURRENT – nA
0.01
0.001
10010M1k
ID (ON)
01020
IS (OFF)
I
(OFF)
D
10k100k1M
FREQUENCY – Hz
10M
100nA
10
1k10k100k1M
FREQUENCY – Hz
10M100
Figure 5. Supply Current vs. Input Switching Frequency
Figure 6. Leakage Currents as a Function of VD (VS)
Page 6
ADG411/ADG412/ADG413
+15V
–15V
2200pF
R
C
75V
C
C
1000pF
C
H
2200pF
V
OUT
ADG411
ADG412
ADG413
SW2
SW1
S
S
D
D
+15V+5V
–15V
AD845
+15V
–15V
V
IN
AD711
120
100
80
OFF ISOLATION – dB
60
40
10010M1k
10k100k1M
FREQUENCY – Hz
Figure 7. Off Isolation vs. Frequency
110
100
90
VDD = +15V
V
= –15V
SS
VL = +5V
VDD = +15V
V
= –15V
SS
VL = +5V
APPLICATION
Figure 9 illustrates a precise, fast, sample-and-hold circuit. An
AD845 is used as the input buffer while the output operational
amplifier is an AD711. During the track mode, SW1 is closed
and the output V
follows the input signal VIN. In the hold
OUT
mode, SW1 is opened and the signal is held by the hold capaci-
.
tor C
H
Due to switch and capacitor leakage, the voltage on the hold
capacitor will decrease with time. The ADG411/ADG412/
ADG413 minimizes this droop due to its low leakage specifications. The droop rate is further minimized by the use of a polystyrene hold capacitor. The droop rate for the circuit shown is
typically 30 µV/µs.
A second switch, SW2, which operates in parallel with SW1, is
included in this circuit to reduce pedestal error. Since both
switches will be at the same potential, they will have a differential effect on the op amp AD711, which will minimize charge
injection effects. Pedestal error is also reduced by the compensation network R
and CC. This compensation network also re-
C
duces the hold time glitch while optimizing the acquisition time.
Using the illustrated op amps and component values, the pedestal error has a maximum value of 5 mV over the ±10 V input
range. Both the acquisition and settling times are 850 ns.
80
CROSSTALK – dB
70
60
10010M1k
10k100k1M
FREQUENCY – Hz
Figure 8. Crosstalk vs. Frequency
Figure 9. Fast, Accurate Sample-and-Hold
REV. A–6–
Page 7
SD
V
S
V
D
A
I
D
(ON)
Test Circuits
V
S
I
DS
V1
SD
RON = V1/I
DS
V
S
I
(OFF)
S
A
SD
I
D
(OFF)
A
V
D
ADG411/ADG412/ADG413
Test Circuit 1. On Resistance
0.1mF0.1mF
V
S
0.1mF0.1mF
V
S1
V
S2
S1D1
S2
IN1, IN2
V
IN
GND
+15V+5V
V
DDVL
V
0.1mF
–15V
IN
SS
Test Circuit 2. Off Leakage
+15V+5V
3V
V
DDVL
SD
V
GND
SS
0.1mF
–15V
R
L
300V
C
L
35pF
V
OUT
V
ADG411
IN
V
IN
V
OUT
3V
ADG412
t
Test Circuit 4. Switching Times
3V
V
IN
0V
V
OUT1
V
V
OUT1
OUT2
0V
90%
0V
R
C
L1
V
C
L2
35pF
OUT2
300V
D2
R
L2
300V
L1
35pF
Test Circuit 5. Break-Before-Make Time Delay
50%50%
50%50%
90%90%
ON
t
OFF
50%50%
90%
t
D
Test Circuit 3. On Leakage
90%
90%
t
D
+15V+5V
V
DDVL
C
L
10nF
V
OUT
R
S
V
S
SD
IN
GND
V
SS
–15V
Test Circuit 6. Charge Injection
REV. A–7–
3V
V
IN
V
OUT
Q
INJ
= CL 3 DV
OUT
DV
OUT
Page 8
ADG411/ADG412/ADG413
V
S
0.005 (0.13) MIN
0.200 (5.08)
MAX
0.200 (5.08)
0.125 (3.18)
+15V+5V
0.1mF0.1mF
V
DDVL
SD
IN
V
IN
GND
0.1mF
–15V
Test Circuit 7. Off Isolation
16-Lead Cerdip
(Q-16)
0.080 (2.03) MAX
16
1
0.840 (21.34) MAX
0.023 (0.58)
0.014 (0.36)
PIN 1
0.100
(2.54)
BSC
9
8
0.070 (1.78)
0.030 (0.76)
V
SS
0.310 (7.87)
0.220 (5.59)
0.060 (1.52)
0.015 (0.38)
SEATING
PLANE
0.150
(3.81)
MIN
V
OUT
R
L
50V
V
S
V
OUT
Test Circuit 8. Channel-to-Channel Crosstalk
MECHANICAL INFORMATION
Dimensions are shown in inches and (mm).
0.1574 (4.00)
0.1497 (3.80)
0.320 (8.13)
0.290 (7.37)
0.0098 (0.25)
0.0040 (0.10)
15°
0.015 (0.38)
0.008 (0.20)
0°
SEATING
PLANE
0.1mF0.1mF
V
IN1
R
L
50V
0.3937 (10.00)
0.3859 (9.80)
169
PIN 1
0.0500
(1.27)
BSC
+15V+5V
V
DDVL
SD
DS
V
GND
SS
0.1mF
–15V
16-Lead SOIC
(R-16A)
0.2440 (6.20)
81
0.2284 (5.80)
0.0688 (1.75)
0.0532 (1.35)
0.0192 (0.49)
0.0138 (0.35)
50V
V
IN2
NC
CHANNEL TO CHANNEL
CROSSTALK = 20 3 LOG V
0.0196 (0.50)
0.0099 (0.25)
88
08
0.0099 (0.25)
0.0075 (0.19)
0.0500 (1.27)
0.0160 (0.41)
C1748a–3–2/98
S/VOUT
x 458
0.210 (5.33)
MAX
0.160 (4.06)
0.115 (2.93)
16-Lead Plastic DIP (Narrow)
(N-16)
0.840 (21.34)
0.745 (18.92)
16
18
PIN 1
0.022 (0.558)
0.014 (0.356)
0.100
(2.54)
BSC
9
0.280 (7.11)
0.240 (6.10)
0.060 (1.52)
0.015 (0.38)
0.070 (1.77)
0.045 (1.15)
0.130
(3.30)
MIN
SEATING
PLANE
0.325 (8.26)
0.300 (7.62)
0.015 (0.381)
0.008 (0.204)
0.195 (4.95)
0.115 (2.93)
0.177 (4.50)
0.006 (0.15)
0.002 (0.05)
SEATING
PLANE
0.201 (5.10)
0.193 (4.90)
16
0.169 (4.30)
1
PIN 1
0.0256
(0.65)
BSC
16-Lead TSSOP
(RU-16)
9
0.256 (6.50)
8
0.0433
(1.10)
0.0118 (0.30)
0.0075 (0.19)
MAX
0.246 (6.25)
0.0079 (0.20)
0.0035 (0.090)
8°
0°
0.028 (0.70)
0.020 (0.50)
PRINTED IN U.S.A.
REV. A–8–
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