Datasheet ADG413BR, ADG413BN, ADG412TQ, ADG412BR, ADG412BN Datasheet (Analog Devices)

...
Page 1
LC2MOS
a
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 World Wide Web Site: http://www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 1998
Page 2
ADG411/ADG412/ADG413–SPECIFICATIONS
1
Dual Supply
(VDD = +15 V 6 10%, VSS = –15 V 6 10%, VL = +5 V 6 10%, GND = 0 V, unless otherwise noted)
B Version T Version
–408C to –558C to
Parameter +258C +858C +258C +1258C Units Test Conditions/Comments
ANALOG SWITCH
Analog Signal Range V R
ON
25 25 typ VD = ±8.5 V, IS = –10 mA; 35 45 35 45 max VDD = +13.5 V, V
LEAKAGE CURRENTS V
Source OFF Leakage I
(OFF) ±0.1 ±0.1 nA typ VD = ±15.5 V, VS = 715.5 V;
S
DD
to V
SS
VDD to VSSV
= –13.5 V
SS
= +16.5 V, VSS = –16.5 V
DD
±0.25 ± 5 ±0.25 ±20 nA max Test Circuit 2
Drain OFF Leakage I
(OFF) ±0.1 ±0.1 nA typ VD = ±15.5 V, VS = 715.5 V;
D
±0.25 ± 5 ±0.25 ±20 nA max Test Circuit 2
Channel ON Leakage I
, IS (ON) ±0.1 ±0.1 nA typ VD = VS = ±15.5 V;
D
±0.4 ±10 ±0.4 ±40 nA max Test Circuit 3
DIGITAL INPUTS
Input High Voltage, V Input Low Voltage, V
INL
INH
2.4 2.4 V min
0.8 0.8 V max
Input Current
I
INL
or I
INH
0.005 0.005 µA typ VIN = V
INL
or V
INH
±0.5 ±0.5 µA max
DYNAMIC CHARACTERISTICS
t
ON
t
OFF
Break-Before-Make Time Delay, t
(ADG413 Only) V
2
110 110 ns typ RL = 300 , CL = 35 pF;
175 175 ns max V
= ±10 V; Test Circuit 4
S
100 100 ns typ RL = 300 , CL = 35 pF;
145 145 ns max V
25 25 ns typ RL = 300 , CL = 35 pF;
D
= ±10 V; Test Circuit 4
S
= VS2 = +10 V;
S1
Test Circuit 5
Charge Injection 5 5 pC typ V
= 0 V, RS = 0 , CL = 10 nF;
S
Test Circuit 6
OFF Isolation 68 68 dB typ R
= 50 , CL = 5 pF, f = 1 MHz;
L
Test Circuit 7
Channel-to-Channel Crosstalk 85 85 dB typ R
= 50 , CL = 5 pF, f = 1 MHz;
L
Test Circuit 8
(OFF) 9 9 pF typ f = 1 MHz
C
S
(OFF) 9 9 pF typ f = 1 MHz
C
D
CD, CS (ON) 35 35 pF typ f = 1 MHz
POWER REQUIREMENTS V
= +16.5 V, VSS = –16.5 V
DD
Digital Inputs = 0 V or 5 V
I
DD
0.0001 0.0001 µA typ 15 1 5 µA max
I
SS
0.0001 0.0001 µA typ 15 1 5 µA max
I
L
0.0001 0.0001 µA typ 15 1 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.
REV. A–2–
Page 3
ADG411/ADG412/ADG413
Single Supply
(VDD = +12 V 6 10%, VSS = 0 V, VL = +5 V 6 10%, GND = 0 V, unless otherwise noted)
B Version T Version
–408C to –558C to
Parameter +258C +858C +258C +1258C Units Test Conditions/Comments
ANALOG SIGNAL RANGE 0 V to V
R
ON
40 40 typ 0 < VD = 8.5 V, IS = –10 mA;
DD
0 V to VDDV
80 100 80 100 max VDD = +10.8 V
LEAKAGE CURRENTS V
Source OFF Leakage I
(OFF) ±0.1 ±0.1 nA typ VD = 12.2/1 V, VS = 1/12.2 V;
S
= +13.2 V
DD
±0.25 ± 5 ±0.25 ±20 nA max Test Circuit 2
Drain OFF Leakage I
(OFF) ±0.1 ±0.1 nA typ VD = 12.2/1 V, VS = 1/12.2 V;
D
±0.25 ± 5 ±0.25 ±20 nA max Test Circuit 2
Channel ON Leakage I
, IS (ON) ±0.1 ±0.1 nA typ VD = VS = +12.2 V/+1 V;
D
±0.4 ±10 ±0.4 ±40 nA max Test Circuit 3
DIGITAL INPUTS
Input High Voltage, V Input Low Voltage, V
INL
INH
2.4 2.4 V min
0.8 0.8 V max
Input Current
I
INL
or I
INH
0.005 0.005 µA typ VIN = V
INL
or V
INH
±0.5 ±0.5 µA max
DYNAMIC CHARACTERISTICS
t
ON
t
OFF
Break-Before-Make Time Delay, t
(ADG413 Only) V
2
175 175 ns typ RL = 300 , CL = 35 pF;
250 250 ns max V
= +8 V; Test Circuit 4
S
95 95 ns typ RL = 300 , CL = 35 pF;
125 125 ns max V
25 25 ns typ RL = 300 , CL = 35 pF;
D
= +8 V; Test Circuit 4
S
= VS2 = +10 V;
S1
Test Circuit 5
Charge Injection 25 25 pC typ V
= 0 V, RS = 0 , CL = 10 nF;
S
Test Circuit 6
OFF Isolation 68 68 dB typ R
= 50 , CL = 5 pF, f = 1 MHz;
L
Test Circuit 7
Channel-to-Channel Crosstalk 85 85 dB typ R
= 50 , CL = 5 pF, f = 1 MHz;
L
Test Circuit 8
(OFF) 9 9 pF typ f = 1 MHz
C
S
(OFF) 9 9 pF typ f = 1 MHz
C
D
CD, CS (ON) 35 35 pF typ f = 1 MHz
POWER REQUIREMENTS V
= +13.2 V
DD
Digital Inputs = 0 V or 5 V
I
DD
0.0001 0.0001 µA typ 15 1 5 µA max
I
L
0.0001 0.0001 µA typ 15 1 5 µA max VL = +5.25 V
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.
Truth Table (ADG411/ADG412)
ADG411 In ADG412 In Switch Condition
01ON 1 0 OFF
REV. A
Truth Table (ADG413)
Logic Switch 1, 4 Switch 2, 3
0 OFF ON 1 ON OFF
–3–
Page 4
ADG411/ADG412/ADG413
TOP VIEW
(Not to Scale)
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
IN1
D1 S1
V
SS
GND
S4 D4
IN4
IN2 D2 S2 V
DD
V
L
S3 D3 IN3
ADG411 ADG412 ADG413

ABSOLUTE MAXIMUM RATINGS

(TA = +25°C unless otherwise noted)
VDD to VSS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+44 V
to GND . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +25 V
V
DD
to GND . . . . . . . . . . . . . . . . . . . . . . . . . . .+0.3 V to –25 V
V
SS
to GND . . . . . . . . . . . . . . . . . . . . . . –0.3 V to VDD + 0.3 V
V
L
Analog, Digital Inputs
2
. . . . . . . . . . . VSS –2 V to VDD +2 V or
Continuous Current, S or D . . . . . . . . . . . . . . . . . . . . . 30 mA
Peak Current, S or D . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mA
(Pulsed at 1 ms, 10% Duty Cycle max) Operating Temperature Range
Industrial (B Version) . . . . . . . . . . . . . . . . . –40°C to +85°C
Extended (T Version) . . . . . . . . . . . . . . . . –55°C to +125°C
Storage Temperature Range . . . . . . . . . . . . . –65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . +150°C
Cerdip Package, Power Dissipation . . . . . . . . . . . . . . .900 mW
Thermal Impedance . . . . . . . . . . . . . . . . . . . . . . 76°C/W
θ
JA
Lead Temperature, Soldering (10 sec) . . . . . . . . . . . +300°C
Plastic Package, Power Dissipation . . . . . . . . . . . . . . . 470 mW
Thermal Impedance . . . . . . . . . . . . . . . . . . . . . 117°C/W
θ
JA
Lead Temperature, Soldering (10 sec) . . . . . . . . . . . +260°C
SOIC Package, Power Dissipation . . . . . . . . . . . . . . . .600 mW
Thermal Impedance . . . . . . . . . . . . . . . . . . . . . . 77°C/W
θ
JA
TSSOP Package, Power Dissipation . . . . . . . . . . . . . .450 mW
Thermal Impedance . . . . . . . . . . . . . . . . . . . . . 115°C/W
θ
JA
Thermal Impedance . . . . . . . . . . . . . . . . . . . . . . 35°C/W
θ
JC
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . +215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . +220°C
NOTES
1
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 Range Package Option
ADG411BN –40°C to +85° C N-16 ADG411BR –40°C to +85°C R-16A ADG411TQ –55°C to +125°C Q-16 ADG411BRU –40°C to +85°C RU-16 ADG412BN –40 °C to +85°C N-16 ADG412BR –40°C to +85°C R-16A ADG412TQ –55°C to +125°C Q-16 ADG413BN –40 °C to +85°C N-16 ADG413BR –40°C to +85°C R-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). GND Ground (0 V) reference. S Source terminal. May be an input or output. D Drain terminal. May be an input or output. IN Logic 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. Crosstalk A measure of unwanted signal which is coupled
through from one channel to another as a result
of parasitic capacitance. Off Isolation A measure of unwanted signal coupling
through an “OFF” switch. Charge A measure of the glitch impulse transferred
Injection from 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
10 15 20
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
0.001 100 10M1k
ID (ON)
01020
IS (OFF)
I
(OFF)
D
10k 100k 1M
FREQUENCY – Hz
10M
100nA
10
1k 10k 100k 1M
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
100 10M1k
10k 100k 1M
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
100 10M1k
10k 100k 1M
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

0.1mF 0.1mF
V
S
0.1mF 0.1mF
V
S1
V
S2
S1 D1
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
0.1mF 0.1mF
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)
SEATING
PLANE
0.1mF 0.1mF
V
IN1
R
L
50V
0.3937 (10.00)
0.3859 (9.80)
16 9
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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