ADA4420-6ARUZ [ADI]

Low Cost 6-Channel HD/SD Video Filter;
ADA4420-6ARUZ
型号: ADA4420-6ARUZ
厂家: ADI    ADI
描述:

Low Cost 6-Channel HD/SD Video Filter

光电二极管 商用集成电路
文件: 总16页 (文件大小:247K)
中文:  中文翻译
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Low Cost 6-Channel HD/SD Video Filter  
ADA4420-6  
FUNCTIONAL BLOCK DIAGRAM  
FEATURES  
Sixth-order filters  
INSD1  
INSD2  
INSD3  
OUTSD1  
OUTSD2  
OUTSD3  
×1  
×1  
×1  
×1  
×1  
×1  
×2  
×2  
×2  
×2  
×2  
×2  
SD  
SD  
SD  
HD  
HD  
HD  
Transparent input sync tip clamp  
−1 dB bandwidth of 26 MHz typical for HD  
HD rejection @ 75 MHz: 48 dB typical  
NTSC differential gain: 0.19%  
NTSC differential phase: 0.76°  
Rail-to-rail outputs  
Low quiescent current: 32 mA typical  
Disable feature  
Output dc offset  
CLAMP  
CLAMP  
CLAMP  
CLAMP  
CLAMP  
CLAMP  
DIS  
INHD1  
OUTHD1  
OUTHD2  
OUTHD3  
APPLICATIONS  
Set-top boxes  
DVD players and recorders  
HDTVs  
Projectors  
Personal video recorders  
INHD2  
INHD3  
ADA4420-6  
Figure 1.  
GENERAL DESCRIPTION  
The ADA4420-6 is a low cost video reconstruction filter specifically  
designed for consumer applications. It consists of six independent  
sixth-order Butterworth filters/buffers, three for standard  
definition (Y/C or CVBS) and three for high definition  
component signals (YPrPb or RGB).  
Each channel features a transparent sync tip clamp, allowing ac  
coupling of the inputs without requiring dc restoration.  
The output drivers on the ADA4420-6 have rail-to-rail output  
capabilities with 6 dB gain. A built-in offset of 250 mV allows  
the outputs to be dc-coupled, eliminating the need for large  
coupling capacitors. Each output is capable of driving two 75 Ω  
doubly terminated cables.  
The ADA4420-6 operates from a single 5 V supply and has a  
low quiescent current of 32 mA, making it ideal for applications  
where power consumption is critical. A disable feature allows  
for further power conservation by reducing the supply current  
to less than 8 μA typical when the device is not in use.  
The ADA4420-6 is available in either a 16-lead QSOP or a 20-lead  
TSSOP, and operates in the extended industrial temperature  
range of −40°C to +85°C.  
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 that may result from its use. Specifications subject to change without notice. No  
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.  
Trademarks and registeredtrademarks arethe property of their respective owners.  
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 ©2008–2011 Analog Devices, Inc. All rights reserved.  
 
 
 
ADA4420-6  
TABLE OF CONTENTS  
Features .............................................................................................. 1  
Typical Performance Characteristics ..............................................7  
Test Circuits..................................................................................... 10  
Applications Information.............................................................. 11  
Overview ..................................................................................... 11  
Disable ......................................................................................... 11  
Input and Output Coupling...................................................... 11  
Printed Circuit Board (PCB) Layout ....................................... 11  
Video Encoder Reconstruction Filter...................................... 11  
Outline Dimensions....................................................................... 13  
Ordering Guide .......................................................................... 14  
Applications....................................................................................... 1  
General Description......................................................................... 1  
Functional Block Diagram .............................................................. 1  
Revision History ............................................................................... 2  
Specifications..................................................................................... 3  
Absolute Maximum Ratings............................................................ 4  
Thermal Resistance ...................................................................... 4  
Maximum Power Dissipation ..................................................... 4  
ESD Caution.................................................................................. 4  
Pin Configuration and Function Descriptions............................. 5  
REVISION HISTORY  
5/11—Rev. 0 to Rev. A  
Added 20-Lead TSSOP Package.......................................Universal  
Changes to General Description Section ...................................... 1  
Changes to Disable Assert Voltage, Disable Assert Time, Disable  
De-Assert Time Parameters ............................................................ 3  
Changes to Table 3, Maximum Power Dissipation Section,  
and Figure 2....................................................................................... 4  
Added Figure 4 and Table 5............................................................. 6  
Changes to Figure 18, Figure 19, and Figure 20 ......................... 10  
Updated Outline Dimensions....................................................... 13  
Changes to Ordering Guide .......................................................... 14  
8/08—Revision 0: Initial Version  
Rev. A | Page 2 of 16  
ADA4420-6  
SPECIFICATIONS  
VS = 5 V, TA = 25°C, VO = 2.0 V p-p, RL = 150 Ω, dc-coupled inputs, ac-coupled outputs, unless otherwise noted. See Figure 18, Figure 19,  
and Figure 20 for the test circuits.  
Table 1.  
Parameter  
Test Conditions/Comments  
Min Typ  
Max Unit  
OVERALL PERFORMANCE  
DC Voltage Gain  
All channels  
5.8  
6.0  
0 to 2.1  
0.25 to 4.6  
30  
1
6.2  
dB  
V
V
mA  
μA  
Input Voltage Range, All Inputs  
Output Voltage Range, All Outputs  
Linear Output Current per Channel  
Filter Input Bias Current  
SD CHANNEL DYNAMIC PERFORMANCE  
−1 dB Bandwidth  
−3 dB Bandwidth  
Out-of-Band Rejection  
Crosstalk  
8.6  
10  
45  
−68  
0.02  
70  
MHz  
MHz  
dB  
dB  
%
8.5  
42  
f = 27 MHz  
f = 1 MHz  
Total Harmonic Distortion  
Signal-to-Noise Ratio  
Propagation Delay  
f = 1 MHz, VO = 1.4 V p-p, dc-coupled outputs  
f = 100 kHz to 6 MHz, unweighted  
dB  
ns  
57  
Group Delay Variation  
Differential Gain  
f = 100 kHz to 5 MHz  
NTSC; ac-coupled inputs, dc-coupled outputs;  
see Figure 19  
16  
0.19  
ns  
%
Differential Phase  
NTSC; ac-coupled inputs, dc-coupled outputs;  
see Figure 19  
0.76  
Degrees  
HD CHANNEL DYNAMIC PERFORMANCE  
−1 dB Bandwidth  
−3 dB Bandwidth  
Out-of-Band Rejection  
Crosstalk  
Total Harmonic Distortion  
Signal-to-Noise Ratio  
Propagation Delay  
26  
31  
48  
−68  
0.57  
66  
MHz  
MHz  
dB  
dB  
%
27  
43  
f = 75 MHz  
f = 1 MHz  
f = 10 MHz, VO = 1.4 V p-p, dc-coupled outputs  
f = 100 kHz to 30 MHz, unweighted  
dB  
ns  
15  
Group Delay Variation  
DC CHARACTERISTICS  
Operating Voltage  
f = 100 kHz to 30 MHz  
11  
ns  
4.75 to 5.25  
V
Quiescent Supply Current  
Active, DIS = 1  
32  
7
36  
13  
mA  
μA  
dB  
dB  
mV  
V
Disabled, DIS = 0  
HD channel, referred to output  
SD channel, referred to output  
All channels  
PSRR  
35  
40  
135  
41  
45  
250  
Output DC Offset  
Disable Assert Voltage  
Disable Assert Time  
375  
1.9  
DIS = 0 to 1  
DIS = 0 to 1  
20  
ns  
Disable De-Assert Time  
Disable Input Bias Current  
Input-to-Output Isolation  
DIS = 1 to 0  
450  
−6.8  
−96  
ns  
Disabled, DIS = 0  
Disabled, DIS = 0, f = 5 MHz  
μA  
dB  
Rev. A | Page 3 of 16  
 
ADA4420-6  
ABSOLUTE MAXIMUM RATINGS  
The power dissipated in the package (PD) is the sum of the  
quiescent power dissipation and the power dissipated in the  
package due to the load drive for all outputs. The quiescent  
power is the voltage between the supply pins (VS) times the  
quiescent current (IS). The power dissipated due to load drive  
depends on the particular application. For each output, the  
power due to load drive is calculated by multiplying the load  
current by the associated voltage drop across the device. The  
power dissipated due to the loads is equal to the sum of the  
power dissipations due to each individual load. RMS voltages  
and currents must be used in these calculations.  
Table 2.  
Parameter  
Rating  
Supply Voltage  
Power Dissipation  
Storage Temperature Range  
Operating Temperature Range  
Lead Temperature (Soldering, 10 sec)  
Junction Temperature  
5.5 V  
See Figure 2  
−65°C to +125°C  
−40°C to +85°C  
300°C  
150°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 indicated in the operational  
section of this specification is not implied. Exposure to absolute  
maximum rating conditions for extended periods may affect  
device reliability.  
Airflow increases heat dissipation, effectively reducing θJA.  
Figure 2 shows the maximum power dissipation in the package  
vs. the ambient temperature for the 16-lead QSOP (105°C/W)  
and the 20-lead TSSOP (143°C/W) on a JEDEC standard 4-layer  
board. θJA values are approximate.  
2.0  
THERMAL RESISTANCE  
1.8  
1.6  
1.4  
θJA is specified for the device soldered to a high thermal  
conductivity 4-layer (2s2p) circuit board, as described in  
EIA/JESD 51-7.  
16-LEAD QSOP  
1.2  
Table 3.  
1.0  
Package Type  
16-Lead QSOP  
20-Lead TSSOP  
θJA  
θJC  
23  
45  
Unit  
°C/W  
°C/W  
0.8  
20-LEAD TSSOP  
105  
143  
0.6  
0.4  
0.2  
0
MAXIMUM POWER DISSIPATION  
The maximum safe power dissipation in the ADA4420-6  
package is limited by the associated rise in junction temperature  
(TJ) on the die. At approximately 150°C, which is the glass  
transition temperature, the plastic changes its properties. Even  
temporarily exceeding this temperature limit can change the  
stresses that the package exerts on the die, permanently shifting  
the parametric performance of the ADA4420-6. Exceeding a  
junction temperature of 150°C for an extended time can result  
in changes in the silicon devices, potentially causing failure.  
0
10  
20  
30  
40  
50  
60  
70  
80  
90  
100  
AMBIENT TEMPERATURE (°C)  
Figure 2. Maximum Power Dissipation vs.  
Ambient Temperature for a 4-Layer Board  
ESD CAUTION  
Rev. A | Page 4 of 16  
 
 
 
 
 
ADA4420-6  
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
INSD1  
INSD2  
INSD3  
VCC  
OUTSD1  
OUTSD2  
OUTSD3  
GND  
ADA4420-6  
TOP VIEW  
DIS  
GND  
(Not to Scale)  
INHD1  
INHD2  
INHD3  
OUTHD1  
OUTHD2  
OUTHD3  
Figure 3. 16-Lead QSOP Pin Configuration  
Table 4. 16-Pin QSOP Pin Function Descriptions  
Pin No.  
Mnemonic  
Description  
1
2
3
4
INSD1  
INSD2  
INSD3  
VCC  
Standard Definition Input 1  
Standard Definition Input 2  
Standard Definition Input 3  
Power Supply  
5
DIS  
Disable/Power-Down Input  
High Definition Input 1  
High Definition Input 2  
High Definition Input 3  
High Definition Output 3  
High Definition Output 2  
High Definition Output 1  
Ground  
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
INHD1  
INHD2  
INHD3  
OUTHD3  
OUTHD2  
OUTHD1  
GND  
GND  
Ground  
OUTSD3  
OUTSD2  
OUTSD1  
Standard Definition Output 3  
Standard Definition Output 2  
Standard Definition Output 1  
Rev. A | Page 5 of 16  
 
ADA4420-6  
1
2
20  
19  
18  
17  
INSD1  
INSD2  
INSD3  
NC  
OUTSD1  
OUTSD2  
OUTSD3  
GND  
3
4
5
ADA4420-6 16  
TOP VIEW  
(Not to Scale)  
VCC  
GND  
6
15  
DIS  
NC  
7
14  
13  
12  
11  
INHD1  
INHD2  
INHD3  
NC  
OUTHD1  
OUTHD2  
OUTHD3  
NC  
8
9
10  
NC = NO CONNECT.  
DO NOT CONNECT TO THIS PIN.  
Figure 4. 20-Lead TSSOP Pin Configuration  
Table 5. 20-lead TSSOP Pin Function Descriptions  
Pin No.  
Mnemonic  
INSD1  
INSD2  
INSD3  
NC  
Description  
1
2
3
4
Standard Definition Input 1.  
Standard Definition Input 2.  
Standard Definition Input 3.  
Do not connect to this pin.  
Power Supply.  
5
VCC  
6
DIS  
Disable/Power Down Input.  
High Definition Input 1.  
High Definition Input 2.  
High Definition Input 3.  
Do not connect to this pin.  
Do not connect to this pin.  
High Definition Output 3.  
High Definition Output 2.  
High Definition Output 1.  
No Connection.  
Ground.  
Ground.  
Standard Definition Output 3.  
Standard Definition Output 2.  
Standard Definition Output 1.  
7
8
9
INHD1  
INHD2  
INHD3  
NC  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
NC  
OUTHD3  
OUTHD2  
OUTHD1  
NC  
GND  
GND  
OUTSD3  
OUTSD2  
OUTSD1  
Rev. A | Page 6 of 16  
ADA4420-6  
TYPICAL PERFORMANCE CHARACTERISTICS  
VS = 5 V, TA = 25°C, VO = 2.0 V p-p, RL = 150 Ω, dc-coupled inputs, ac-coupled outputs, unless otherwise noted. See Figure 18, Figure 19,  
and Figure 20 for the test circuits.  
10  
1.0  
HD CHANNELS,  
L
SD CHANNELS,  
R
= 75  
R
= 75  
L
0
HD CHANNELS,  
L
0.5  
R
= 75Ω  
HD CHANNELS,  
R
= 150Ω  
L
–10  
–20  
–30  
–40  
–50  
–60  
–70  
–80  
0
HD CHANNELS,  
L
SD CHANNELS,  
SD CHANNELS,  
L
R
= 150Ω  
R
= 75Ω  
–0.5  
–1.0  
–1.5  
–2.0  
–2.5  
–3.0  
L
R
= 150Ω  
SD CHANNELS,  
L
R
= 150Ω  
1
1
1
10  
100  
1
10  
100  
FREQUENCY (MHz)  
FREQUENCY (MHz)  
Figure 5. Frequency Response vs. Load (RL)  
Figure 8. Flatness vs. Load (RL)  
10  
0
1.0  
0.5  
–10  
–20  
–30  
–40  
–50  
–60  
–70  
–80  
0
–0.5  
–1.0  
–1.5  
–2.0  
–2.5  
–3.0  
HD –40°C  
HD +25°C  
HD +85°C  
SD –40°C  
SD +25°C  
SD +85°C  
HD –40°C  
HD +25°C  
HD +85°C  
SD –40°C  
SD +25°C  
SD +85°C  
10  
100  
1
10  
100  
FREQUENCY (MHz)  
FREQUENCY (MHz)  
Figure 6. Frequency Response vs. Temperature  
Figure 9. Flatness vs. Temperature  
10  
0
10  
0
HD DC-COUPLED  
–10  
–20  
–30  
–40  
–50  
–60  
–70  
–80  
–10  
–20  
–30  
–40  
–50  
–60  
–70  
–80  
HD AC-COUPLED  
SD V = 100mV p-p  
SD V = 2.0V p-p  
HD V = 100mV p-p  
HD V = 2.0V p-p  
O
SD AC-COUPLED  
SD DC-COUPLED  
O
O
O
1
10  
FREQUENCY (MHz)  
100  
10  
100  
FREQUENCY (MHz)  
Figure 10. Frequency Response vs. Output Coupling  
Figure 7. Frequency Response vs. Amplitude  
Rev. A | Page 7 of 16  
 
 
ADA4420-6  
6
5
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
SD CHANNELS  
4
3
SD CHANNELS  
HD CHANNELS  
2
HD CHANNELS  
1
0
–1  
0
0.1  
–600 –400 –200  
0
200  
400  
600  
800 1000 1200  
1
10  
FREQUENCY (MHz)  
100  
TIME (ns)  
Figure 13. Enable Time  
Figure 11. Group Delay vs. Frequency  
36  
35  
34  
33  
32  
31  
30  
29  
28  
10k  
1k  
DIS = 0  
100  
10  
0.1  
–60  
–40  
–20  
0
20  
40  
60  
80  
100  
1
10  
100  
TEMPERATURE (°C)  
FREQUENCY (MHz)  
Figure 14. Supply Current vs. Temperature  
Figure 12. Output Impedance vs. Frequency  
Rev. A | Page 8 of 16  
ADA4420-6  
4.70  
4.68  
4.66  
4.64  
4.62  
4.60  
4.58  
4.56  
4.54  
4.52  
4.50  
0
–10  
–20  
–30  
–40  
–50  
–60  
–70  
–80  
–90  
SD CHANNELS  
HD CHANNELS  
–60  
–40  
–20  
0
20  
40  
60  
80  
100  
0.1  
1
10  
100  
1000  
TEMPERATURE (°C)  
FREQUENCY (MHz)  
Figure 17. Output Saturation Voltage vs. Temperature  
Figure 15. Crosstalk vs. Frequency  
6
5
SD CHANNELS  
4
3
2
HD CHANNELS  
1
0
–1  
–200 –160 –120 –80 –40  
0
40  
80  
120 160 200  
TIME (ns)  
Figure 16. Disable Time  
Rev. A | Page 9 of 16  
ADA4420-6  
TEST CIRCUITS  
AGILENT E3631A POWER SUPPLY  
±25V  
COM  
+6V  
+
+
ADA4420-6  
TEST CIRCUIT  
(SEE FIGURE 18)  
VCC  
GND  
DIS  
VCC  
INxDx  
OUTxDx  
PORT 2  
0.1µF  
10µF  
50  
V
IN  
PORT 1  
220µF  
49.9  
V
ADA4420-6  
OUT  
BIAS  
CONNECT  
PORT 1  
118Ω  
86.6Ω  
AGILENT 8753D VECTOR NETWORK ANALYZER  
GND  
DIS  
Figure 18. DC-Coupled Input, AC-Coupled Output  
Figure 20. Test Circuit for Frequency Response and Group Delay  
VCC  
0.1µF  
10µF  
V
IN  
0.1µF  
49.9  
V
ADA4420-6  
OUT  
118Ω  
86.6Ω  
GND  
DIS  
Figure 19. AC-Coupled Input, DC-Coupled Output  
Rev. A | Page 10 of 16  
 
 
 
ADA4420-6  
APPLICATIONS INFORMATION  
75  
OVERVIEW  
CABLE  
220µF  
220µF  
75Ω  
75Ω  
ADA4420-6  
With its high impedance inputs and high output drive, the  
ADA4420-6 is ideally suited to video reconstruction and anti-  
alias filtering applications. The high impedance inputs give  
designers flexibility with regard to how the input signals are  
terminated. Devices with DAC current source outputs that feed  
the ADA4420-6 can be loaded in whatever resistance provides  
the best performance, and devices with voltage outputs can be  
optimally terminated as well. The ADA4420-6 outputs can each  
drive up to two source-terminated, 75 ꢀ loads and; therefore, can  
directly drive the outputs from set-top boxes and DVDs without  
the need for a separate output buffer.  
75Ω  
75Ω  
75Ω  
CABLE  
Figure 21. Driving Two AC-Coupled Loads with Two Coupling Capacitors  
75  
CABLE  
75Ω  
ADA4420-6  
470µF  
75Ω  
75Ω  
CABLE  
75Ω  
DISABLE  
75Ω  
The ADA4420-6 includes a disable feature that can be used to  
save power when a particular device is not in use. When disabled,  
the ADA4420-6 typically draws only 7 μA from the supply. The  
Figure 22. Driving Two AC-Coupled Loads with One Common Coupling Capacitor  
PRINTED CIRCUIT BOARD (PCB) LAYOUT  
disable feature is asserted by pulling the  
pin low.  
DIS  
As with all high speed applications, attention to the PCB layout  
is of paramount importance. When designing with the ADA4420-6,  
adhere to standard high speed layout practices. A solid ground  
plane is recommended, and surface-mount, ceramic power supply  
decoupling capacitors should be placed as close as possible to the  
supply pins. Connect all of the ADA4420-6 GND pins to the  
ground plane with traces that are as short as possible. Controlled  
impedance traces of the shortest length possible should be used  
to connect to the signal I/O pins and should not pass over any  
voids in the ground plane. A 75 Ω impedance level is typically  
used in video applications. When driving transmission lines,  
include series termination resistors on the signal outputs of the  
ADA4420-6.  
Table 6 summarizes the operation of the disable feature.  
Table 6. Disable Function  
DIS Pin Connection  
Status  
VCC or Floating  
GND  
Enabled  
Disabled  
INPUT AND OUTPUT COUPLING  
Inputs to the ADA4420-6 can be ac- or dc-coupled. For dc-coupled  
inputs, the signal must be completely contained within the input  
range of 0 V to 2.1 V. When using ac-coupled inputs, the lowest  
point of the signal is clamped to approximately 0 V. The ADA4420-6  
outputs can be either ac- or dc-coupled.  
When the ADA4420-6 receives its inputs from a device with  
current outputs, the required load resistor value for the output  
current is often different from the characteristic impedance of  
the signal traces. In this case, if the interconnections are short  
(<< 0.1 wavelength), the trace does not have to be terminated in  
its characteristic impedance. Traces of 75 Ω can be used in this  
instance, provided their lengths are an inch or two at most. This  
is easily achieved because the ADA4420-6 and the device feeding it  
are usually adjacent to each other, and connections can be made  
that are less than one inch in length.  
When driving single ac-coupled loads in standard 75 Ω video  
distribution systems, a minimum capacitance of 220 μF is  
recommended to avoid line and field droop. There are two ac  
coupling options when driving two loads from one output. One  
option simply uses the same value capacitor on the second load,  
while the other option uses a common coupling capacitor that  
is at least twice the value used for the single load (see Figure 21  
and Figure 22).  
When driving two parallel 150 Ω loads (75 Ω effective load), the  
3 dB bandwidth of the filters typically varies from that of the filters  
with a single 150 Ω load (see Figure 5).  
VIDEO ENCODER RECONSTRUCTION FILTER  
The ADA4420-6 is easily applied as a reconstruction filter at the  
DAC outputs of a video encoder. Figure 23 illustrates how to use  
the ADA4420-6 in this type of application following an ADV734x  
series video encoder, with a single-supply and ac-coupled outputs.  
Rev. A | Page 11 of 16  
 
 
 
 
 
 
 
 
ADA4420-6  
220μF  
220μF  
220μF  
ADV734x  
75Ω  
75Ω  
75Ω  
OUTHD1  
OUTHD2  
OUTHD3  
INHD1  
INHD2  
INHD3  
MULTIFORMAT  
Y
×1  
×1  
×1  
HD  
HD  
×2  
×2  
×2  
DAC 1  
DAC 2  
DAC 3  
VIDEO ENCODER  
300Ω  
300Ω  
300Ω  
Pb  
Pr  
HD  
ADA4420-6  
SD  
DIS  
220μF  
220μF  
220μF  
75Ω  
75Ω  
75Ω  
INSD1  
INSD2  
INSD3  
OUTSD1  
OUTSD2  
OUTSD3  
CVBS  
×1  
×1  
×1  
×2  
×2  
×2  
DAC 4  
DAC 5  
DAC 6  
300Ω  
300Ω  
300Ω  
SD  
SD  
S-VIDEO  
R
R
SET2  
SET1  
4.12kΩ  
4.12kΩ  
Figure 23. The ADA4420-6 Applied as a Reconstruction Filter Following an ADV734x Series Video Encoder  
Rev. A | Page 12 of 16  
 
ADA4420-6  
OUTLINE DIMENSIONS  
0.197 (5.00)  
0.193 (4.90)  
0.189 (4.80)  
16  
1
9
8
0.158 (4.01)  
0.154 (3.91)  
0.150 (3.81)  
0.244 (6.20)  
0.236 (5.99)  
0.228 (5.79)  
0.010 (0.25)  
0.006 (0.15)  
0.020 (0.51)  
0.010 (0.25)  
0.069 (1.75)  
0.053 (1.35)  
0.065 (1.65)  
0.049 (1.25)  
0.010 (0.25)  
0.004 (0.10)  
0.041 (1.04)  
REF  
SEATING  
PLANE  
8°  
0°  
0.025 (0.64)  
BSC  
0.050 (1.27)  
0.016 (0.41)  
COPLANARITY  
0.004 (0.10)  
0.012 (0.30)  
0.008 (0.20)  
COMPLIANT TO JEDEC STANDARDS MO-137-AB  
CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETER DIMENSIONS  
(IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR  
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN.  
Figure 24. 16-Lead Shrink Small Outline Package [QSOP]  
(RQ-16)  
Dimensions shown in inches and (millimeters)  
6.60  
6.50  
6.40  
20  
11  
10  
4.50  
4.40  
4.30  
6.40 BSC  
1
PIN 1  
0.65  
BSC  
1.20 MAX  
0.15  
0.05  
0.20  
0.09  
0.75  
0.60  
0.45  
8°  
0°  
0.30  
0.19  
COPLANARITY  
0.10  
SEATING  
PLANE  
COMPLIANT TO JEDEC STANDARDS MO-153-AC  
Figure 25. 20-Lead Thin Shrink Small Outline Package [TSSOP]  
(RU-20)  
Dimensions shown in millimeters  
Rev. A | Page 13 of 16  
 
ADA4420-6  
ORDERING GUIDE  
Temperature  
Range  
Model1  
Package Description  
Package Option Ordering Quantity  
ADA4420-6ARQZ  
ADA4420-6ARQZ-R7  
ADA4420-6ARQZ-RL  
ADA4420-6ARUZ  
ADA4420-6ARUZ-R7  
ADA4420-6ARUZ-RL  
−40°C to +85°C  
−40°C to +85°C  
−40°C to +85°C  
−40°C to +85°C  
−40°C to +85°C  
−40°C to +85°C  
16-Lead Shrink Small Outline Package (QSOP)  
16-Lead Shrink Small Outline Package (QSOP)  
16-Lead Shrink Small Outline Package (QSOP)  
20-Lead Thin Shrink Small Outline Package (TSSOP) RU-20  
20-Lead Thin Shrink Small Outline Package (TSSOP) RU-20  
20-Lead Thin Shrink Small Outline Package (TSSOP) RU-20  
RQ-16  
RQ-16  
RQ-16  
Tube (98)  
1,000  
2,500  
Tube (75)  
1,000  
2,500  
1 Z = RoHS Compliant Part.  
Rev. A | Page 14 of 16  
 
ADA4420-6  
NOTES  
Rev. A | Page 15 of 16  
ADA4420-6  
NOTES  
©2008–2011 Analog Devices, Inc. All rights reserved. Trademarks and  
registered trademarks are the property of their respective owners.  
D07532-0-5/11(A)  
Rev. A | Page 16 of 16  

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