ANALOG DEVICES AD8186, AD8187 Service Manual
480 MHz Single-Supply (5 V)
TIME (ns)
OUTPUT VOLTAGE (V)
05
10
6.0
5.5
INPUT VOLTAGE (V)
2.5
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
3.0
–0.5
–1.0
3.5
4.0
2.0
1.5
1.0
INPUT
OUTPUT
15 20
5.0
25
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a
FEATURES
Fully Buffered Inputs and Outputs
Fast Channel-to-Channel Switching: 4 ns
Single-Supply Operation (5 V)
High Speed:
480 MHz Bandwidth (–3 dB) 2 V p-p
>1600 V/s (G = +1)
>1500 V/s (G = +2)
Fast Settling Time of 7 ns to 0.1%
Low Current: 19 mA/20 mA
Excellent Video Specifications (R
0.05% Differential Gain Error
0.05 Differential Phase Error
Low Glitch
All Hostile Crosstalk
–84 dB @ 5 MHz
–52 dB @ 100 MHz
High Off Isolation of –95 dB @ 5 MHz
Low Cost
Fast, High Impedance Disable Feature for Connecting
Multiple Outputs
Logic-Shifted Outputs
APPLICATIONS
Switching RGB in LCD and Plasma Displays
RGB Video Switchers and Routers
= 150 )
L
Triple 2:1 Multiplexers
AD8186/AD8187
FUNCTIONAL BLOCK DIAGRAM
1
IN0A
D
IN1A
V
IN2A
IN2B
IN1B
IN0B
GND
REF
V
V
V
V
2
3
4
5
6
CC
7
EE
8
9
EE
10
11
EE
12
AD8186/AD8187
SELECT
LOGIC
ENABLE
0
1
2
Table I. Truth Table
SEL A/B OE OUT
00High Z
10High Z
11IN A
01IN B
24
23
22
21
20
19
18
17
16
15
14
13
V
CC
OE
SEL A/B
V
CC
OUT 0
V
EE
OUT 1
V
CC
OUT 2
V
EE
DV
CC
V
CC
GENERAL DESCRIPTION
The AD8186 (G = +1) and AD8187 (G = +2) are high speed,
single-supply, triple 2-to-1 multiplexers. They offer –3 dB large signal
bandwidth of over 480 MHz along with a slew rate in excess of
1500 V/µs. With better than –80 dB of all hostile crosstalk and
–95 dB OFF isolation, they are suited for many high speed applica
tions. The differential gain and differential phase error of 0.05%
and 0.05°, along with 0.1 dB flatness to 85 MHz, make the
AD8186 and AD8187 ideal for professional and component video
multiplexing. They offer 4 ns switching time, making
them an
excellent choice for switching video signals while consuming less
than 20 mA on a single 5 V supply (100 mW
high speed disable feature that sets
). Both devices have a
the outputs into a high
impedance state. This allows the building of larger input arrays
while minimizing OFF channel output loading. The devices are
offered in a 24-lead TSSOP package.
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. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective companies.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 www.analog.com
Fax: 781/326-8703 © 2003 Analog Devices, Inc. All rights reserved.
Figure 1. AD8187 Video Amplitude Pulse
Response, V
OUT
= 1.4 V p-p, RL = 150
Ω
(TA = 25C; AD8186: VS = 5 V, RL = 1 k to 2.5 V; AD8187: VS = 5 V,
www.BDTIC.com/ADI
AD8186/AD8187–SPECIFICATIONS
V
= 2.5 V, RL = 150 to 2.5 V; unless otherwise noted.)
REF
AD8186/AD8187
Parameter Conditions Min Typ Max Unit
DYNAMIC PERFORMANCE
–3 dB Bandwidth (Small Signal) V
–3 dB Bandwidth (Large Signal) V
0.1 dB Flatness V
Slew Rate (10% to 90% Rise Time) V
Settling Time to 0.1% V
= 200 mV p-p 1000/1000 MHz
OUT
= 2 V p-p 450/480 MHz
OUT
= 200 mV p-p 90/85 MHz
OUT
= 2 V p-p, RL = 150 Ω 1600/1500 V/s
OUT
= 1 V Step, RL = 150 Ω 6/7.5 ns
IN
NOISE/DISTORTION PERFORMANCE
Differential Gain 3.58 MHz, RL = 150 Ω 0.05/0.05 %
Differential Phase 3.58 MHz, R
= 150 Ω 0.05/0.05 Degrees
L
All Hostile Crosstalk 5 MHz –84/–78 dB
100 MHz –52/–48 dB
Channel-to-Channel Crosstalk, RTI 5 MHz –90/–85 dB
OFF Isolation 5 MHz –84/–95 dB
Voltage Noise, RTI f = 100 kHz to 100 MHz 7/9 nV/√Hz
DC PERFORMANCE
Voltage Gain Error No Load 0.1/0.1 ⫾0.3/0.6 %
Voltage Gain Error Matching Channel A to Channel B 0.04/0.04 ⫾0.2/0.2 %
Gain Error 1 kΩ Load 0.04 ⫾0.6 %
V
REF
Input Offset Voltage 0.2/0.5 ⫾6.5/7.0 mV
to T
T
MIN
MAX
⫾8.0 mV
Input Offset Voltage Matching Channel A to Channel B 0.2/0.2 ⫾5.0/5.5 mV
Input Offset Drift 10/5 V/ºC
Input Bias Current 1.5/1.5 4/4 A
V
Bias Current (for AD8187 only) 1.0 A
REF
INPUT CHARACTERISTICS
Input Resistance @100 kHz 1.8/1.3 MΩ
Input Capacitance 0.9/1.0 pF
Input Voltage Range (About Midsupply) IN0A, IN0B, IN1A, IN1B,
IN2A, IN2B ⫾1.2/⫾1.2 V
V
REF
+0.9, –1.2 V
OUTPUT CHARACTERISTICS
Output Voltage Swing RL = 1 kΩ 3.1/2.8 3.2/3.0 V p-p
= 150 Ω 2.8/2.5 3.0/2.7 V p-p
R
L
Short Circuit Current 85 mA
Output Resistance Enabled @ 100 kHz 0.2/0.35 Ω
Disabled @ 100 kHz 1000/600 kΩ
Output Capacitance Disabled 1.5/2.0 pF
POWER SUPPLY
Operating Range 3.5 5.5 V
Power Supply Rejection Ratio +PSRR, V
= 0 V –72/–61 dB
V
EE
–PSRR, V
= 5.0 V –76/–72 dB
V
CC
= 4.5 V to 5.5 V,
CC
= –0.5 V to +0.5 V,
EE
Quiescent Current All Channels ON 18.5/19.5 21.5/22.5 mA
All Channels OFF 3.5/4.5 4.5/5.5 mA
T
MIN
to T
, All Channels ON 15 23 mA
MAX
REV. A–2–
AD8186/AD8187
www.BDTIC.com/ADI
AD8186/AD8187
Parameter Conditions Min Typ Max Unit
SWITCHING CHARACTERISTICS
Channel-to-Channel Switching Time 50% Logic to 50% Output
Settling, INA = +1 V, INB = –1 V 3.6/4 ns
ENABLE to Channel ON Time 50% Logic to 50% Output
Settling, INPUT = 1 V 4/3.8 ns
DISABLE to Channel OFF Time 50% Logic to 50% Output
Settling, INPUT = 1 V 17/5 ns
Channel Switching Transient (Glitch) All Channels Grounded 21/45 mV
Output Enable Transient (Glitch) All Channels Grounded 64/118 mV
DIGITAL INPUTS
Logic 1 Voltage SEL A/B, OE Inputs 1.6 V
Logic 0 Voltage SEL A/B, OE Inputs 0.6 V
Logic 1 Input Current SEL A/B, OE = 2.0 V 45 nA
Logic 0 Input Current SEL A/B, OE = 0.5 V 2 A
OPERATING TEMPERATURE RANGE
Temperature Range Operating (Still Air) –40 +85 ºC
JA
JC
Specifications subject to change without notice.
Operating (Still Air) 85 ºC/W
Operating 20 ºC/W
REV. A
–3–
AD8186/AD8187
IN0A
D
GND
V
REF
OUT 0
OUT 1
OUT 2
IN1A
IN2A
IN2B
IN1B
IN0B
V
CC
V
EE
V
EE
V
EE
V
CC
OE
SEL A/B
V
EE
V
CC
V
CC
V
CC
V
EE
DV
CC
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
AD8186/
AD8187
TOP VIEW
(Not to Scale)
www.BDTIC.com/ADI
ABSOLUTE MAXIMUM RATINGS
1, 2, 3, 4
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V
to D
DV
CC
DV
to VEE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.0 V
CC
to D
V
CC
IN0A, IN0B, IN1A, IN1B, IN2A, IN2B, V
SEL A/B, OE . . . . . . . . . . . . . . . . . . . . . . D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V
GND
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.0 V
GND
. . . VEE ≤ VIN ≤ V
REF
GND
≤ V
IN
≤ DV
CC
CC
Output Short Circuit Operation . . . . . . . . . . . . . . . Indefinite
Storage Temperature Range . . . . . . . . . . . . –65ºC to +150ºC
Lead Temperature Range (Soldering 10 sec) . . . . . . . . . 300ºC
NOTES
1
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 Theory of
Operation section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
2
Specification is for device in free air (TA = 25ºC).
3
24-lead TSSOP; TJA= 85ºC/W. Maximum internal power dissipation (PD) should be
derated for ambient temperature (TA) such that PD < (150ºC TA)/TJA.
4
TJA of 85⬚C/W is on a 4-layer board (2s 2p).
MAXIMUM POWER DISSIPATION
The maximum safe junction temperature for plastic encapsulated
devices is determined by the glass transition temperature of the
plastic, approximately 150ºC. Temporarily exceeding this limit
may cause a shift in parametric performance due to a change in
the stresses exerted on the die by the package. Exceeding a
junction temperature of 175ºC for an extended period can result
in device failure.
While the AD8186/AD8187 is internally short circuit protected,
this may not be sufficient to guarantee that the maximum junction
temperature (150ºC) is not exceeded under all conditions. To
ensure proper operation, it is necessary to observe the maximum
power derating curves shown in Figure 2.
2.5
2.0
1.5
1.0
0.5
MAXIMUM POWER DISSIPATION (W)
0
–50 –40
–30 –20 –10 0 10 20 30 40 50 60 70 80 90
AMBIENT TEMPERATURE (C)
Figure 2. Maximum Power Dissipation vs. Temperature
PIN CONFIGURATION
ORDERING GUIDE
Model Temperature Range Package Description Package Option
AD8186ARU –40ºC to +85ºC 24-Lead Thin Shrink Small Outline Package (TSSOP) RU-24
AD8186ARU-REEL –40ºC to +85ºC 13" Reel TSSOP RU-24
AD8186ARU-REEL 7
–40ºC to +85ºC 7" Reel TSSOP RU-24
AD8187ARU –40ºC to +85ºC 24-Lead Thin Shrink Small Outline Package (TSSOP) RU-24
AD8187ARU-REEL –40ºC to +85ºC 13" Reel TSSOP RU-24
AD8187ARU-REEL 7
–40ºC to +85ºC 7" Reel TSSOP RU-24
AD8186-EVAL Evaluation Board
AD8187-EVAL Evaluation Board
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
AD8186/AD8187 features proprietary ESD protection circuitry, permanent damage may occur on
recommended to avoid performance degradation or loss of functionality.
devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are
REV. A–4–
Typical Performance Characteristics–
FREQUENCY (MHz)
NORMALIZED GAIN (dB)
0.1 1.0 10.0 100.0 1000.0
1
0
–1
–2
–3
–4
–5
–6
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AD8186/AD8187
3
2
50
1
0
–1
–2
GAIN (dB)
–3
–4
–5
–6
0.1 1.0 10.0 100.0 1000.0
976
DUT
FREQUENCY (MHz)
52.3
GAIN
FLATNESS
TPC 1. AD8186 Frequency Response,
V
= 200 mV p-p, RL = 1 k
OUT
1
0
–1
–2
–3
–4
GAIN (dB)
–5
–6
–7
–8
150 976
50
0.1 1.0 10.0 100.0 1000.0
DUT
52.3
FREQUENCY (MHz)
Ω
10000.0
0.6
0.5
0.4
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
FLATNESS (dB)
1
0
–1
–2
–3
–4
NORMALIZED GAIN (dB)
–5
–6
0.1 1.0 10.0 100.0 1000.0
GAIN
FLATNESS
FREQUENCY (MHz)
TPC 4. AD8187 Frequency Response,
= 200 mV p-p, RL = 150
V
OUT
Ω
0
10000.0
0.5
0.4
0.3
0.2
0.1
NORMALIZED FLATNESS (dB)
–0.1
–0.2
TPC 2. AD8186 Frequency Response,
= 2 V p-p, RL = 1 k
V
OUT
1
0
–1
–2
–3
–4
NORMALIZED GAIN (dB)
–5
–6
150 976
50
0.1 1.0 10.0 100.0 1000.0
DUT
FREQUENCY (MHz)
Ω
+85C
+25C
–40C
52.3
TPC 3. AD8186 Large Signal Bandwidth vs.
Temperature, V
= 2 V p-p, RL = 1 k
OUT
Ω
TPC 5. AD8187 Frequency Response,
= 2 V p-p, RL = 150
V
OUT
1
0
–1
–2
–3
–4
NORMALIZED GAIN (dB)
–5
–6
0.1 1.0 10.0 100.0 1000.0
FREQUENCY (MHz)
Ω
–40C
+85C
+25C
TPC 6. AD8187 Large Signal Bandwidth vs.
Temperature, V
= 2 V p-p, RL = 150
OUT
Ω
REV. A
–5–
AD8186/AD8187
www.BDTIC.com/ADI
0
–10
–20
–30
–40
–50
–60
–70
CROSSTALK (dB)
–80
–90
–100
–110
0.1
110100 1000
FREQUENCY (MHz)
TPC 7. AD8186 All Hostile Crosstalk* vs. Frequency
0
–10
–20
–30
–40
–50
–60
–70
CROSSTALK (dB)
–80
–90
–100
–110
0.1
1.0 10.0 100.0 1000.0
FREQUENCY (MHz)
TPC 8. AD8186 Adjacent Channel Crosstalk* vs. Frequency
0
–10
–20
–30
–40
–50
–60
–70
CROSSTALK (dB)
–80
–90
–100
–110
0.1
1.0 10.0 100.0 1000.0
FREQUENCY (MHz)
TPC 10. AD8187 All Hostile Crosstalk* vs. Frequency
0
–10
–20
–30
–40
–50
–60
–70
CROSSTALK (dB)
–80
–90
–100
–110
–120
0.1
1.0 10.0 100.0 1000.0
FREQUENCY (MHz)
TPC 11. AD8187 Adjacent Channel Crosstalk* vs. Frequency
0
–10
–20
–30
–40
–50
–60
OFF ISOLATION (dB)
–70
–80
–90
–100
0
10
FREQUENCY (MHz)
100 1000
TPC 9. AD8186 OFF Isolation* vs. Frequency
0
–10
–20
–30
–40
–50
–60
–70
–80
OFF ISOLATION (dB)
–90
–100
–110
–120
110100 1000
FREQUENCY (MHz)
TPC 12. AD8187 OFF Isolation* vs. Frequency
* All hostile crosstalk—Drive all INA, listen to output with INB selected.
Adjacent channel crosstalk—Drive one INA, listen to an adjacent output with INB selected.
Off isolation—Drive inputs with OE tied low.
REV. A–6–
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