AD8185ARU-REEL Analog Devices Inc, AD8185ARU-REEL Datasheet

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AD8185ARU-REEL

Manufacturer Part Number
AD8185ARU-REEL
Description
IC MULTIPLEXER TRPL 2X1 24TSSOP
Manufacturer
Analog Devices Inc
Datasheet

Specifications of AD8185ARU-REEL

Rohs Status
RoHS non-compliant
Function
Multiplexer
Circuit
3 x 2:1
Voltage Supply Source
Dual Supply
Voltage - Supply, Single/dual (±)
±4.5 V ~ 5.5 V
Current - Supply
25mA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
24-TSSOP (0.173", 4.40mm Width)

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a
REV. 0
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.
*Patents pending.
PRODUCT DESCRIPTION
The AD8183 (G = +1) and AD8185 (G = +2) are high speed
triple 2:1 multiplexers. They offer –3 dB signal bandwidth up to
380 MHz, along with slew rate of 1000 V/ s. With better than
–90 dB of channel-to-channel crosstalk and isolation at 10 MHz,
they are useful in many high-speed applications. The differential
gain and differential phase errors of 0.01% and 0.02 respectively,
along with 0.1 dB flatness to 90 MHz make the AD8183 and
AD8185 ideal for professional video and RGB multiplexing. They
offer 15 ns channel-to-channel switching time, making them
an excellent choice for switching video signals, while consuming
less than 25 mA on 5 V supply voltages.
Both devices offer a high speed disable feature that can set the
output into a high impedance state. This allows the building of
larger input arrays while minimizing “OFF” channel output
loading. They operate on voltage supplies of 5 V and are offered
in a 24-lead TSSOP package.
FEATURES
Fully Buffered Inputs and Outputs
Fast Channel-to-Channel Switching: 15 ns
High Speed
Low Power: 25 mA
Excellent Video Specifications (R
Low All-Hostile Crosstalk –84 dB @ 5 MHz
Low Channel-to-Channel Crosstalk –56 dB @ 100 MHz
High “OFF” Isolation of –100 dB @ 10 MHz
Low Cost
Fast High Impedance Output Disable Feature for
APPLICATIONS
Pixel Switching for “Picture-In-Picture”
Switching RGB in LCD and Plasma Displays
RGB Video Switchers and Routers
380 MHz Bandwidth (–3 dB) 200 mV p-p
310 MHz Bandwidth (–3 dB) 2 V p-p
Fast Settling Time of 15 ns to 0.1%
Gain Flatness of 0.1 dB to 90 MHz
0.01% Differential Gain Error
0.02 Differential Phase Error
1000 V/ s Slew Rate G = +1, 2 V Step
1150 V/ s Slew Rate G = +2, 2 V Step
Connecting Multiple Devices
–54 dB @ 50 MHz
L
= 150
)
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
Figure 1. AD8185 Pulse Response; R
DGND
IN0A
IN1A
IN2A
IN2B
IN1B
IN0B
GND
GND
GND
SEL A/B
0
1
0
1
V
V
FUNCTIONAL BLOCK DIAGRAM
CC
EE
1.4V
1.2V
1.0V
0.8V
0.6V
0.4V
0.2V
0.0V
10
12
11
1
2
3
4
5
6
7
8
9
V
R
O
Triple 2:1 Multiplexers
L
World Wide Web Site: http://www.analog.com
Table I. Truth Table
= 150
= 1.4V STEP
200mV
AD8183/AD8185*
AD8183/AD8185
SELECT
OE
0
0
1
1
380 MHz, 25 mA,
DISABLE
0
1
2
© Analog Devices, Inc., 1999
2ns
OUT
INA
INB
High Z
High Z
24
23
22
19
18
17
16
15
14
13
21
20
V
OUT1
V
V
V
OE
SEL A/B
V
OUT0
OUT2
V
DVCC
L
EE
CC
CC
CC
CC
EE
= 150

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AD8185ARU-REEL Summary of contents

Page 1

FEATURES Fully Buffered Inputs and Outputs Fast Channel-to-Channel Switching High Speed 380 MHz Bandwidth (–3 dB) 200 mV p-p 310 MHz Bandwidth (–3 dB p-p 1000 V/ s Slew Rate ...

Page 2

AD8183/AD8185–SPECIFICATIONS Parameter DYNAMIC PERFORMANCE –3 dB Bandwidth (Small Signal) –3 dB Bandwidth (Small Signal) –3 dB Bandwidth (Large Signal) –3 dB Bandwidth (Large Si 0.1 dB Bandwidth Slew Rate Settling Time to 0.1% NOISE/DISTORTION PERFORMANCE Differential Gain Differential Phase All-Hostile ...

Page 3

... ORDERING GUIDE Temperature Package Model Range Description AD8183ARU – +85 C 24-Lead Plastic TSSOP RU-24 AD8185ARU – +85 C 24-Lead Plastic TSSOP RU-24 AD8183-EVAL Evaluation Board AD8185-EVAL Evaluation Board MAXIMUM POWER DISSIPATION The maximum power that can be safely dissipated by the AD8183/ AD8185 is limited by the associated rise in junction temperature. ...

Page 4

AD8183/AD8185 1 GAIN 0 –1 –2 FLATNESS –3 –4 –5 200mV p SHOWN – p 150 L –7 –8 –9 0 FREQUENCY – MHz Figure 3. AD8183 Frequency Response GAIN ...

Page 5

– 37.5 T –30 –40 –50 ALL-HOSTILE –60 ADJACENT –70 –80 –90 –100 –110 1 10 FREQUENCY – MHz Figure 9. AD8183 Crosstalk vs. Frequency – – ...

Page 6

AD8183/AD8185 0 1M 100k 10k 1k 100 0 FREQUENCY – MHz Figure 15. AD8183 Input Impedance vs. Frequency 1k 100 10 1 0.1 0 FREQUENCY – MHz Figure 16. AD8183 Output Impedance vs. Frequency; Enabled 1M ...

Page 7

FREQUENCY – MHz Figure 21. AD8183 Off Isolation, Input–Output – –PSRR 40 50 +PSRR 0.1 1 FREQUENCY – MHz ...

Page 8

AD8183/AD8185 STEP 150 5ns/DIV Figure 27. AD8183 0.1% Settling Time 100 90 SEL A/B IN0A AT + IN0B AT –1V ...

Page 9

V = 200mV STEP O 0.10V 0.05V 0.0V –0.05V –0.10V 25mV Figure 33. AD8183 Small Signal Pulse Response 0.7V STEP O 0. 0.6V 0.5V 0.4V ...

Page 10

AD8183/AD8185 THEORY OF OPERATION The AD8183 (G = +1) and AD8185 (G = +2) are triple-output, 2:1 multiplexers with TTL-compatible global input switching and output enable control. Optimized for selecting between two RGB (red, green, blue) video sources, the devices ...

Page 11

Third, the additional power and ground pins also yield lower impedance on the power and ground lines, and therefore minimize the effects of shared impedances on crosstalk. Signal routing is also important for keeping crosstalk low. Shielding and separation should ...

Page 12

AD8183/AD8185 result, the input and output traces, in addition to having a con- trolled impedance, are well shielded. SEL A/B AND OE SEL A/B (Pin 22 of the device) allows the inputs to be selected. When SEL ...

Page 13

REV. 0 Figure 43. Component Side Silkscreen Figure 44. Board Layout (Component Side) –13– AD8183/AD8185 ...

Page 14

AD8183/AD8185 Figure 45. Board Layout (75 Signal Layer) Figure 46. Board Layout (Ground Plane) –14– REV. 0 ...

Page 15

Figure 47. Board Layout (Circuit Side;) 50 REV. 0 Signal Layer Figure 48. Circuit Side Silkscreen –15– AD8183/AD8185 ...

Page 16

AD8183/AD8185 PIN 1 0.006 (0.15) 0.002 (0.05) SEATING OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 24-Lead Plastic TSSOP (RU-24) 0.311 (7.90) 0.303 (7.70 0.177 (4.50) 0.169 (4.30) 0.256 (6.50) 0.246 (6.25 0.0433 (1.10) MAX 8 ...

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