Analog Devices AD8183 5 Datasheet

380 MHz, 25 mA,

a

FEATURES
Fully Buffered Inputs and Outputs
Fast Channel-to-Channel Switching: 15 ns
High Speed

380 MHz Bandwidth (–3 dB) 200 mV p-p
310 MHz Bandwidth (–3 dB) 2 V p-p
1000 V/␮s Slew Rate G = +1, 2 V Step
1150 V/␮s Slew Rate G = +2, 2 V Step

Fast Settling Time of 15 ns to 0.1%
Low Power: 25 mA
Excellent Video Specifications (R

Gain Flatness of 0.1 dB to 90 MHz

0.01% Differential Gain Error

0.02ⴗ Differential Phase Error

Low All-Hostile Crosstalk –84 dB @ 5 MHz

–54 dB @ 50 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

Connecting Multiple Devices

= 150 ⍀)

L

Triple 2:1 Multiplexers

AD8183/AD8185*

FUNCTIONAL BLOCK DIAGRAM

IN0A

DGND

IN1A
GND
IN2A

V

V

IN2B
GND
IN1B
GND

IN0B

1
2

3
4
5
6

CC

7

EE

8

9
10

11
12

AD8183/AD8185

SELECT

DISABLE

0

1

2

24
23
22
21
20

19
18
17
16
15
14
13

V

OE

SEL A/B
V
OUT0
V

OUT1

V
OUT2
V
DVCC

V

CC

CC

EE

CC

EE

CC

APPLICATIONS
Pixel Switching for “Picture-In-Picture”
Switching RGB in LCD and Plasma Displays
RGB Video Switchers and Routers

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/µs. 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 n s 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.

Table I. Truth Table

SEL A/B OE OUT

0 0 INA
1 0 INB
0 1 High Z
1 1 High Z

VO = 1.4V STEP

1.4V

= 150V

R

L

1.2V

1.0V

0.8V

0.6V

0.4V

0.2V

0.0V

200mV

2ns

Figure 1. AD8185 Pulse Response; RL = 150

Ω

*Patents pending.

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.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: [phone] World Wide Web Site: http://www.analog.com
Fax: [phone] © Analog Devices, Inc., 1999

AD8183/AD8185–SPECIFICATIONS

(TA = 25ⴗC, VS = ⴞ5 V, RL = 1 k⍀ unless otherwise noted)

Parameter Condition Min Typ Max Unit

DYNAMIC PERFORMANCE

–3 dB Bandwidth (Small Signal) V

–3 dB Bandwidth (Small Signal) V

–3 dB Bandwidth (Large Signal) V

–3 dB Bandwidth (Large Si V

0.1 dB Bandwidth V

= 200 mV p-p 250/300 590/360 MHz

OUT

= 200 mV p-p, R

OUT

= 2 V p-p 250/300 530/350 MHz

OUT

= 2 V p-p, R

OUT

= 200 mV p-p 90/60 MHz

OUT

= 200 mV p-p, R

V

OUT

= 150 Ω 200/250 380/320 MHz

L

= 150 Ω 200/250 310/300 MHz

L

= 150 Ω 100/160 MHz

L

Slew Rate 2 V Step 1000/1150 V/µs

Settling Time to 0.1% 2 V Step, R

= 150 Ω 15 ns

L

NOISE/DISTORTION PERFORMANCE

Differential Gain NTSC or PAL, 150 Ω 0.01 %
Differential Phase NTSC or PAL, 150 Ω 0.02 Degrees

All-Hostile Crosstalk, RTI ƒ = 5 MHz, AD8185: R

ƒ = 50 MHz, AD8185: R
Channel-to-Channel Crosstalk, RTI ƒ = 100 MHz, AD8185: R
OFF Isolation ƒ = 10 MHz, R

= 150 Ω –100 dB

L

= 150 Ω –84/–72 dB

L

= 150 Ω –54/–50 dB

L

= 150 Ω –56/–54 dB

L

Voltage Noise, RTI ƒ = 10 kHz to 30 MHz 28/15 nV/√Hz

DC PERFORMANCE

Voltage Gain Error No Load 0.20 0.25/0.85 %
Input Offset Voltage, RTI 5 25/40 mV

to T

T

MIN

MAX

10 mV

Input Offset Voltage Matching, RTI Channel-to-Channel 1 25/40 mV

Input Offset Drift, RTI 15 µV/°C
Input Bias Current 6/10 10/15 µA

INPUT CHARACTERISTICS

Input Resistance 4/1 8/5 MΩ

Input Capacitance Channel Enabled 1 pF

Channel Disabled 1.5 pF

Input Voltage Range ±3.0/±1.5 V

OUTPUT CHARACTERISTICS

Output Voltage Swing R

= 1 kΩ±2.90 ±3.25 V

L

= 150 Ω±2.65 ±2.95 V

R

L

Short Circuit Current 60 mA

Output Resistance Enabled 0.3 Ω

Disabled 4/1 8/3 MΩ

Output Capacitance Disabled 4/6.5 pF

POWER SUPPLY

Operating Range ±4.5 ±5.5 V

Power Supply Rejection Ratio +PSRR +V

Power Supply Rejection Ratio –PSRR –V

= +4.5 V to +5.5 V, –VS = –5 V 58/62 66/72 dB

S

= –4.5 V to –5.5 V, +VS = +5 V 52/60 56/68 dB

S

Quiescent Current All Channels “ON” 25 30 mA

All Channels “OFF” 3/7 5/10 mA

T

MIN

to T

; All Channels “ON” 25 mA

MAX

SWITCHING CHARACTERISTICS

Switch Time Channel-to-Channel

50% Logic to 50% Output Settling IN0 = +1 V, IN1 = –1 V 15 ns

ENABLE to Channel ON Time

50% Logic to 50% Output Settling INPUT = 1 V 20 ns

ENABLE to Channel OFF Time

50% Logic to 50% Output Settling INPUT = 1 V 45 ns

Channel Switching Transient (Glitch) All Inputs Grounded 50/70 mV

DIGITAL INPUTS

Logic “1” Voltage SEL A/B and OE Inputs 2.0 V
Logic “0” Voltage SEL A/B and OE Inputs 0.8 V
Logic “1” Input Current SEL A/B and OE = 4 V 10 nA
Logic “0” Input Current SEL A/B and OE = 0.4 V 0.5 µA

OPERATING TEMPERATURE RANGE

Temperature Range Operating (Still Air) –40 +85 °C

θ

JA

θ

JC

Specifications subject to change without notice.

Operating (Still Air) 128 °C/W

Operating 42 °C/W

–2–

REV. 0

AD8183/AD8185

WARNING!

ESD SENSITIVE DEVICE

AMBIENT TEMPERATURE – 8C

2.0

–50

MAXIMUM POWER DISSIPATION – Watts

–40 –30 –20 –10 0 10 20 30 40 50 60 70 80 90

1.5

1.0

0

TJ = 1508C

0.5

ABSOLUTE MAXIMUM RATINGS

1

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.0 V

DVCC to V
Internal Power Dissipation

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±0.2 V

CC

2, 3

AD8183/AD8185 24-Lead TSSOP (RU) . . . . . . . . . . . . . 1 W

Input Voltage

IN0A, IN0B, IN1A, IN1B, IN2A, IN2B . . . . . V

SELECT A/B, OE . . . . . . . . . . . . . . . . . . DGND ≤ VIN ≤ V

Output Short Circuit Duration . . . . . . . . . . . . . . . . . . . Indefinite

≤ VIN ≤ V

EE

CC

CC

3

Storage Temperature Range . . . . . . . . . . . . . . . –65°C to +150°C

Lead Temperature Range (Soldering 10 sec) . . . . . . . . . . . 300°C

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 operational
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 (T

3

24-lead plastic TSSOP; θJA = 128°C/W. Maximum internal power dissipation (P

should be derated for ambient temperature (TA) such that P

= 25°C).

A

< (150°C–TA)/θ

D

)

D

.

JA

ORDERING GUIDE

Temperature Package Package

Model Range Description Option

AD8183ARU –40°C to +85°C 24-Lead Plastic TSSOP RU-24
AD8185ARU –40°C to +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.
The maximum safe junction temperature for plastic encapsulated
devices is determined by the glass transition temperature of the

plastic, approximately 150°C. 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 175°C for an extended period can

result in device failure.

While the AD8183/AD8185 is internally short circuit protected,
this may not be sufficient to guarantee that the maximum junction

temperature (150°C) is not exceeded under all conditions. To

ensure proper operation, it is necessary to observe the maximum
power derating curves shown in Figure 2.

Figure 2. Maximum Power Dissipation vs. Temperature

PIN CONFIGURATION

1

IN0A V

2

DGND

3

IN1A

4

GND V
IN2A OUT0

V

V
IN2B V
GND OUT2
IN1B V
GND DVCC
IN0B V

CC
EE

AD8183/

5

AD8185

6

TOP VIEW

(Not to Scale)

7
8

9
10
11
12

24
23
22
21
20
19
18
17
16
15
14
13

CC

OE

SEL A/B

CC

V

EE

OUT1

CC

EE

CC

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 AD8183/AD8185 features 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.

REV. 0

–3–

AD8183/AD8185

FREQUENCY – MHz

2

0.1

NORMALIZED GAIN – dB

1

0

–1

–2

–3

–4

–5

–6
–7
–8

1 10 100 1k

GAIN

FLATNESS

V

O

AS SHOWN

R

L

= 1kV

200mV p-p

2V p-p

200mV p-p
2V p-p

0.1

0

–0.1

–0.2

–0.3

–0.4

–0.5

–0.6

NORMALIZED FLATNESS – dB

0.2

0.3

FREQUENCY – MHz

4

0.1

NORMALIZED GAIN – dB

3

2
1

0

–1

–2

–3

–4
–5

–6

1 10 100 1k

VO = 200mV p-p
R

L

= 150V

C

L

= 5pF

TEMPERATURE AS SHOWN

+85 C

+25 C

–40 C

1

0

–1
–2

–3

–4

GAIN – dB

–5

V

–6

R

–7
–8
–9

0.1

AS SHOWN

O

= 150V

L

GAIN

FLATNESS

200mV p-p
2V p-p

1 10 100 1k

FREQUENCY – MHz

200mV p-p

2V p-p

0.1

0

–0.1

–0.2

–0.3

–0.4

–0.5

–0.6

Figure 3. AD8183 Frequency Response; RL = 150

1
0

–1
–2

–3

–4

GAIN – dB

–5

–6

–7
–8
–9

0.1

V

AS SHOWN

O

= 1kV

R

L

GAIN

FLATNESS

200mV p-p

1 10 100 1k

FREQUENCY – MHz

2V p-p

2V p-p

200mV p-p

0.3

0.2

0.1

0

–0.1

–0.2

–0.3

–0.4

–0.5

–0.6

Figure 4. AD8183 Frequency Response; RL = 1 k

FLATNESS – dB

Ω

FLATNESS – dB

Ω

1

0
–1

–2

–3
–4

–5

AS SHOWN

V

O

–6

= 150V

R

NORMALIZED GAIN – dB

L

–7
–8
–9

0.1

GAIN

FLATNESS

200mV p-p
2V p-p

1 10 100 1k

FREQUENCY – MHz

200mV p-p

2V p-p

0.1

0

–0.1

–0.2

–0.3

–0.4

–0.5

–0.6

Figure 6. AD8185 Frequency Response; RL = 150

Figure 7. AD8185 Frequency Response; RL = 1 k

NORMALIZED FLATNESS – dB

Ω

Ω

5

4

3
2

1
0

GAIN – dB

–1

–2

–3
–4

–5

0.1

Figure 5. AD8183 Frequency Response vs. Temperature

VO = 200mV p-p

= 1kV

R

L

= 5pF

C

L

TEMPERATURE AS SHOWN

1 10 100 1k

FREQUENCY – MHz

+25 C

+85 C

–40 C

Figure 8. AD8185 Frequency Response vs. Temperature

–4–

REV. 0

–10

FREQUENCY – MHz

–10

1

CROSSTALK – dB

–20
–30

–40

–50

–60

–70

–80

–90

–100

–110

10 100 1k

R

L

= 150V

R

T

= 37.5V

RTI MEASURED

ALL-HOSTILE

ADJACENT

FREQUENCY – MHz

–10

1

CHANNEL-TO-CHANNEL CROSSTALK – dB

–20
–30

–40

–50

–60

–70

–80

–90

–100

–110

10 100 1k

RL = 150V
R

T

= 37.5V

RTI MEASURED

DRIVE A, LISTEN B

DRIVE B, LISTEN A

FUNDAMENTAL FREQUENCY – MHz

0

1

DISTORTION – dBc

–10

–20

–30

–40

–50

–60

–70

–80

–90

–100

10 100

VO = 2V p-p
R

L

= 150V

SECOND HARMONIC

THIRD HARMONIC

= 1kV

R

L

–20

= 37.5V

R

T

–30

–40

–50

–60

–70

CROSSTALK – dB

–80

–90

–100

–110

1

ALL-HOSTILE

ADJACENT

10 100 1k

FREQUENCY – MHz

Figure 9. AD8183 Crosstalk vs. Frequency

–10

= 1kV

R

L

–20
–30

–40

–50

–60

–70

–80

–90

–100

CHANNEL-TO-CHANNELCROSSTALK – dB

–110

= 37.5V

R

T

DRIVE B, LISTEN A

DRIVE A, LISTEN B

1

10 100 1k

FREQUENCY – MHz

Figure 10. AD8183 Channel-to-Channel Crosstalk vs.
Frequency

AD8183/AD8185

Figure 12. AD8185 Crosstalk vs. Frequency

Figure 13. AD8185 Channel-to-Channel Crosstalk vs.
Frequency

0

= 2V p-p

V

O

–10

= 150V

R

L

–20

–30

–40

–50
–60

DISTORTION – dBc

–70

–80

–90

–100

1

Figure 11. AD8183 Distortion vs. Frequency

REV. 0

SECOND HARMONIC

THIRD HARMONIC

FUNDAMENTAL FREQUENCY – MHz

10 100

Figure 14. AD8185 Distortion vs. Frequency

–5–