AD8174ARZ-R7 Analog Devices Inc, AD8174ARZ-R7 Datasheet

AD8174ARZ-R7

Manufacturer Part Number

AD8174ARZ-R7

Description

IC,ANALOG MUX,SINGLE,4-CHANNEL,BIPOLAR,SOP,14PIN,PLASTIC

Manufacturer

Analog Devices Inc

Type

Analog Multiplexer/Ampr

Datasheet

1.AD8170ARZ.pdf (16 pages)

Specifications of AD8174ARZ-R7

Applications

Multiplexer with Amplifier

Voltage - Supply

±4 V ~ 6 V

Package / Case

14-SOIC (3.9mm Width), 14-SOL

Mounting Type

Surface Mount

Package

14SOIC N

Multiplexer Architecture

4:1

Maximum Turn-off Time

120(Typ)@Â±5V ns

Maximum Turn-on Time

17(Typ)@Â±5V ns

Power Supply Type

Dual

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Interface

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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PRODUCT DESCRIPTION

The AD8170(2:1) and AD8174(4:1) are very high speed

buffered multiplexers. These multiplexers offer an internal

current feedback output amplifier whose gain can be pro-

grammed via external resistors and is capable of delivering 50

mA of output current. They offer –3 dB signal bandwidth of

250 MHz and slew rate of greater than 1000 V/ s. Additionally,

the AD8170 and AD8174 have excellent video specifications

with low differential gain and differential phase error of 0.02%

and 0.05 and 0.1 dB flatness out to 80 MHz. With a low 78

dB of crosstalk and better than 88 dB isolation, these devices are

useful in many high speed applications. These are low power

devices consuming only 9.7 mA from a 5 V supply.

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.

FEATURES

Fully Buffered Inputs and Outputs

Fast Channel Switching: 10 ns

Internal Current Feedback Output Amplifier

High Speed

Low Power: < 10 mA

Excellent Video Specifications (R

Low Crosstalk of –78 dB @ 5 MHz

High Disable Isolation of –88 dB @ 5 MHz

High Shutdown Isolation of –92 dB @ 5 MHz

Low Cost

Fast Output Disable Feature for Connecting Multiple

Shutdown Feature Reduces Power to 1.5 mA (AD8174 Only)

APPLICATIONS

Pixel Switching for “Picture-In-Picture”

LCD and Plasma Displays

Video Routers

High Output Drive: 50 mA

Flexible Gain Setting via External Resistor(s)

250 MHz Bandwidth, G = +2

1000 V/ s Slew Rate

Fast Settling Time of 15 ns to 0.1%

Gain Flatness of 0.1 dB Beyond 80 MHz

0.02% Differential Gain Error

0.05 Differential Phase Error

Devices (AD8174 Only)

= 150

, G = +2)

The AD8174 offers a high speed disable feature allowing the

output to be put into a high impedance state for cascading

stages so that the off channels do not load the output bus.

Additionally, the AD8174 can be shut down (SD) when not in

use to minimize power consumption (I

products will be offered in 8-lead and 14-lead PDIP and SOIC

packages.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 617/329-4700

Fax: 617/326-8703

–0.1

–0.3

–0.4

–0.5

–0.2

0.1

Figure 1. Small Signal Frequency Response

G = +2

250 MHz, 10 ns Switching

FUNCTIONAL BLOCK DIAGRAM

SELECT

= 499 (AD8170R)

= 549 (AD8174R)

= 100

= 50mV rms

Multiplexers w/Amplifier

GND

–V

IN0

IN3

IN0

IN1

IN2

World Wide Web Site: http://www.analog.com

10M

FREQUENCY – Hz

AD8170/AD8174

AD8170

AD8174

100M

= 1.5 mA). These

–V

IN1

–V

ENABLE

OUT

–1

–2

–3

–4

–5

–6

–7

–8

–9

Related parts for AD8174ARZ-R7

AD8174ARZ-R7 Summary of contents

Page 1

FEATURES Fully Buffered Inputs and Outputs Fast Channel Switching Internal Current Feedback Output Amplifier High Output Drive Flexible Gain Setting via External Resistor(s) High Speed 250 MHz Bandwidth 1000 V/ s Slew ...

Page 2

AD8170/AD8174–SPECIFICATIONS Parameter SWITCHING CHARACTERISTICS 1 Switching Time 50% Logic to 10% Output Settling 50% Logic to 90% Output Settling 50% Logic to 99.9% Output Settling 2 ENABLE to Channel ON Time (AD8174R) 50% Logic to 90% Output Settling 2 ENABLE ...

Page 3

Parameter INPUT CHARACTERISTICS Input Resistance Input Capacitance Input Voltage Range Input Common-Mode Rejection Ratio OUTPUT CHARACTERISTICS Output Voltage Swing Output Current Short Circuit Current Output Resistance Output Capacitance POWER SUPPLY Operating Range Power Supply Rejection Ratio +PSRR Power Supply Rejection ...

Page 4

AD8170/AD8174 1 ABSOLUTE MAXIMUM RATINGS Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12.6 V ...

Page 5

Typical Performance Characteristics – AD8170/AD8174 t = 7.5ns t = 9.1ns RISE FALL DUT OUTPUT OUT IN0, IN2 = +0.5V IN1, IN3 = +0.5V 5ns/DIV Figure 4. Channel Switching Characteristics AD8174R INØ = +0.5VDC OUTPUT R ...

Page 6

AD8170/AD8174 499 549 100 L 20ns/DIV Figure 10. Small Signal Pulse Response V OUT 499 549 100 L ...

Page 7

p-p OUT – 499 (AD8170R 549 (AD8174R) – 100 L –60 –70 2ND HARMONIC –80 –90 –100 3RD HARMONIC –110 –120 0 FREQUENCY ...

Page 8

AD8170/AD8174 THEORY OF OPERATION General The AD8170/AD8174 multiplexers integrate wideband analog switches with a high speed current feedback amplifier. The input switches are complementary bipolar follower stages that are turned on and off by using a current steering technique that ...

Page 9

Equation 4 can be used to calculate expected gain error due to the current feedback amplifier’s finite transimpedance and common mode rejection. For low gains and recommended feedback resistors, this will be typically less than 0.4%. For most applications with ...

Page 10

AD8170/AD8174 p-p OUT 499 (AD8170R 549 (AD8174R 300PF S(OUT) V INPUT V IN 20ns/DIV Figure 25. Pulse Response Driving a Large Load ...

Page 11

IN0 75 IN1 75 IN2 75 0.1µF –5V + 10µF IN3 75 IN4 75 IN5 75 IN6 75 0.1µF –5V + 10µF IN7 75 Color Document Scanner Charge Coupled Devices (CCDs) find widespread use in scanner applications. A monochrome CCD ...

Page 12

AD8170/AD8174 EVALUATION BOARD Evaluation boards for the AD8170 and AD8174 are available that have been carefully laid out and tested to demonstrate the specified high speed performance of the devices. Figure 28 and Figure 32 show the schematics of the ...

Page 13

IN0 R1 75 IN1 R2 75 IN2 R3 75 –V S IN3 Figure 33. AD8174 Component Side Silkscreen Figure 34. AD8174 Board Layout (Component Side) REV. 0 AD8174 + ...

Page 14

AD8170/AD8174 NOTES 1. AD8170R/AD8174R Evaluation Board inputs are configured with 50 impedance striplines. This FR4 board type has the following stripline dimensions: 60-mil width, 12-mil gap between center conductor and outside ground plane “is- lands,” and 62-mil board thickness. 2. ...

Page 15

Plastic DIP (N-8) 0.430 (10.92) 0.348 (8.84 0.280 (7.11) 0.240 (6.10 0.060 (1.52) PIN 1 0.015 (0.38) 0.210 (5.33) MAX 0.130 (3.30) 0.160 (4.06) MIN 0.115 (2.93) SEATING 0.022 (0.558) 0.100 0.070 (1.77) PLANE (2.54) ...

Page 16

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