AD8079AR Analog Devices Inc, AD8079AR Datasheet

AD8079AR

Manufacturer Part Number

AD8079AR

Description

Buffer Amplifier IC

Manufacturer

Analog Devices Inc

Datasheet

1.AD8079ARZ.pdf (12 pages)

Specifications of AD8079AR

No. Of Amplifiers

Slew Rate

800V/Âµs

Amplifier Case Style

SOIC

No. Of Pins

Peak Reflow Compatible (260 C)

Bandwidth

260MHz

Leaded Process Compatible

Mounting Type

Surface Mount

Rohs Status

RoHS non-compliant

Amplifier Type

Buffer

Number Of Circuits

-3db Bandwidth

260MHz

Current - Input Bias

3µA

Voltage - Input Offset

10000µV

Current - Supply

10mA

Current - Output / Channel

70mA

Voltage - Supply, Single/dual (±)

6 V ~ 12 V, ±3 V ~ 6 V

Operating Temperature

-40°C ~ 85°C

Package / Case

8-SOIC (3.9mm Width)

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Output Type

Gain Bandwidth Product

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

AD8079AR

Manufacturer:

ADI

Quantity:

364

Company:

Meier Automation Equipment Co., Limited

Part Number:

AD8079AR

Manufacturer:

ADI/亚德诺

Quantity:

20 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

AD8079ARZ

Manufacturer:

ADI/亚德诺

Quantity:

20 000

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PRODUCT DESCRIPTION

The AD8079 is a dual, low power, high speed buffer designed

to operate on 5 V supplies. The AD8079’s pinout offers excel-

lent input and output isolation compared to the traditional dual

amplifier pin configuration. With two ac ground pins separating

both the inputs and outputs, the AD8079 achieves very low

crosstalk of less than –70 dB at 5 MHz.

Additionally, the AD8079 contains gain setting resistors factory

set at G = +2.0 (A grade) or Gain = +2.2 (B grade) allowing

circuit configurations with minimal external components. The

B grade gain of +2.2 compensates for gain loss through a system

by providing a single-point trim. Using active laser trimming of

these resistors, the AD8079 guarantees tight control of gain and

channel-channel gain matching. With its performance and con-

figuration, the AD8079 is well suited for driving differential

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

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

FEATURES

Factory Set Gain

Optimum Dual Pinout

Excellent Video Specifications (R

Low Power of 50 mW/Amplifier (5 mA)

High Speed and Fast Settling

Low Distortion of –65 dBc THD, f

High Output Drive of Over 70 mA

High ESD Tolerance (5 kV)

Available in Small 8-Pin SOIC

APPLICATIONS

Differential A-to-D Driver

Video Line Driver

Differential Line Driver

Professional Cameras

Video Switchers

Special Effects

RF Receivers

AD8079A: Gain = +2.0 (Also +1.0 & –1.0)

AD8079B: Gain = +2.2 (Also +1 & –1.2)

Gain of 2.2 Compensates for System Gain Loss

Minimizes External Components

Tight Control of Gain and Gain Matching (0.1%)

Simplifies PCB Layout

Low Crosstalk of –70 dB @ 5 MHz

Gain Flatness 0.1 dB to 50 MHz

0.01% Differential Gain Error

0.02 Differential Phase Error

260 MHz, –3 dB Bandwidth

750 V/ s Slew Rate (2 V Step), 800 V/ s (4 V Step)

40 ns Settling Time to 0.1% (2 V Step)

Drives Up to 8 Back-Terminated 75

Side) While Maintaining Good Differential Gain/

Phase Performance (0.01%/0.17 )

= 5 MHz

= 150

Loads (4 Loads/

)

cables and transformers. Its low distortion and fast settling are

ideal for buffering high speed dual or differential A-to-D con-

verters.

The AD8079 features a unique transimpedance linearization

circuitry. This allows it to drive video loads with excellent differ-

ential gain and phase performance of 0.01% and 0.02 on only

50 mW of power per amplifier. It features gain flatness of 0.1 dB

to 50 MHz. This makes the AD8079 ideal for professional video

electronics such as cameras and video switchers.

The AD8079 offers low power of 5 mA/amplifier (V

and can run on a single +12 V power supply while delivering

over 70 mA of load current. All of this is offered in a small 8-pin

SOIC package. These features make this amplifier ideal for por-

table and battery powered applications where size and power are

critical.

The outstanding bandwidth of 260 MHz along with 800 V/ s of

slew rate make the AD8079 useful in many general purpose high

speed applications where dual power supplies of 3 V to 6 V

are required.

The AD8079 is available in the industrial temperature range of

–40 C to +85 C.

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

Tel: 617/329-4700

Fax: 617/326-8703

–0.1

–0.2

–0.3

–0.4

–0.5

0.1

Figure 1. Frequency Response and Flatness

Gain = +2.0 & +2.2 Buffer

FUNCTIONAL BLOCK DIAGRAM

= 100

= 50mV rms

GND

+IN1

+IN2

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

8-Pin Plastic SOIC

10M

FREQUENCY – Hz

AD8079

SIDE 1

Dual 260 MHz

SIDE 1

100M

SIDE 2

OUT1

–V

OUT2

SIDE 2

AD8079

= 5 V)

–1

–2

–3

–4

–5

–6

–7

–8

–9

Related parts for AD8079AR

AD8079AR Summary of contents

Page 1

FEATURES Factory Set Gain AD8079A: Gain = +2.0 (Also +1.0 & –1.0) AD8079B: Gain = +2.2 (Also +1 & –1.2) Gain of 2.2 Compensates for System Gain Loss Minimizes External Components Tight Control of Gain and Gain Matching (0.1%) ...

Page 2

AD8079–SPECIFICATIONS Parameter DYNAMIC PERFORMANCE –3 dB Small Signal Bandwidth Bandwidth for 0.1 dB Flatness Large Signal Bandwidth Slew Rate Settling Time to 0.1% Rise & Fall Time NOISE/HARMONIC PERFORMANCE Total Harmonic Distortion Crosstalk, Output to Output Input Voltage Noise Input ...

Page 3

... Specification is for device in free air: 8-Pin SOIC Package: = 160 C/Watt JA Model Gain AD8079AR G = +2.0 AD8079AR-REEL G = +2.0 AD8079AR-REEL7 G = +2.0 AD8079BR G = +2.2 AD8079BR-REEL G = +2.2 AD8079BR-REEL7 G = +2.2 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. ...

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AD8079AR Analog Devices Inc, AD8079AR Datasheet

AD8079AR

Specifications of AD8079AR

Available stocks

Related parts for AD8079AR

AD8079AR Summary of contents

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