Analog Devices AD8072JR, AD8072JN, AD8072ARM-REEL7, AD8072ARM-REEL, AD8072ARM Datasheet

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Low Cost, Dual/Triple

(

)

TOP VIEW

(Not to Scale)

NC = NO CONNECT

+IN1

–IN1

OUT1

OUT2

–IN2

+IN2

–V

+IN3

–IN3

OUT3

AD8073

FREQUENCY – MHz

6.1

GAIN FLATNESS – dB

6.0

5.3

0.1 500110100

5.9

5.8

5.4

5.7

5.6

5.5

VS = ⴞ5V V

= 2V p-p RF = RG = 1k⍀ RL = 150⍀ A

= ⴙ2

CLOSED-LOOP GAIN – dB

–1

0.1 dB

DIV

1 dB

DIV

FEATURES Very Low Cost Good Video Specifications (R

Gain Flatness of 0.1 dB to 10 MHz

0.05% Differential Gain Error

0.1ⴗ Differential Phase Error

Low Power

3.5 mA/Amplifier Supply Current Operates on Single 5 V to 12 V Supply

High Speed

100 MHz, –3 dB Bandwidth (G = +2) 500 V/␮s Slew Rate Fast Settling Time of 25 ns (0.1%)

Easy to Use

30 mA Output Current Output Swing to 1.3 V of Rails on Single 5 V Supply

APPLICATIONS Video Line Driver Computer Video Plug-In Boards RGB or S-Video Amplifier in Component Systems

= 150 ⍀)

Video Amplifiers

AD8072/AD8073

PIN CONFIGURATIONS

8-Lead Plastic (N), SOIC (R), and ␮SOIC (RM) Packages

OUT1

–IN1

+IN1

–V

AD8072

TOP VIEW

Not to Scale

14-Lead Plastic (N), and SOIC (R) Packages

OUT2

–IN2

+IN2

PRODUCT DESCRIPTION

The AD8072 (dual) and AD8073 (triple) are low cost, current feedback amplifiers intended for high volume, cost sensitive applications. In addition to being low cost, these amplifiers deliver solid video performance into a 150 Ω load while consuming only 3.5 mA per amplifier of supply current. Furthermore, the AD8073 is three amplifiers in a single 14-lead narrow-body SOIC package. This makes it ideal for applications where small size is essential. Each amplifier’s inputs and output are accessible providing added gain setting flexibility.

These devices provide 30 mA of output current per amplifier, and are optimized for driving one back terminated video load (150 Ω) each. These current feedback amplifiers feature gain flatness of 0.1 dB to 10 MHz while offering differential gain and phase error of 0.05% and 0.1°. This makes the AD8072 and AD8073 ideal for business and consumer video electronics.

Both will operate from a single 5 V to 12 V power supply. The outputs of each amplifier swing to within 1.3 volts of either supply rail to accommodate video signals on a single 5 V supply.

The high bandwidth of 100 MHz, 500 V/µs of slew rate, along with settling to 0.1% in 25 ns, make the AD8072 and AD8073 useful in many general purpose, high speed applications where a single 5 V or dual power supplies up to ±6 V are needed. The AD8072 is available in 8-lead plastic DIP, SOIC, and µSOIC packages while the AD8073 is available in 14-lead plastic DIP and SOIC packages. Both operate over the commercial temperature range of 0°C to 70°C. Additionally, the AD8072ARM operates over the industrial temperature range of –40°C to +85°C.

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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.

Figure 1. Large Signal Frequency Response

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 © Analog Devices, Inc., 2002

AD8072/AD8073–SPECIFICATIONS

ELECTRICAL CHARACTERISTICS

(@ TA = 25ⴗC, VS = ⴞ5 V, RL = 150 ⍀, unless otherwise noted.)

AD8072/AD8073

Parameter Conditions Min Typ Max Unit

DYNAMIC PERFORMANCE R

= 1 kΩ

–3 dB Bandwidth, Small Signal No Peaking, G = +2 80 100 MHz

0.1 dB Bandwidth, Small Signal No Peaking, G = +2 8 10 MHz Slew Rate V

= 4 V Step 500 V/µs

Settling Time to 0.1% VO = 2 V Step 25 ns

DISTORTION/NOISE PERFORMANCE R

= 1 kΩ

Differential Gain f = 3.58 MHz, G = +2 0.05 0.15 % Differential Phase f = 3.58 MHz, G = +2 0.1 0.3 Degrees Crosstalk f = 5 MHz 60 dB Input Voltage Noise f = 10 kHz 3 nV/√Hz Input Current Noise f = 10 kHz (±IIN) 6 pA/√Hz

DC PERFORMANCE

Transimpedance 0.3 MΩ Input Offset Voltage 2 6 mV

MIN

to T

MAX

8mV

Offset Drift 11 µV/°C Input Bias Current (±)412µA Input Bias Current Drift (±)12nA/°C

INPUT CHARACTERISTICS

–Input Resistance 120 Ω +Input Resistance 1 MΩ Input Capacitance 1.6 pF Common-Mode Rejection Ratio V

= –3.8 V to +3.8 V 56 dB

Input Common-Mode Voltage Range ±3.8 V

OUTPUT CHARACTERISTICS

+Output Voltage Swing 3 3.3 V –Output Voltage Swing 2.25 3 V Output Current R

= 10 Ω 30 mA

Short Circuit Current 80 mA

POWER SUPPLY

Operating Range ±2.5 to ± 6V Power Supply Rejection Ratio V

= ±4 V to ±6 V 70 dB

Quiescent Current per Amplifier 3.5 5 mA

OPERATING TEMPERATURE RANGE 0 70 °C

Specifications subject to change without notice.

–2–

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AD8072/AD8073

ELECTRICAL CHARACTERISTICS

(@ TA = 25ⴗC, VS = 5 V, RL = 150 ⍀ to 2.5 V, unless otherwise noted.)

AD8072/AD8073

Parameter Conditions Min Typ Max Unit

DYNAMIC PERFORMANCE R

= 1 kΩ

–3 dB Bandwidth, Small Signal No Peaking, G = +2 78 100 MHz

0.1 dB Bandwidth, Small Signal No Peaking, G = +2 7.8 10 MHz Slew Rate V

= 2 V Step 350 V/µs

Settling Time to 0.1% VO = 2 V Step 25 ns

DISTORTION/NOISE PERFORMANCE R

Differential Gain f = 3.58 MHz, G = +2, R Differential Phase f = 3.58 MHz, G = +2, R

= 1 kΩ

to 1.5 V 0.1 %

to 1.5 V 0.1 Degrees

Crosstalk f = 5 MHz 60 dB Input Voltage Noise f = 10 kHz 3 nV/√Hz Input Current Noise f = 10 kHz (±IIN) 6 pA/√Hz

DC PERFORMANCE

Transimpedance 0.25 MΩ Input Offset Voltage 1.5 4 mV

MIN

to T

MAX

6mV

Offset Drift 9 µV/°C Input Bias Current (±) 310µA Input Bias Current Drift (±)10nA/°C

INPUT CHARACTERISTICS

–Input Resistance 120 Ω +Input Resistance 1MΩ Input Capacitance 1.6 pF Common-Mode Rejection Ratio V

= 1.2 V to 3.8 V 54 dB

Input Common-Mode Voltage Range 1.2 to 3.8 V

OUTPUT CHARACTERISTICS

Output Voltage Swing RL = 150 Ω 1.5 to 3.5 1.3 to 3.7 V Output Voltage Swing R Output Current R

= 1 kΩ T

= 10 Ω 20 mA

MIN

to T

MAX

1.3 to 3.7 1.1 to 3.9 V

Short Circuit Current 60 mA

POWER SUPPLY

Operating Range ±2.5 to ± 6V Power Supply Rejection Ratio V

= 4 V to 6 V 64 dB

Quiescent Current per Amplifier 3 4.5 mA

OPERATING TEMPERATURE RANGE 0 70 °C

Specifications subject to change without notice.

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–3–

AD8072/AD8073

WARNING!

ESD SENSITIVE DEVICE

ABSOLUTE MAXIMUM RATINGS

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13.2 V

Internal Power Dissipation

AD8072 8-Lead Plastic (N) . . . . . . . . . . . . . . . . . . 1.3 Watts

AD8072 8-Lead Small Outline (SO-8) . . . . . . . . . 0.9 Watts

AD8072 8-Lead µSOIC (RM) . . . . . . . . . . . . . . . . 0.6 Watts

AD8073 14-Lead Plastic (N) . . . . . . . . . . . . . . . . . 1.6 Watts

AD8073 14-Lead Small Outline (R) . . . . . . . . . . . 1.0 Watts

Input Voltage (Common Mode) . . . . . . . . . . . . . . . . . . . . ± V

Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . ±1.25 V

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

. . . . . . . . . . . . . . . . . . . . . . Observe Power Derating Curves

Storage Temperature Range

N, R, RM Packages . . . . . . . . . . . . . . . . . . –65°C to +125°C

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

NOTES

Stresses above those listed under Absolute Maximum Ratings may cause perma-

nent 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.

Specification is for device in free air:

8-Lead Plastic Package: θJA = 90°C/W 8-Lead SOIC Package: θJA = 140°C/W 8-Lead µSOIC Package: θJA = 214°C/W 14-Lead Plastic Package: θJA = 75°C/W 14-Lead SOIC Package: θJA = 120°C/W

ORDERING GUIDE

Model Range Description Option

*AD8072ARM –40°C to +85°C 8-Lead µSOIC RM-8 *AD8072ARM-REEL –40°C to +85°C 13" Reel 8-Lead µSOIC RM-8 *AD8072ARM-REEL7 –40°C to +85°C 7" Reel 8-Lead µSOIC RM-8

AD8072JN 0°C to 70°C 8-Lead Plastic DIP N-8 AD8072JR 0°C to 70°C 8-Lead SOIC SO-8 AD8072JR-REEL 0°C to 70°C 13" Reel 8-Lead SOIC SO-8 AD8072JR-REEL7 0°C to 70°C 7" Reel 8-Lead SOIC SO-8 AD8073JN 0°C to 70°C 14-Lead Plastic DIP N-14 AD8073JR 0°C to 70°C 14-Lead Narrow SOIC R-14 AD8073JR-REEL 0°C to 70°C 13" Reel 14-Lead SOIC R-14 AD8073JR-REEL7 0°C to 70°C 7" Reel 14-Lead SOIC R-14

*Brand Code: HLA

Temperature Package Package

MAXIMUM POWER DISSIPATION

The maximum power that can be safely dissipated by the AD8072 and AD8073 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. Exceeding this limit temporarily 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 AD8072 and AD8073 are 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 Figures 2 and 3.

2.0

8-LEAD MINI-DIP PACKAGE

1.5

8-LEAD SOIC PACKAGE

1.0

␮

0.5

MAXIMUM POWER DISSIPATION – W

0 –50 90–40 –30 –20 –10 0 1020 30 5060708040

SOIC

AMBIENT TEMPERATURE – ⴗC

TJ = 150ⴗC

Figure 2. AD8072 Maximum Power Dissipation vs. Temperature

2.5

TJ = 150ⴗC

2.0

14-LEAD DIP PACKAGE

1.5

14-LEAD SOIC

1.0

MAXIMUM POWER DISSIPATION – W

0.5

–30 –20 –100 1020 304050 60 80

–50 90–40

Figure 3. AD8073 Maximum Power Dissipation vs. Temperature

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 AD8072/AD8073 feature 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.

–4–

AMBIENT TEMPERATURE – ⴗC

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