ANALOG DEVICES AD8044 Service Manual

Quad 150 MHz

(Hz)

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FEATURES Single AD8041 and Dual AD8042 Also Available Fully Specified at +3 V, +5 V, and ⴞ5 V Supplies Output Swings to Within 25 mV of Either Rail Input Voltage Range Extends 200 mV Below Ground No Phase Reversal with Inputs 1 V Beyond Supplies Low Power of 2.75 mA/Amplifier High Speed and Fast Settling on +5 V

150 MHz –3 dB Bandwidth (G = +1) 170 V/␮s Slew Rate 40 ns Settling Time to 0.1%

Good Video Specifications (R

Gain Flatness of 0.1 dB to 12 MHz

0.06% Differential Gain Error

0.15ⴗ Differential Phase Error

Low Distortion

–68 dBc Total Harmonic @ 5 MHz

Outstanding Load Drive Capability

Drives 30 mA 0.5 V from Supply Rails

APPLICATIONS Active Filters Video Switchers Distribution Amplifiers A/D Driver Professional Cameras CCD Imaging Systems Ultrasound Equipment (Multichannel)

PRODUCT DESCRIPTION

The AD8044 is a quad, low power, voltage feedback, high speed amplifier designed to operate on +3 V, +5 V, or ±5 V supplies. It has true single-supply capability with an input voltage range extending 200 mV below the negative rail and within 1V of the positive rail.

2.5V

Figure 1. Output Swing: Gain = –1, RL = 2 k

= 150 ⍀, G = +2)

VS = +5V

2␮s

Rail-to-Rail Amplifier

AD8044

CONNECTION DIAGRAM

14-Lead Plastic DIP and SOIC

OUT A

–IN A

+IN A

V+

AD8044

+IN B

–IN B

OUT B

TOP VIEW

The output voltage swing extends to within 25 mV of each rail, providing the maximum output dynamic range. Additionally, it features gain flatness of 0.1 dB to 12 MHz, while offering differential gain and phase error of 0.04% and 0.22∞ on a single +5 V supply. This makes the AD8044 useful for video electronics, such as cameras, video switchers, or any high speed portable equipment. The AD8044’s low distortion and fast settling make it ideal for active filter applications.

The AD8044 offers low power supply current of 13.1 mA max and can run on a single +3.3 V power supply. These features are ideally suited for portable and battery-powered applications where size and power are critical.

The wide bandwidth of 150 MHz, along with 170 V/ms of slew rate on a single +5 V supply, make the AD8044 useful in many general-purpose, high speed applications where dual power supplies of up to ±6 V and single supplies from +3 V to +12 V are needed. The AD8044 is available in 14-lead PDIP and SOIC.

–3

NORMALIZED GAIN (dB)

–6

–9

–12

100k

1M 10M 100M

FREQUENCY

Figure 2. Frequency Response: Gain = +1, VS = +5 V

OUT D

–IN D

+IN D

V–

+IN C

–IN C

OUT C

VS = +5V G = +1

REV. B

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. Trademarks and registered trademarks are the property of their respective owners.

AD8044–SPECIFICATIONS

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Parameter Conditions Min Typ Max Units

DYNAMIC PERFORMANCE

–3 dB Small Signal Bandwidth, V Bandwidth for 0.1 dB Flatness G = +2, R Slew Rate G = –1, V Full Power Response V Settling Time to 1% G = –1, V Settling Time to 0.1% 40 ns

NOISE/DISTORTION PERFORMANCE

Total Harmonic Distortion f Input Voltage Noise f = 10 kHz 16 nV/÷Hz Input Current Noise f = 10 kHz 850 fA/÷Hz Differential Gain Error (NTSC) G = +2, R Differential Phase Error (NTSC) G = +2, R Crosstalk f = 5 MHz, RL = 1 kW, G = +2 –60 dB

DC PERFORMANCE

Input Offset Voltage 1.0 6 mV

Offset Drift 8 mV/∞C Input Bias Current 2 4.5 mA

Input Offset Current 0.2 1.2 mA Open-Loop Gain R

INPUT CHARACTERISTICS

Input Resistance 225 kW Input Capacitance 1.6 pF Input Common-Mode Voltage Range –0.2 to 4 V Common-Mode Rejection Ratio VCM = 0 V to 3.5 V 80 90 dB

OUTPUT CHARACTERISTICS

Output Voltage Swing R

Output Voltage Swing: R Output Voltage Swing: R

Output Current T Short Circuit Current Sourcing 45 mA

Capacitive Load Drive G = +2 40 pF

POWER SUPPLY

Operating Range 312V Quiescent Current 11 13.1 mA Power Supply Rejection Ratio VS = 0, +5 V, ±1 V 70 80 dB

OPERATING TEMPERATURE RANGE –40 +85 ∞C

Specifications subject to change without notice.

< 0.5 V p-p G = +1 80 150 MHz

(@ TA = +25ⴗC, VS = +5 V, RL = 2 k⍀ to 2.5 V, unless otherwise noted.)

AD8044A

= 150 W 12 MHz

= 4 V Step 140 170 V/ms

= 2 V p-p 26 MHz

= 5 MHz, VO = 2 V p-p, G = +2, RL = 1 kW –68 dB

MIN–TMAX

= 1 kW 82 94 dB

MIN–TMAX

= 10 kW to 2.5 V 0.03 to 4.975 V

= 1 kW to 2.5 V 0.25 to 4.75 0.075 to 4.91 V

= 150 W to 2.5 V 0.55 to 4.4 0.25 to 4.65 V

MIN–TMAX, VOUT

Sinking 85 mA

= 2 V Step 30 ns

= 150 W to 2.5 V 0.04 %

= 150 W to 2.5 V 0.22 Degrees

8mV

4.5 mA

88 dB

= 0.5 V to 4.5 V 30 mA

–2–

REV. B

SPECIFICATIONS

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Parameter Conditions Min Typ Max Units

DYNAMIC PERFORMANCE

–3 dB Small Signal Bandwidth, V Bandwidth for 0.1 dB Flatness G = +2, R Slew Rate G = –1, V Full Power Response V Settling Time to 1% G = –1, V Settling Time to 0.1% 55 ns

NOISE/DISTORTION PERFORMANCE

Total Harmonic Distortion f Input Voltage Noise f = 10 kHz 16 nV/÷ Hz Input Current Noise f = 10 kHz 600 fA/÷Hz Differential Gain Error (NTSC) G = +2, R Differential Phase Error (NTSC) G = +2, R Crosstalk f = 5 MHz, RL = 1 kW, G = +2 –60 dB

DC PERFORMANCE

Input Offset Voltage 1.5 5.5 mV

Offset Drift 8 mV/∞C Input Bias Current 2 4.5 mA

Input Offset Current 0.2 1.2 mA Open-Loop Gain R

INPUT CHARACTERISTICS

Input Resistance 225 kW Input Capacitance 1.6 pF Input Common-Mode Voltage Range –0.2 to 2 V Common-Mode Rejection Ratio VCM = 0 V to 1.5 V 76 90 dB

OUTPUT CHARACTERISTICS

Output Voltage Swing R

Output Voltage Swing: R Output Voltage Swing: R

Output Current T Short Circuit Current Sourcing 30 mA

Capacitive Load Drive G = +2 35 pF

POWER SUPPLY

Operating Range 312V Quiescent Current 10.5 12.5 mA Power Supply Rejection Ratio VS = 0, +3 V, +0.5 V 70 80 dB

OPERATING TEMPERATURE RANGE 0 +70 ∞C

Specifications subject to change without notice.

(@ TA = +25ⴗC, VS = +3 V, RL = 2 k⍀ to 1.5 V, unless otherwise noted.)

AD8044A

< 0.5 V p-p G = +1 80 135 MHz

= 5 MHz, VO = 2 V p-p, G = –1, RL = 100 W –48 dB

MIN–TMAX

= 1 kW 80 92 dB

MIN–TMAX

= 10 kW to 1.5 V 0.025 to 2.98 V

= 1 kW to 1.5 V 0.17 to 2.82 0.06 to 2.93 V

= 150 W to 1.5 V 0.35 to 2.55 0.15 to 2.75 V

MIN–TMAX, VOUT

Sinking 50 mA

= 150 W 10 MHz

= 2 V Step 110 150 V/ms

= 2 V p-p 22 MHz

= 2 V Step 35 ns

= 150 W to 1.5 V, Input VCM = 0.5 V 0.13 %

= 150 W to 1.5 V, Input VCM = 0.5 V 0.3 Degrees

88 dB

= 0.5 V to 2.5 V 25 mA

AD8044

7.5 mV

4.5 mA

REV. B

–3–

AD8044–SPECIFICATIONS

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Parameter Conditions Min Typ Max Units

DYNAMIC PERFORMANCE

–3 dB Small Signal Bandwidth, V Bandwidth for 0.1 dB Flatness G = +2, R Slew Rate G = –1, V Full Power Response V Settling Time to 0.1% G = –1, V Settling Time to 0.01% 40 ns

NOISE/DISTORTION PERFORMANCE

Total Harmonic Distortion f Input Voltage Noise f = 10 kHz 16 nV/÷Hz Input Current Noise f = 10 kHz 900 fA/÷Hz Differential Gain Error (NTSC) G = +2, R Differential Phase Error (NTSC) G = +2, R Crosstalk f = 5 MHz, RL = 1 kW, G = +2 –60 dB

DC PERFORMANCE

Input Offset Voltage 1.4 6.5 mV

Offset Drift 10 mV/∞C Input Bias Current 2 4.5 mA

Input Offset Current 0.2 1.2 mA Open-Loop Gain R

INPUT CHARACTERISTICS

Input Resistance 225 kW Input Capacitance 1.6 pF Input Common-Mode Voltage Range –5.2 to 4 V Common-Mode Rejection Ratio VCM = –5 V to 3.5 V 76 90 dB

OUTPUT CHARACTERISTICS

Output Voltage Swing R

Output Voltage Swing: R Output Voltage Swing: R

Output Current T Short Circuit Current Sourcing 60 mA

Capacitive Load Drive G = +2 40 pF

POWER SUPPLY

Operating Range 312V Quiescent Current 11.5 13.6 mA Power Supply Rejection Ratio VS = –5, +5 V, ±1 V 70 80 dB

OPERATING TEMPERATURE RANGE –40 +85 ∞C

Specifications subject to change without notice.

< 0.5 V p-p G = +1 85 160 MHz

(@ TA = +25ⴗC, VS = ⴞ5 V, RL = 2 k⍀ to 0 V, unless otherwise noted.)

AD8044A

= 150 W 15 MHz

= 8 V Step 150 190 V/ms

= 2 V p-p 29 MHz

= 5 MHz, VO = 2 V p-p, G = +2 –72 dB

MIN–TMAX

= 1 kW 82 96 dB

MIN–TMAX

= 10 kW –4.97 to +4.97 V

= 1 kW –4.6 to +4.6 –4.85 to +4.85 V

= 150 W –4.0 to +3.8 –4.5 to +4.5 V

MIN–TMAX, VOUT

Sinking 100 mA

= 2 V Step 30 ns

= 150 W 0.06 %

= 150 W 0.15 Degrees

9mV

4.5 mA

92 dB

= –4.5 V to +4.5 V 30 mA

–4–

REV. B

AD8044

WARNING!

ESD SENSITIVE DEVICE

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ABSOLUTE MAXIMUM RATINGS

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +12.6 V

Internal Power Dissipation

Plastic DIP Package (N) . . . . . . . . . . . . . . . . . . . 1.6 Watts

Small Outline Package (R) . . . . . . . . . . . . . . . . . . 1.0 Watts

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

± 0.5 V

Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . ± 3.4 V

Output Short Circuit Duration

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

Storage Temperature Range (N, R) . . . . . . . –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 the device in free air:

14-Lead Plastic Package: qJA = 75∞C/W 14-Lead SOIC Package: qJA = 120∞C/W

MAXIMUM POWER DISSIPATION

The maximum power that can be safely dissipated by the AD8044 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 AD8044 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.

2.5

TJ = +150 C

2.0

1.5

1.0

MAXIMUM POWER DISSIPATION (W)

0.5

14-LEAD SOIC

–30 –20 –10 0 10 20 30 40 50 60 80

–50 90–40

AMBIENT TEMPERATURE (ⴗC)

14-LEAD PLASTIC DIP PACKAGE

Figure 3. Maximum Power Dissipation vs. Temperature

ORDERING GUIDE

Temperature Package Package

Model Range Description Option

AD8044AN –40∞C to +85∞C 14-Lead PDIP N-14 AD8044AR-14 –40∞C to +85∞C 14-Lead SOIC R-14 AD8044AR-14-REEL –40∞C to +85∞C 14-Lead SOIC 13" REEL R-14 AD8044AR-14-REEL7 –40∞C to +85∞C 14-Lead SOIC 7" REEL R-14 AD8044ARZ-14* –40∞C to +85∞C 14-Lead Plastic SOIC R-14 AD8044ARZ-14-REEL* –40∞C to +85∞C 14-Lead SOIC 13" REEL R-14 AD8044ARZ-14-REEL7* –40∞C to +85∞C 14-Lead SOIC 7" REEL R-14

*Z = Pb free part

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 AD8016 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. B

–5–

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