AD828ANZ Dual 50MHz Low Noise Video Op Amp 1200V/µs Slew Rate 0.02%/0.03° Diff Gain/Phase Internal Gain-Setting Resistors for High-Speed Imaging CCD Processing and Ultrasound Systems

AD828ANZ Dual 50MHz Low Noise Video Op Amp 1200V/µs Slew Rate 0.02%/0.03° Diff Gain/Phase Internal Gain-Setting Resistors for High-Speed Imaging CCD Processing and Ultrasound Systems

FEATURES

Excellent Video Performance

Differential Gain and Phase Error of 0.01% and 0.05°

High Speed

130 MHz 3 dB Bandwidth (G = +2)

450 V/ s Slew Rate

80 ns Settling Time to 0.01%

Low Power

15 mA Max Power Supply Current

High Output Drive Capability

50 mA Minimum Output Current per Amplifier

Ideal for Driving Back Terminated Cables

Flexible Power Supply

Specified for +5 V, 5 V, and 15 V Operation

±3.2 V Min Output Swing into a 150 Load (VS = 5 V)

Excellent DC Performance

2.0 mV Input Offset Voltage

Available in 8-Lead SOIC and 8-Lead Plastic Mini-DIP

Applications

1:Professional Video and Broadcast Equipment

Examples: Video line drivers, video routing switchers, broadcast camera channels, professional-grade video capture cards.

Reason: Its exceptionally low differential gain error (0.02%) and differential phase error (0.03°) minimize color distortion, ensuring high-fidelity video signals, which is a critical metric in professional video.

2:Medical Imaging Systems

Examples: Front-end receive circuits in medical ultrasound systems, portable ultrasound devices.

Reason: The high bandwidth (50MHz) and high slew rate (1200V/µs) enable precise amplification and transmission of high-frequency ultrasound echo signals, while its low-noise performance helps improve image signal-to-noise ratio and clarity.

3:High-Speed Data Acquisition Systems

Examples: CCD (Charge-Coupled Device) signal processing channels in imaging systems, driver amplifiers for high-speed ADCs (Analog-to-Digital Converters), oscilloscope front-ends.

Reason: It can rapidly respond to and amplify weak signals from sensors (like CCDs) and drive them faithfully to subsequent ADCs without degrading signal integrity.

4:Communications and RF Systems

Examples: Intermediate Frequency (IF) amplification, signal conditioning.

Reason: Its sufficient bandwidth and slew rate allow it to handle RF signals in the IF range for amplification and buffering.

DESCRIPTION

The AD828 is a low cost, dual video op amp optimized for use in video applications that require gains of +2 or greater and high output drive capability, such as cable driving. Due to its low power and single-supply functionality, along with excellent differential gain and phase errors, the AD828 is ideal for power sensitive applications such as video cameras and professional video equipment.

With video specs like 0.1 dB flatness to 40 MHz and low differential gain and phase errors of 0.01% and 0.05°, along with 50 mA of output current per amplifier, the AD828 is an excellent choice for any video application. The 130 MHz gain bandwidth and 450 V/µs slew rate make the AD828 useful in many high speed applications, including video monitors, CATV, color copiers, image scanners, and fax machines.

The AD828 is fully specified for operation with a single 5 V power supply and with dual supplies from ±5 V to ±15 V. This power supply flexibility, coupled with a very low supply current of 15 mA and excellent ac characteristics under all power supply conditions, make the AD828 the ideal choice for many demand ing yet power-sensitive applications.

The AD828 is a voltage feedback op amp that excels as a gain stage (gains > +2) or active filter in high speed and video systems and achieves a settling time of 45 ns to 0.1%, with a low input offset voltage of 2 mV max.

The AD828 is available in low cost, small 8-lead plastic mini-DIP and SOIC packages.

INFORMATION

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