AD828AR-REEL7

Overview

The AD828AR-REEL7 is a dual, low-power video operational amplifier manufactured by Analog Devices Inc. It is optimized for video applications requiring gains of +2 or greater and high output drive capability, such as cable driving. The device features a 130 MHz -3 dB bandwidth at G = +2, a 450 V/µs slew rate, and an 80 ns settling time to 0.01%. It operates with a maximum supply current of 15 mA and provides a minimum output current of 50 mA per amplifier. The input offset voltage is 2.0 mV max. It supports flexible power supplies including +5 V single supply and ±5 V to ±15 V dual supplies.

Feature Summary

• Excellent video performance with differential gain and phase errors of 0.01% and 0.05°
• High speed operation with 130 MHz bandwidth and 450 V/µs slew rate
• Low power consumption with 15 mA maximum supply current
• High output drive capability suitable for driving back-terminated cables

Applications

• Video cameras
• Professional video equipment
• Video monitors
• CATV systems
• Color copiers and image scanners

Procurement Notes

Verify the specific ordering suffix REEL7 indicates 7-inch tape and reel packaging when sourcing components. Confirm that the part number corresponds to the SOIC-8 package variant. Ensure compatibility with the required operating temperature range of -40°C to +85°C. Cross-reference the manufacturer's ordering guide to validate the exact package option and revision level before procurement.

Selection Notes

Select this component for designs requiring high-speed signal processing with low power constraints. It is suitable for use as a gain stage or active filter in high-speed video systems. Consider its ability to drive heavy resistive loads and terminated cables. Evaluate its performance against requirements for differential gain and phase error specifications. Ensure the application benefits from its flexible power supply options and high output current capability.

Part Context

The AD828 series includes variants such as the AD828AN (Plastic Mini-DIP) and AD828AR (SOIC). The AD828AR-REEL7 specifically denotes the surface-mount SOIC-8 package supplied in a 7-inch tape and reel format. This packaging facilitates automated assembly processes. Other variants include the AD828AR-REEL for 13-inch reels. All variants share the same electrical characteristics and functional block diagram.

Replacement Considerations

Direct substitutes within the same family include the AD828AR and AD828AN. Verify pinout compatibility and package dimensions when replacing through-hole DIP versions with surface-mount SOIC versions. Ensure that any replacement maintains the required video performance metrics and power supply flexibility.

FAQ

What is the maximum differential input voltage?

The absolute maximum rating for differential input voltage is ±6 V.

Can the AD828 drive capacitive loads?

Yes, it can drive capacitive loads of 10 pF or less. Performance improves with higher closed-loop gains.

What is the recommended feedback resistor value?

Feedback resistors should be ≤ 1 kΩ to prevent stray capacitance from limiting performance.