AD828ARZ-REEL

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Applications:	Voltage Feedback
Output Type:	--
Number of Circuits:	2
-3db Bandwidth:	130MHz
Slew Rate:	450 V/µs
Current - Supply:	14mA
Current - Output / Channel:	50mA
Voltage - Supply, Single/Dual (±):	5 V ~ 36 V, ±2.5 V ~ 18 V
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC
Base Part Number:	AD828

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Introduction

AD828ARZ-REEL is a cost-effective, wideband and integrated amplifier designed to provide critical video amplification functions in a single package. It consists of one voltage buffer and three wideband, high-gain, current-feedback differential amplifiers, driven in unity gain configuration to provide good frequency tracking and video performance. The device offers rail-to-rail output swing and requires no external compensation capacitors. It is available in an 8-pin DIP and 8-pin SOIC package.

Application Field

AD828ARZ-REEL has wide application in video and imaging systems. It serves as a preamplifier for video signal applications, or to amplify and convert low-voltage 2-D video signal to an active pixel level. It is used to condition inputs from ADCs, CCDs and other video data sources. The amplifier’s rail-to-railInput and Output swings are ideal for signal regeneration in monitoring and signal processing usage, such as line driver applications.

Working Principle

AD828ARZ-REEL features three differential amplifiers driven in unity gain configuration to provide good frequency tracking and video performance. The voltage buffer provides high input impedance, while the three differential amplifiers have excellent linearity and an output capacitance of 7.5 pF. The differential amplifier also features an adjustable common-mode voltage range of -5V to +5V. The output voltage is auto-zeroed to eliminate the need for DC restoration and to maintain high common-mode rejection ratio. The input bias current of the amplifiers is a very important performance parameter, resulting from the current that the amplifier draws from the input signal. AD828ARZ-REEL has a wide choice of input bias currents (25nA, 30nA, 50nA and 150nA). The amplifier can also be used in high voltage applications, as its input voltage can range from -14V to +14V.

Conclusion

The AD828ARZ-REEL is a cost-effective, wideband and integrated amplifier designed to provide critical video amplification functions in a single package. The amplifier features excellent linearity, rail-to-rail input and output swings, and adjustable common-mode voltage ranges. It is used in video and imaging systems, as well as in line driver applications and signal processing usage. With its wide choice of input bias currents, the amplifier is ideal for applications in high voltage conditions with input voltages ranging from -14V to +14V.

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