AD8321ARZ-REEL

AD8321ARZ-REEL, digitally controlled variable gain amplifier, SOIC 8, 11V, 20nA, Analog Devices

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Price:: US $0.45~0.55 / piece [Get Latest Price]

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	US $0.45~0.55

PartNumber:: AD8321ARZ-REEL

Brand:: Analog Devices - ADI | Pack: SOIC | D/C: 11+

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Products Upload time: 2012-03-30

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Part Number:AD8321ARZ-REEL
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Product Summary

The AD8321ARZ-REEL is a low cost digitally controlled variable gain amplifier optimized for coaxial line driving applications such as cable modems that are designed to the DOCSIS (upstream) standard. An 8-bit serial word determines the desired output gain over a 53.4 dB range, resulting in gain changes of 0.75 dB/LSB. The AD8321ARZ-REEL comprises a digitally controlled variable attenuator of 0 dB to –53.4 dB, which is preceded by a low noise, fixed gain buffer and followed by a low distortion high power amplifier. The applications of the AD8321ARZ-REEL include Gain Programmable Line Driver, HFC High Speed Data Modems, Interactive CATV Set-Top Boxes, CATV Plant Test Equipment, General Purpose IF Variable Gain Block.

Parametrics

AD8321ARZ-REEL absolute maximum ratings: (1)Supply Voltage +VS, Pins 7, 8, 9, 17, 20: +11 V; (2)Input Voltages Pins 18, 19: ±0.5 V; Pins 1, 2, 3, 6: -0.8 V to +5.5 V; (3)Internal Power Dissipation Small Outline (R): 0.90 W; (4)Operating Temperature Range: -40℃ to +85℃; (5)Storage Temperature Range: -65℃ to +150℃; (6)Lead Temperature, Soldering 60 seconds: +300℃.

Features

AD8321ARZ-REEL features: (1)Linear in dB Gain Response Over >53 dB Range; (2)Drives Low Distortion >11 dBm Signal into 75Ω Load: –53 dBc SFDR at 42 MHz; (3)Very Low Output Noise Level; (4)Maintains Constant 75 V Output Impedance, Power-Up and Power-Down Condition; No Line Transformer Required; (5)Upper Bandwidth: 235 MHz (Min Gain); (6)9 V Single Supply Operation; (7)Power-Down Functionality; (8)Supports SPI Interface; (9)Low Cost.