AD8325ARUZ Datasheet PDF - ADI

●Product Details

●The AD8325 is a low-cost, digitally controlled, variable gain amplifier optimized for coaxial line driving applications such as cable modems that are designed to the MCNS-DOCSIS upstream standard. An 8-bit serial word determines the desired output gain over a 59.45 dB range resulting in gain changes of 0.7526 dB/LSB.

●The AD8325 is packaged in a low-cost 28-lead TSSOP, operates from a single 5 V supply, and has an operational temperature range of -40°C to +85°C.

●An evaluation board is available for this product and may be ordered using the following product number AD8325-EVAL.

●### Features and Benefits

● Supports DOCSIS Standard for Reverse Path Transmission

● Gain Programmable in 0.75 dB Steps Over a 59.45 dB Range

● Low Distortion at 61 dBmV Output

●–57 dBc SFDR at 21 MHz

●–55 dBc SFDR at 42 MHz

● Output Noise Level: –48 dBmV in 160 kHz

● Maintains 75Ω Output Impedance

● Transmit Enable and Transmit Disable Modes

● Upper Bandwidth:100 MHz (Full Gain Range)

● 5 V Supply Operation

● Supports SPI Interfaces