AD8320ARP

The AD8320ARP is one member of the AD8320  series.The AD8320 is a digitally controlled variable gain amplifier optimized for coaxial line driving applications. An 8-bit serial word determines the desired output gain over a 36dB range (256 gain levels). The AD8320 provides linear gain response.

Features of the AD8320 are:(1)upper bandwidth: 150 MHz;(2)single supply operation from 5 V to 12 V;(3)supports SPI input control standard;(4)power-up and power-down condition.The AD8320 is composed of three analog functions in the power-up or forward mode.The input inverter/buffer amplifier provides single-ended to differential output conversion. The output signals are nominally 180 degrees out of phase and equal in amplitude with a differential voltage gain of 2 (6dB).Maintaining close to 180 degrees and equal amplitude is required for proper gain accuracy of the attenuator core over the specified operating frequency. The input buffer/inverter also provides equal dc voltages to the core inputs via the internal reference. This is required to ensure proper core linearity over the full specified power supply range (5V to 12V).

The absolute maximum ratings of the AD8320 can be summarized as:(1)internal power dissipation small outline (RP):1.3 W;(2)operating temperature range:40°C to +85°C;(3)storage temperature range:65°C to +150°C;(4)lead temperature, soldering 60 seconds:+300°C.Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device.  This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied.Exposure to absolute maximum rating conditions for extended periods may affect device reliability.ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection.Although the AD8320 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD ESD SENSITIVE DEVICE precautions are recommended to avoid performance degradation or loss of functionality.