The AD8325 is a low-cost, digitally controlled line driver with features such as programmable gain, low distortion, and low output noise level.
The AD8325 is a 5 V supply operation device designed to support the DOCSIS standard for reverse path transmission. It features an 8-bit serial word interface that determines output gain over a range of 59.45 dB in steps of 0.75 dB. The device includes a low noise fixed gain buffer, a digitally controlled variable attenuator, and a low distortion high power amplifier.
| Gain Range | 58.45 to 60.45 dB |
|---|---|
| Bandwidth (-3 dB) | 100 MHz |
| Supply Voltage | 4.75 V to 5.25 V |
| Quiescent Current (Transmit Enable) | 123 mA typical |
The gain is programmable in steps of 0.75 dB over a range of approximately 59.45 dB.
The output noise level is -48 dBmV in a 160 kHz bandwidth.
Yes, it has a sleep mode function that reduces quiescent current to 4 mA.