The ADA4311-1 is a low-cost, dual, high current output line driver with shutdown. The product features high speed, wide output swing, low distortion, high output current, power management and shutdown functions, and is suitable for applications such as home networking line drivers, twisted pair line drivers, power line communications (PLC), video line drivers, ARB line drivers, and I/Q channel amplifiers.
The ADA4311-1 is a low‑cost, dual, high‑current line driver with shutdown capability. It combines two high‑speed current‑feedback operational amplifiers offering up to 310 MHz 3 dB bandwidth, 1050 V/µs slew rate and a 20.6 Vpp differential output swing from a 12 V supply. The device includes CMOS‑compatible power‑down pins that allow selectable quiescent currents from 1 mA to 11.8 mA per amplifier.
The datasheet details pin functions, typical application circuits for PLC and networking, absolute maximum ratings, thermal resistance, and extensive performance graphs such as frequency response, distortion, and output impedance. It also lists the 10‑lead MINI_SO_EP package with a thermal resistance of 44 °C/W and an operating temperature range of –40 °C to +85 °C.
| 3 dB Bandwidth (typ) | 310 MHz |
|---|---|
| Slew Rate (typ) | 1050 V/µs |
| Supply Voltage | 12 V |
| Typical Supply Current (PD1=0, PDO=0) | 11.8 mA/amp |
| Operating Temperature Range | –40 °C to +85 °C |
In power‑down mode the quiescent current drops to 1 mA per amplifier.
The absolute maximum supply voltage rating is 13.6 V.
The typical 3 dB bandwidth is 310 MHz.