OPA2674I-14DG4 Datasheet

High Speed Operational Amplifiers


The OPA2674I-14DG4 provides the high output current and low distortion required in emerging xDSL and Power Line Modem driver applications. Operating on a single +12V supply, the OPA2674I-14DG4 consumes a low 9mA/ch quiescent current to deliver a very high 500mA output current. This output current supports even the most demanding ADSL CPE requirements with > 380mA minimum output current (+25&deg;C minimum value) with low harmonic distortion. Differential driver applications deliver < &minus;85dBc distortion atthe peak upstream power levels of full rate ADSL. The high 200MHz bandwidth also supports the most demanding VDSL line driver requirements. Power control features are included in the SO-14 package version to allow system power to be minimized. Two logic control lines allow four quiescent power settings. These include full power, power cutback for short loops, idle state for no signal transmission but line match maintenance, and shutdown for power off with a high impedance output. Specified on &plusmn;6V supplies (to support +12V operation), the OPA2674I-14DG4 will also support a single +5V or dual &plusmn;5V supply. Video applications will benefit from a very high output current to drive up to 10 parallel video loads (15Ω) with < 0.1%/0.1&deg;dG/dP nonlinearity. OPA2674I-14DG4 Features &bull; WIDEBAND +12V OPERATION: 220MHz (G = +4)&bull; UNITY-GAIN STABLE: 250MHz (G = +1)&bull; HIGH OUTPUT CURRENT: 500mA&bull; OUTPUT VOLTAGE SWING: 10VPP&bull; HIGH SLEW RATE: 2000V/&micro;s&bull; LOW SUPPLY CURRENT: 18mA&bull; FLEXIBLE POWER CONTROL: SO-14 Only&bull; OUTPUT CURRENT LIMIT (&plusmn;800mA) OPA2674I-14DG4 Applications &bull; POWER LINE MODEM&bull; xDSL LINE DRIVERS&bull; CABLE MODEM DRIVERS&bull; MATCHED I/Q CHANNEL AMPLIFIERS&bull; BROADBAND VIDEO LINE DRIVERS&bull; ARB LINE DRIVERS&bull; HIGH CAP LOAD DRIVER


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