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High-speed op amps (GBW ≥ 50 MHz)

OPA2674

ACTIVE

Dual, Wideband, High Output Current Amplifier and DSL/PLC Line Driver with Current Limit

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Data sheet

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OPA2675 ACTIVE Dual-channel, wideband high-power-output current-feedback amplifier Wider bandwidth (700 MHz), higher slew rate (3000 V/us) and greater current-output capability (1A)

OPA2674

ACTIVE
Data sheet Order now

Product details

Architecture Current FB Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 5.75 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12 GBW (typ) (MHz) 250 BW at Acl (MHz) 250 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 2000 Vn at flatband (typ) (nV√Hz) 2 Vn at 1 kHz (typ) (nV√Hz) 2 Iq per channel (typ) (mA) 9 Vos (offset voltage at 25°C) (max) (mV) 4.5 Rail-to-rail No Features Adjustable BW/IQ/IOUT, Shutdown Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 55 Input bias current (max) (pA) 25000000 Offset drift (typ) (µV/°C) 4 Iout (typ) (mA) 500 2nd harmonic (dBc) 72 3rd harmonic (dBc) 81 Frequency of harmonic distortion measurement (MHz) 5
Architecture Current FB Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 5.75 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12 GBW (typ) (MHz) 250 BW at Acl (MHz) 250 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 2000 Vn at flatband (typ) (nV√Hz) 2 Vn at 1 kHz (typ) (nV√Hz) 2 Iq per channel (typ) (mA) 9 Vos (offset voltage at 25°C) (max) (mV) 4.5 Rail-to-rail No Features Adjustable BW/IQ/IOUT, Shutdown Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 55 Input bias current (max) (pA) 25000000 Offset drift (typ) (µV/°C) 4 Iout (typ) (mA) 500 2nd harmonic (dBc) 72 3rd harmonic (dBc) 81 Frequency of harmonic distortion measurement (MHz) 5
SOIC (D) 8 29.4 mm² 4.9 x 6 SOIC (D) 14 51.9 mm² 8.65 x 6
  • WIDEBAND +12V OPERATION: 220MHz (G = +4)
  • UNITY-GAIN STABLE: 250MHz (G = +1)
  • HIGH OUTPUT CURRENT: 500mA
  • OUTPUT VOLTAGE SWING: 10VPP
  • HIGH SLEW RATE: 2000V/µs
  • LOW SUPPLY CURRENT: 18mA
  • FLEXIBLE POWER CONTROL: SO-14 Only
  • OUTPUT CURRENT LIMIT (±800mA)
  • APPLICATIONS
    • POWER LINE MODEM
    • xDSL LINE DRIVERS
    • CABLE MODEM DRIVERS
    • MATCHED I/Q CHANNEL AMPLIFIERS
    • BROADBAND VIDEO LINE DRIVERS
    • ARB LINE DRIVERS
    • HIGH CAP LOAD DRIVER

All trademarks are the property of their respective owners.
  • WIDEBAND +12V OPERATION: 220MHz (G = +4)
  • UNITY-GAIN STABLE: 250MHz (G = +1)
  • HIGH OUTPUT CURRENT: 500mA
  • OUTPUT VOLTAGE SWING: 10VPP
  • HIGH SLEW RATE: 2000V/µs
  • LOW SUPPLY CURRENT: 18mA
  • FLEXIBLE POWER CONTROL: SO-14 Only
  • OUTPUT CURRENT LIMIT (±800mA)
  • APPLICATIONS
    • POWER LINE MODEM
    • xDSL LINE DRIVERS
    • CABLE MODEM DRIVERS
    • MATCHED I/Q CHANNEL AMPLIFIERS
    • BROADBAND VIDEO LINE DRIVERS
    • ARB LINE DRIVERS
    • HIGH CAP LOAD DRIVER

All trademarks are the property of their respective owners.

The OPA2674 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 OPA2674 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°C minimum value) with low harmonic distortion. Differential driver applications deliver < –85dBc distortion at the 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 ±6V supplies (to support +12V operation), the OPA2674 will also support a single +5V or dual ±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° dG/dP nonlinearity.

The OPA2674 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 OPA2674 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°C minimum value) with low harmonic distortion. Differential driver applications deliver < –85dBc distortion at the 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 ±6V supplies (to support +12V operation), the OPA2674 will also support a single +5V or dual ±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° dG/dP nonlinearity.
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Technical documentation

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Type Title Date
* Data sheet Dual Wideband High Output Current Operational Amplifier with Current Limit datasheet (Rev. C) 28 Aug 2008
Technical article 3 common questions when designing with high-speed amplifiers PDF | HTML 17 Jul 2020
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mar 2017
User guide DEM-OPA-SO-2A User's Guide (Rev. B) 30 Apr 2010
Application note Wireline Data Transmission and Reception 27 Jan 2010
User guide DEM-OPA-MSOP-2A User's Guide (Rev. A) 25 May 2006
User guide DEM-OPA-SO-2D User's Guide (Rev. A) 25 May 2006
Application note Noise Analysis for High Speed Op Amps (Rev. A) 17 Jan 2005
Application note Stabilizing Current-Feedback Op Amps While Optimizing Circuit Performance 28 Apr 2004
Application note Measuring Board Parasitics in High-Speed Analog Design 07 Jul 2003
Application note Current Feedback Amplifiers: Review, Stability Analysis, and Applications 20 Nov 2000

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