Product details

Architecture Current FB Number of channels (#) 2 Total supply voltage (Min) (+5V=5, +/-5V=10) 5.75 Total supply voltage (Max) (+5V=5, +/-5V=10) 12 GBW (Typ) (MHz) 600 BW @ Acl (MHz) 600 Acl, min spec gain (V/V) 1 Slew rate (Typ) (V/us) 3000 Vn at flatband (Typ) (nV/rtHz) 2.4 Vn at 1 kHz (Typ) (nV/rtHz) 2.4 Iq per channel (Typ) (mA) 16 Vos (offset voltage @ 25 C) (Max) (mV) 7 Rail-to-rail No Features Shutdown, Adjustable BW/IQ/IOUT Rating Catalog Operating temperature range (C) -40 to 85 CMRR (Typ) (dB) 56 Input bias current (Max) (pA) 25000000 Offset drift (Typ) (uV/C) 25 Output current (Typ) (mA) 700 2nd harmonic (dBc) 67 3rd harmonic (dBc) 80 @ MHz 10
Architecture Current FB Number of channels (#) 2 Total supply voltage (Min) (+5V=5, +/-5V=10) 5.75 Total supply voltage (Max) (+5V=5, +/-5V=10) 12 GBW (Typ) (MHz) 600 BW @ Acl (MHz) 600 Acl, min spec gain (V/V) 1 Slew rate (Typ) (V/us) 3000 Vn at flatband (Typ) (nV/rtHz) 2.4 Vn at 1 kHz (Typ) (nV/rtHz) 2.4 Iq per channel (Typ) (mA) 16 Vos (offset voltage @ 25 C) (Max) (mV) 7 Rail-to-rail No Features Shutdown, Adjustable BW/IQ/IOUT Rating Catalog Operating temperature range (C) -40 to 85 CMRR (Typ) (dB) 56 Input bias current (Max) (pA) 25000000 Offset drift (Typ) (uV/C) 25 Output current (Typ) (mA) 700 2nd harmonic (dBc) 67 3rd harmonic (dBc) 80 @ MHz 10
VQFN (RGV) 16 16 mm² 4 x 4 VQFN (RGV) 16 16 mm² 4.0 x 4.0
  • Wideband operation: 340 MHz (G = 4V/V)
  • Unity-gain stable: 600 MHz (G = 1V/V)
  • High output current: 700 mA
  • Active off-line mode for TDMA
  • Adjustable power modes:
    • Full-bias mode: 16.5 mA/channel
    • 75% bias mode: 12.5 mA/channel
    • 50% bias mode: 8.5 mA/channel
    • Off-Line mode: 2.4 mA/channel
  • Bipolar-supply range: ±3.5 V to ±6.5 V
  • Single-supply range: 5.75 V to 13 V
  • High slew rate: 3500 V/µs
  • Overtemperature protection circuit
  • Output current limit (±1 A)
  • Wideband operation: 340 MHz (G = 4V/V)
  • Unity-gain stable: 600 MHz (G = 1V/V)
  • High output current: 700 mA
  • Active off-line mode for TDMA
  • Adjustable power modes:
    • Full-bias mode: 16.5 mA/channel
    • 75% bias mode: 12.5 mA/channel
    • 50% bias mode: 8.5 mA/channel
    • Off-Line mode: 2.4 mA/channel
  • Bipolar-supply range: ±3.5 V to ±6.5 V
  • Single-supply range: 5.75 V to 13 V
  • High slew rate: 3500 V/µs
  • Overtemperature protection circuit
  • Output current limit (±1 A)

The OPA2673 provides the high output current and low distortion required for power-line modem driver and test and measurement applications. The OPA2673 operates on power-supplies ranging from 5.75 V to 13 V and consumes a low 16.5 mA/channel quiescent current to deliver a very high 700 mA output current. The OPA2673 can support the most demanding power-line modem requirements with 460 mA assured minimum output current drive (at 25 °C).

Power control features are included to minimize system power consumption. Two logic control lines allow four quiescent power settings: full power, 75% bias power, 50% bias power and offline mode with active offline control to present a high impedance even with large signals present at the output pin. The two channels of OPA2673 can be used independently as individual opamps or can be configured as a differential-input to differential-output, high current line driver.

The OPA2673 provides the high output current and low distortion required for power-line modem driver and test and measurement applications. The OPA2673 operates on power-supplies ranging from 5.75 V to 13 V and consumes a low 16.5 mA/channel quiescent current to deliver a very high 700 mA output current. The OPA2673 can support the most demanding power-line modem requirements with 460 mA assured minimum output current drive (at 25 °C).

Power control features are included to minimize system power consumption. Two logic control lines allow four quiescent power settings: full power, 75% bias power, 50% bias power and offline mode with active offline control to present a high impedance even with large signals present at the output pin. The two channels of OPA2673 can be used independently as individual opamps or can be configured as a differential-input to differential-output, high current line driver.

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Technical documentation

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Type Title Date
* Data sheet OPA2673 Dual, High Output Current Operational Amplifier With Active Off-Line Control datasheet (Rev. G) PDF | HTML 09 Dec 2021
Technical article 3 common questions when designing with high-speed amplifiers 17 Jul 2020
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mar 2017
Application note Wireline Data Transmission and Reception 27 Jan 2010
Application note A Powerline Communication Line Driver Requirement Overview 04 Nov 2009

Design & development

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Evaluation board

DEM-OPA-RGV-EVM — Unpopulated evaluation module for high-speed high-output current amplifiers in VQFN package

The DEM-OPA-RGV-EVM is an unpopulated evaluation module (EVM) for our dual, wideband operational amplifiers in the VQFN (RGV) package. This EVM is designed in accordance with high-speed performance specifications and our power line communication (PLC) and transmission line drivers. The EVM is (...)
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Simulation model

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SBOM338.ZIP (5 KB) - PSpice Model
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SBOM339.TSC (36 KB) - TINA-TI Reference Design
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SBOM340.TSM (29 KB) - TINA-TI Spice Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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Calculation tool

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Calculation tool

VOLT-DIVIDER-CALC — Voltage Divider Determines A Set of Resistors for a Voltage Divider

VOLT-DIVIDER-CALC quickly determines a set of resistors for a voltage divider. This KnowledgeBase Javascript utility can be used to find a set of resistors for a voltage divider to achieve the desired output voltage. This calculator can also be used to design non-inverting attentuation circuits.

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VQFN (RGV) 16 View options

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