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High-speed op amps (GBW ≥ 50 MHz)

OPA2673

ACTIVE

Dual, Wideband, High Output Current Amplifier and PLC Line Driver with Active Off-line Control

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Data sheet

OPA2673

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) 13 GBW (typ) (MHz) 600 BW at Acl (MHz) 600 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 3500 Vn at flatband (typ) (nV√Hz) 2.4 Vn at 1 kHz (typ) (nV√Hz) 5.5 Iq per channel (typ) (mA) 16.5 Vos (offset voltage at 25°C) (max) (mV) 7 Rail-to-rail No Features Adjustable BW/IQ/IOUT, Shutdown Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 56 Input bias current (max) (pA) 25000000 Offset drift (typ) (µV/°C) 25 Iout (typ) (mA) 700 2nd harmonic (dBc) 67 3rd harmonic (dBc) 80 Frequency of harmonic distortion measurement (MHz) 10
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) 13 GBW (typ) (MHz) 600 BW at Acl (MHz) 600 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 3500 Vn at flatband (typ) (nV√Hz) 2.4 Vn at 1 kHz (typ) (nV√Hz) 5.5 Iq per channel (typ) (mA) 16.5 Vos (offset voltage at 25°C) (max) (mV) 7 Rail-to-rail No Features Adjustable BW/IQ/IOUT, Shutdown Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 56 Input bias current (max) (pA) 25000000 Offset drift (typ) (µV/°C) 25 Iout (typ) (mA) 700 2nd harmonic (dBc) 67 3rd harmonic (dBc) 80 Frequency of harmonic distortion measurement (MHz) 10
VQFN (RGV) 16 16 mm² 4 x 4
  • Wideband operation: 340 MHz (G = 4 V/V)
  • Unity-gain stable: 600 MHz (G = 1 V/V)
  • High output current: 700 mA
  • Active offline 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 = 4 V/V)
  • Unity-gain stable: 600 MHz (G = 1 V/V)
  • High output current: 700 mA
  • Active offline 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 supports the most demanding power-line modem requirements with an 460 mA specified minimum output current drive (at 25°C).

Power-control features are included to minimize system power consumption. Two logic-control lines allow for four quiescent power settings, full power, 75% bias power, 50% bias power, and offline mode with active offline control, to provide high impedance to large signals present at the output pin. The two channels of the OPA2673 can be used independently as individual op amps, 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 supports the most demanding power-line modem requirements with an 460 mA specified minimum output current drive (at 25°C).

Power-control features are included to minimize system power consumption. Two logic-control lines allow for four quiescent power settings, full power, 75% bias power, 50% bias power, and offline mode with active offline control, to provide high impedance to large signals present at the output pin. The two channels of the OPA2673 can be used independently as individual op amps, 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 Offline Control datasheet (Rev. H) PDF | HTML 21 Jun 2023
Application note LiFi: TI High-Speed Products for Optical Wireless Communication PDF | HTML 07 Aug 2023
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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OPA2673 PSpice Model

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OPA2673 TINA-TI Reference Design

SBOM339.TSC (36 KB) - TINA-TI Reference Design
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OPA2673 TINA-TI Spice Model

SBOM340.TSM (29 KB) - TINA-TI Spice Model
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Calculation tool

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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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TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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