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運算放大器 (op amps)
高速運算放大器 (GBW ≥ 50 MHz)

OPA2673

現行

具主動離線控制的雙路寬頻高輸出電流放大器和 PLC 線路驅動器

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產品規格表

OPA2673

現行
產品規格表 立即訂購

產品詳細資料

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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重要文件 類型 標題 格式選項 日期
* Data sheet OPA2673 Dual, High Output Current Operational Amplifier With Active Offline Control datasheet (Rev. H) PDF | HTML 2023年 6月 21日
Application brief Power Line Communication in Solar Applications PDF | HTML 2024年 12月 12日
Application brief LiFi: TI High-Speed Products for Optical Wireless Communication PDF | HTML 2023年 8月 7日
Technical article 3 common questions when designing with high-speed amplifiers PDF | HTML 2020年 7月 17日
E-book The Signal e-book: A compendium of blog posts on op amp design topics 2017年 3月 28日
Application note Wireline Data Transmission and Reception 2010年 1月 27日
Application note A Powerline Communication Line Driver Requirement Overview 2009年 11月 4日

設計與開發

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開發板

DEM-OPA-RGV-EVM — 用於採用 VQFN 封裝的高速高輸出電流放大器的空板評估模組

DEM-OPA-RGV-EVM 是一個空板的評估模組 (EVM)，用於我們的採用 VQFN (RGV) 封裝的雙寬頻運算放大器。本 EVM 是根據高速性能規格及電源線通訊 (PLC) 和傳輸線驅動器來設計。EVM 的設計可讓我們使用實驗室設備的 50-Ω SMA 接頭的高速雙放大器，進行快速有效率的實驗室測試。EVM 可以針對不同增益及單一或分裂電源運作，進行輕鬆配置。兩個通道可當成獨立放大器使用，或可設為差動輸入至差動輸出驅動器。適當電阻器的變壓器可在輸出時當成 50-Ω 單端輸出使用。
使用指南: PDF | HTML
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模擬型號

OPA2673 PSpice Model

SBOM338.ZIP (5 KB) - 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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計算工具

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VOLT-DIVIDER-CALC — Voltage divider calculation tool

The voltage divider calculation tool (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. VOLT-DIVIDER-CALC can also be used to (...)
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PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI 是有助於評估類比電路功能的設計和模擬環境。這款全功能設計和模擬套件使用 Cadence® 的類比分析引擎。PSpice for TI 包括業界最大的模型庫之一，涵蓋我們的類比和電源產品組合，以及特定類比行為模型，且使用無需支付費用。

PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前，建立完整的終端設備設計和解決方案原型，進而縮短上市時間並降低開發成本。 

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TINA-TI — 基於 SPICE 的類比模擬程式

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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