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運算放大器 (op amps)
精密運算放大器 (Vos < 1mV)

OPA4377

現行

四路低成本、低雜訊、5.5-MHz CMOS 運算放大器

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產品規格表

OPA4377

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 4 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.2 Vos (offset voltage at 25°C) (max) (mV) 1 Offset drift (typ) (µV/°C) 0.32 Input bias current (max) (pA) 10 GBW (typ) (MHz) 5.5 Features EMI Hardened Slew rate (typ) (V/µs) 2 Rail-to-rail In, Out Iq per channel (typ) (mA) 0.76 Vn at 1 kHz (typ) (nV√Hz) 7.5 CMRR (typ) (dB) 90 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.03 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) 0.1 Output swing headroom (to negative supply) (typ) (V) 0.01 Output swing headroom (to positive supply) (typ) (V) -0.01 THD + N at 1 kHz (typ) (%) 0.00027
Number of channels 4 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.2 Vos (offset voltage at 25°C) (max) (mV) 1 Offset drift (typ) (µV/°C) 0.32 Input bias current (max) (pA) 10 GBW (typ) (MHz) 5.5 Features EMI Hardened Slew rate (typ) (V/µs) 2 Rail-to-rail In, Out Iq per channel (typ) (mA) 0.76 Vn at 1 kHz (typ) (nV√Hz) 7.5 CMRR (typ) (dB) 90 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.03 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) 0.1 Output swing headroom (to negative supply) (typ) (V) 0.01 Output swing headroom (to positive supply) (typ) (V) -0.01 THD + N at 1 kHz (typ) (%) 0.00027
TSSOP (PW) 14 32 mm² (5 mm × 6.4 mm)
  • GAIN BANDWIDTH PRODUCT: 5.5MHz
  • LOW NOISE: 7.5nV/√Hz at 1kHz
  • OFFSET VOLTAGE: 1mV (max)
  • INPUT BIAS CURRENT: 0.2pA
  • RAIL-TO-RAIL OUTPUT
  • UNITY-GAIN STABLE
  • EMI INPUT FILTERING
  • QUIESCENT CURRENT: 0.76mA/ch
  • SUPPLY VOLTAGE: 2.2V to 5.5V
  • SMALL PACKAGES:
    SC70, SOT23, and MSOP
  • APPLICATIONS
    • PHOTODIODE PREAMP
    • PIEZOELECTRIC SENSOR PREAMP
    • SENSOR SIGNAL CONDITIONING
    • AUDIO EQUIPMENT
    • ACTIVE FILTERS

    All trademarks are the property of their respective owners.
    • GAIN BANDWIDTH PRODUCT: 5.5MHz
    • LOW NOISE: 7.5nV/√Hz at 1kHz
    • OFFSET VOLTAGE: 1mV (max)
    • INPUT BIAS CURRENT: 0.2pA
    • RAIL-TO-RAIL OUTPUT
    • UNITY-GAIN STABLE
    • EMI INPUT FILTERING
    • QUIESCENT CURRENT: 0.76mA/ch
    • SUPPLY VOLTAGE: 2.2V to 5.5V
    • SMALL PACKAGES:
      SC70, SOT23, and MSOP
  • APPLICATIONS
    • PHOTODIODE PREAMP
    • PIEZOELECTRIC SENSOR PREAMP
    • SENSOR SIGNAL CONDITIONING
    • AUDIO EQUIPMENT
    • ACTIVE FILTERS

    All trademarks are the property of their respective owners.

    The OPA377 family of operational amplifiers are wide-bandwidth CMOS amplifiers that provide very low noise, low input bias current, and low offset voltage while operating on a low quiescent current of 0.76mA (typ).

    The OPA377 op amps are optimized for low-voltage, single-supply applications. The exceptional combination of ac and dc performance make them ideal for a wide range of applications, including small signal conditioning, audio, and active filters. In addition, these parts have a wide supply range with excellent PSRR, making them attractive for applications that run directly from batteries without regulation.

    The OPA377 is available in the SC70-5, SOT23-5, and SO-8 packages. The dual OPA2377 is offered in the SO-8 and MSOP-8, and the quad OPA4377 in the TSSOP-14 packages. All versions are specified for operation from –40°C to +125°C.

    The OPA377 family of operational amplifiers are wide-bandwidth CMOS amplifiers that provide very low noise, low input bias current, and low offset voltage while operating on a low quiescent current of 0.76mA (typ).

    The OPA377 op amps are optimized for low-voltage, single-supply applications. The exceptional combination of ac and dc performance make them ideal for a wide range of applications, including small signal conditioning, audio, and active filters. In addition, these parts have a wide supply range with excellent PSRR, making them attractive for applications that run directly from batteries without regulation.

    The OPA377 is available in the SC70-5, SOT23-5, and SO-8 packages. The dual OPA2377 is offered in the SO-8 and MSOP-8, and the quad OPA4377 in the TSSOP-14 packages. All versions are specified for operation from –40°C to +125°C.
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    技術文件

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    重要文件 類型 標題 格式選項 下載最新的英文版本 日期
    * 資料表 5MHz, Low-Noise, Single, Dual, Quad CMOS Operational Amplifiers datasheet (Rev. B) 2011/1/27
    電子書 The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML 2017/3/28

    設計與開發

    如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

    開發板

    AMP-PDK-EVM — 放大器性能開發套件評估模組

    放大器性能開發套件 (PDK) 是一款評估模組 (EVM) 套件，可測試通用運算放大器 (op amp) 參數，並與大多數運算放大器和比較器相容。EVM 套件提供主板和多個插槽式子卡選項，可滿足封裝需求，使工程師能夠快速評估和驗證裝置性能。

    AMP-PDK-EVM 套件支援五種最熱門的業界標準封裝，包括：

    • D (SOIC-8 和 SOIC-14)
    • PW (TSSOP-14)
    • DGK (VSSOP-8)
    • DBV (SOT23-5 和 SOT23-6)
    • DCK (SC70-5 和 SC70-6)
    使用指南: PDF | HTML
    支援產品和硬體
    模擬型號

    OPA377, OPA2377 and OPA4377 PSpice Model (Rev. A)

    SBOM674A.ZIP (31 KB) - PSpice 模型
    支援產品和硬體
    模擬型號

    OPA377, OPA2377 and OPA4377 TINA-TI Reference Design (Rev. A)

    SBOM676A (144 KB) - TINA-TI 參考設計
    支援產品和硬體
    模擬型號

    OPA377, OPA2377 and OPA4377 TINA-TI Spice Model (Rev. A)

    SBOM675A.ZIP (6 KB) - TINA-TI Spice 模型
    支援產品和硬體
    計算工具

    ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

    類比工程師的計算機旨在加速類比電路設計工程師定期使用的許多重複計算。此基於 PC 的工具提供圖形介面，列出各種常見計算，從使用回饋電阻器設定運算放大器增益到選擇適當的電路設計元件以穩定類比數位轉換器 (ADC) 驅動緩衝電路。

    除了作為獨立工具使用外，此計算機還與類比工程師口袋參考中描述的概念相得益彰。

    支援產品和硬體
    計算工具

    OPAMP-NOISECALC — Noise Calculator

    This folder contains three tools to help in understandning and managing noise in cicuits. The included tools are:

    • A noise generator tool - This is a Lab View 4-Run Time executable that generates Gaussian white noise, uniform white noise, 1/f noise, short noise, and 60Hz line noise. Temporal data, (...)
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    參考設計

    PMP15036 — 適用於音訊功率放大器的封包追蹤電源參考設計

    此封包追蹤電源參考設計可協助延長 Bluetooth® 或 Wi-Fi 喇叭等可攜式音訊應用的電池壽命。此設計中的低功耗降壓式轉換器具備音訊功率放大器封包追蹤功能，可在整個輸出電壓範圍維持高效率。將音訊包絡訊號加入 TI TPS61178 裝置的 FB 腳位，可使輸出電壓依據音訊訊號的包絡變化動態調整，進而最佳化 TPA3128D2 功率放大器的耗電表現。
    支援產品和硬體
    參考設計

    PMP9774 — 適用於音訊功率放大器並採用 TPS61088 的封包追蹤電源參考設計

    此參考設計提供封包追蹤電源供應電路，適合配備 TPS61088 的音訊功率放大器 (PA)。將音訊封包訊號新增至 FB 接腳後，TPS61088 的輸出電壓便可隨音訊訊號封包而改變。因此 TPS61088 可為 PA 提供動態變化的供應電壓。因此，PA 在整個輸出功率範圍內總是保持高效率運作。

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    TSSOP (PW) 14 Ultra Librarian
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