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运算放大器 (op amps)
精密运算放大器 (Vos<1mV)

OPA377

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低成本、低噪声、5.5MHz CMOS 运算放大器

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OPA377

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产品详情

Number of channels 1 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, Small Size 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 1 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, Small Size 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
SOT-23 (DBV) 5 8.12 mm² (2.9 mm × 2.8 mm) SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm) SOT-SC70 (DCK) 5 4.2 mm² (2 mm × 2.1 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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    技术文档

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    顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
    * 数据表 5MHz, Low-Noise, Single, Dual, Quad CMOS Operational Amplifiers 数据表 (Rev. B) 2011-1-27
    应用手册 逐步升高压摆率 (Rev. A) PDF | HTML 英语版 (Rev.A) PDF | HTML 2024-10-1
    电路设计 反相衰减器电路 PDF | HTML 英语版 PDF | HTML 2021-9-16
    电子书 The Signal e-book: 有关运算放大器设计主题的博客文章汇编 PDF | HTML 英语版 PDF | HTML 2018-1-31
    应用手册 Extending Op Amp Bandwidth using Active Feedback Phase Correction 2013-7-16

    设计与开发

    如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

    评估板

    AMP-PDK-EVM — 放大器高性能开发套件评估模块

    放大器高性能开发套件 (PDK) 是一款用于测试常见运算放大器参数的评估模块 (EVM) 套件，与大多数运算放大器和比较器均兼容。该 EVM 套件提供了一个主板，主板上具有多个插槽式子卡选项以满足封装需求，使工程师能够快速评估和验证器件性能。

    AMP-PDK-EVM 套件支持五种常用的业界通用封装，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）
    用户指南: PDF | HTML
    支持的产品和硬件
    仿真模型

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

    SBOM674A.ZIP (31 KB) - PSpice 模型
    支持的产品和硬件
    仿真模型

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

    SBOM676A (144 KB) - TINA-TI 参考设计
    支持的产品和硬件
    仿真模型

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

    SBOM675A.ZIP (6 KB) - TINA-TI Spice 模型
    支持的产品和硬件
    仿真模型

    OPA377-Q1, OPA2377-Q1 and OPA4377-Q1 TINA-TI Spice Model (Rev. B)

    SBOM400B.ZIP (6 KB) - TINA-TI Spice 模型
    支持的产品和硬件
    计算工具

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

    模拟工程师计算器旨在加快模拟电路设计工程师经常运用的许多重复性计算。该基于 PC 的工具提供图形界面，其中显示各种常见计算列表，从使用反馈电阻器设置运算放大器增益到选择合适的电路设计元件，以稳定模数转换器 (ADC) 驱动器缓冲器电路。

    除了可用作独立工具之外，该计算器还能很好地与模拟工程师口袋参考中所述的概念配合使用。

    支持的产品和硬件
    计算工具

    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, (...)
    支持的产品和硬件
    设计工具

    CIRCUIT060071 — 反相衰减器电路

    此电路将输入信号 Vi 反相，并应用 -40dB 的信号增益。反相放大器的共模电压等于应用于同相输入的电压，该输入在该设计中接地。
    支持的产品和硬件
    封装 引脚 CAD 符号、封装和 3D 模型
    SOT-23 (DBV) 5 Ultra Librarian
    SOIC (D) 8 Ultra Librarian
    SOT-SC70 (DCK) 5 Ultra Librarian
    适用于评估类项目的 TI 标准条款与条件。

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