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通用运算放大器

OPA2349

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双通道、5.5V、70kHz、低静态电流 (1μA)、RRIO 运算放大器

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TLV9042 正在供货 双通道、5.5V、350kHz、超低 1.2V、低静态电流 (10μA) 运算放大器 Higher GBW (350KHz), lower noise (66nV/√Hz), better accuracy (2.25mV Vos max)

OPA2349

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产品详情

Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 1.8 Rail-to-rail In, Out GBW (typ) (MHz) 0.07 Slew rate (typ) (V/µs) 0.02 Vos (offset voltage at 25°C) (max) (mV) 10 Iq per channel (typ) (mA) 0.001 Vn at 1 kHz (typ) (nV√Hz) 300 Rating Catalog Operating temperature range (°C) -55 to 125 Offset drift (typ) (µV/°C) 15 Input bias current (max) (pA) 10 CMRR (typ) (dB) 60 Iout (typ) (A) 0.008 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) 0.002 Input common mode headroom (to positive supply) (typ) (V) 0.001 Output swing headroom (to negative supply) (typ) (V) 0.3 Output swing headroom (to positive supply) (typ) (V) -0.3
Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 1.8 Rail-to-rail In, Out GBW (typ) (MHz) 0.07 Slew rate (typ) (V/µs) 0.02 Vos (offset voltage at 25°C) (max) (mV) 10 Iq per channel (typ) (mA) 0.001 Vn at 1 kHz (typ) (nV√Hz) 300 Rating Catalog Operating temperature range (°C) -55 to 125 Offset drift (typ) (µV/°C) 15 Input bias current (max) (pA) 10 CMRR (typ) (dB) 60 Iout (typ) (A) 0.008 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) 0.002 Input common mode headroom (to positive supply) (typ) (V) 0.001 Output swing headroom (to negative supply) (typ) (V) 0.3 Output swing headroom (to positive supply) (typ) (V) -0.3
SOT-23 (DCN) 8 4.64 mm² (2.9 mm × 1.6 mm) SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
  • LOW SUPPLY CURRENT: 1 µA
  • GAIN-BANDWIDTH: 70kHz
  • UNITY GAIN STABLE
  • LOW INPUT BIAS CURRENT: 10pA (max)
  • WIDE SUPPLY RANGE: 1.8V to 5.5V
  • INPUT RANGE 200mV Beyond Rails
  • OUTPUT SWINGS TO 350mV OF RAILS
  • OUTPUT DRIVE CURRENT: 8mA
  • OPEN-LOOP GAIN: 90dB
  • MicroPACKAGES: SC70, SOT23-5, SOT23-8
  • APPLICATIONS
    • BATTERY PACKS AND POWER SUPPLIES
    • PORTABLE PHONES, PAGERS, AND CAMERAS
    • SOLAR-POWERED SYSTEMS
    • SMOKE, GAS, AND FIRE DETECTION SYSTEMS
    • REMOTE SENSORS
    • PCMCIA CARDS
    • DRIVING ANALOG-TO-DIGITAL (A/D) CONVERTERS
    • MicroPOWER FILTERS

All trademarks are the property of their respective owners.
  • LOW SUPPLY CURRENT: 1 µA
  • GAIN-BANDWIDTH: 70kHz
  • UNITY GAIN STABLE
  • LOW INPUT BIAS CURRENT: 10pA (max)
  • WIDE SUPPLY RANGE: 1.8V to 5.5V
  • INPUT RANGE 200mV Beyond Rails
  • OUTPUT SWINGS TO 350mV OF RAILS
  • OUTPUT DRIVE CURRENT: 8mA
  • OPEN-LOOP GAIN: 90dB
  • MicroPACKAGES: SC70, SOT23-5, SOT23-8
  • APPLICATIONS
    • BATTERY PACKS AND POWER SUPPLIES
    • PORTABLE PHONES, PAGERS, AND CAMERAS
    • SOLAR-POWERED SYSTEMS
    • SMOKE, GAS, AND FIRE DETECTION SYSTEMS
    • REMOTE SENSORS
    • PCMCIA CARDS
    • DRIVING ANALOG-TO-DIGITAL (A/D) CONVERTERS
    • MicroPOWER FILTERS

All trademarks are the property of their respective owners.

The OPA349 and OPA2349 are ultra-low power operational amplifiers that provide 70kHz bandwidth with only 1µA quiescent current. These rail-to-rail input and output amplifiers are specifically designed for battery-powered applications. The input common-mode voltage range extends 200mV beyond the power-supply rails and the output swings to within 350mV of the rails, maintaining wide dynamic range. Unlike some micropower op amps, these parts are unity-gain stable and require no external compensation to achieve wide bandwidth. The OPA349 features a low input bias current that allows the use of large source and feedback resistors.

The OPA349 can be operated with power supplies from 1.8V to 5.5V with little change in performance, ensuring continuing superior performance even in low battery situations.

The OPA349 comes in miniature SOT23-5, SC70, and SO-8 surface-mount packages. The OPA2349 dual is available in SOT23-8, and SO-8 surface-mount packages. These tiny packages are ideal for use in high-density applications, such as PCMCIA cards, battery packs, and portable instruments.

The OPA349 is specified for 0°C to +70°C. The OPA2349 is specified for –40°C to +70°C.

The OPA349 and OPA2349 are ultra-low power operational amplifiers that provide 70kHz bandwidth with only 1µA quiescent current. These rail-to-rail input and output amplifiers are specifically designed for battery-powered applications. The input common-mode voltage range extends 200mV beyond the power-supply rails and the output swings to within 350mV of the rails, maintaining wide dynamic range. Unlike some micropower op amps, these parts are unity-gain stable and require no external compensation to achieve wide bandwidth. The OPA349 features a low input bias current that allows the use of large source and feedback resistors.

The OPA349 can be operated with power supplies from 1.8V to 5.5V with little change in performance, ensuring continuing superior performance even in low battery situations.

The OPA349 comes in miniature SOT23-5, SC70, and SO-8 surface-mount packages. The OPA2349 dual is available in SOT23-8, and SO-8 surface-mount packages. These tiny packages are ideal for use in high-density applications, such as PCMCIA cards, battery packs, and portable instruments.

The OPA349 is specified for 0°C to +70°C. The OPA2349 is specified for –40°C to +70°C.
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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 OPA349, OPA2349: 1uA, Rail-to-Rail, I/O, CMOS Operational Amplifiers 数据表 (Rev. B) 2004-1-7
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

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
评估板

DIP-ADAPTER-EVM — DIP 适配器评估模块

借助 DIP-Adapter-EVM 加快运算放大器的原型设计和测试，该 EVM 有助于快速轻松地连接小型表面贴装 IC 并且价格低廉。您可以使用随附的 Samtec 端子板连接任何受支持的运算放大器，或者将这些端子板直接连接至现有电路。

DIP-Adapter-EVM 套件支持六种常用的业界通用封装，包括：

  • D 和 U (SOIC-8)
  • PW (TSSOP-8)
  • DGK（MSOP-8、VSSOP-8）
  • DBV（SOT23-6、SOT23-5 和 SOT23-3）
  • DCK（SC70-6 和 SC70-5）
  • DRL (SOT563-6)
支持的产品和硬件
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评估板

DUAL-DIYAMP-EVM — Dual-channel universal do-it-yourself (DIY) amplifier circuit evaluation module for SOIC package

DIYAMP-EVM 是一个评估模块 (EVM) 系列，可为工程师和自制人员 (DIYer) 提供真实的放大器电路，使用户能够快速评估设计概念并验证仿真。该器件专为采用行业标准 SOIC-8 封装的双封装运算放大器而设计。它可实现各种电路配置，例如反相和同相放大器、Sallen Key 滤波器、多反馈滤波器、具有基准缓冲器的差动放大器、具有双反馈的 Riso、单端输入至差动输出、差动输入至差动输出、两个运算放大器仪表放大器和并联运算放大器。

DUAL-DIYAMP-EVM 让原型设计变得快速轻松，并使用常用的 0805 或 0603 表面贴装式元件。通过配置多种组合，此 EVM (...)

用户指南: PDF
支持的产品和硬件
有库存
限制：
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仿真模型

OPA2349 PSpice Model

SBOM648.ZIP (55 KB) - PSpice 模型
支持的产品和硬件
仿真模型

OPA2349 TINA-TI Reference Design

SBOM649.TSC (108 KB) - TINA-TI 参考设计
支持的产品和硬件
仿真模型

OPA2349 TINA-TI Spice Model

SBOM650.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
封装 引脚 CAD 符号、封装和 3D 模型
SOT-23 (DCN) 8 Ultra Librarian
SOIC (D) 8 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

订购和质量

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