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运算放大器 (op amps)
精密运算放大器 (Vos<1mV)

OPA334

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具有关断功能的单路、0.05uV/°C（最大值）、单电源 CMOS 运算放大器

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数据表

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open-in-new 比较替代产品
功能优于比较器件，可直接替换。
OPA383 正在供货 单通道、零漂移、微功耗 (65μA)、高速度功率比 (2.5MHz) RRIO 运算放大器 OPA383 offers improvements in Vos drift, offers RRIO, consumes less power, lower noise, and lower bias current.

OPA334

正在供货
数据表 立即订购

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) 2.7 Vos (offset voltage at 25°C) (max) (mV) 0.005 Offset drift (typ) (µV/°C) 0.02 Input bias current (max) (pA) 200 GBW (typ) (MHz) 2 Features EMI Hardened, Shutdown, Zero Drift Slew rate (typ) (V/µs) 1.6 Rail-to-rail In to V-, Out Iq per channel (typ) (mA) 0.285 Vn at 1 kHz (typ) (nV√Hz) 60 CMRR (typ) (dB) 130 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.05 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) -1.5 Output swing headroom (to negative supply) (typ) (V) 0.015 Output swing headroom (to positive supply) (typ) (V) -0.015
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) 2.7 Vos (offset voltage at 25°C) (max) (mV) 0.005 Offset drift (typ) (µV/°C) 0.02 Input bias current (max) (pA) 200 GBW (typ) (MHz) 2 Features EMI Hardened, Shutdown, Zero Drift Slew rate (typ) (V/µs) 1.6 Rail-to-rail In to V-, Out Iq per channel (typ) (mA) 0.285 Vn at 1 kHz (typ) (nV√Hz) 60 CMRR (typ) (dB) 130 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.05 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) -1.5 Output swing headroom (to negative supply) (typ) (V) 0.015 Output swing headroom (to positive supply) (typ) (V) -0.015
SOT-23 (DBV) 6 8.12 mm² (2.9 mm × 2.8 mm)
  • LOW OFFSET VOLTAGE:5 µV (max)
  • ZERO DRIFT: 0.05 µV/°C (max)
  • QUIESCENT CURRENT: 285 µA
  • SINGLE-SUPPLY OPERATION
  • SINGLE AND DUAL VERSIONS
  • SHUTDOWN
  • MicroSIZE PACKAGES
  • APPLICATIONS
    • TRANSDUCER APPLICATIONS
    • TEMPERATURE MEASUREMENT
    • ELECTRONIC SCALES
    • MEDICAL INSTRUMENTATION
    • BATTERY-POWERED INSTRUMENTS
    • HANDHELD TEST EQUIPMENT

All trademarks are the property of their respective owners.
  • LOW OFFSET VOLTAGE:5 µV (max)
  • ZERO DRIFT: 0.05 µV/°C (max)
  • QUIESCENT CURRENT: 285 µA
  • SINGLE-SUPPLY OPERATION
  • SINGLE AND DUAL VERSIONS
  • SHUTDOWN
  • MicroSIZE PACKAGES
  • APPLICATIONS
    • TRANSDUCER APPLICATIONS
    • TEMPERATURE MEASUREMENT
    • ELECTRONIC SCALES
    • MEDICAL INSTRUMENTATION
    • BATTERY-POWERED INSTRUMENTS
    • HANDHELD TEST EQUIPMENT

All trademarks are the property of their respective owners.

The OPA334 and OPA335 series of CMOS operational amplifiers use auto-zeroing techniques to simultaneously provide very low offset voltage (5µV max), and near zero drift over time and temperature. These miniature, high-precision, low quiescent current amplifiers offer high input impedance and rail-to-rail output swing. Single or dual supplies as low as +2.7V (±1.35V) and up to +5.5V (±2.75V) may be used. These op amps are optimized for low-voltage, single-supply operation.

The OPA334 family includes a shutdown mode. Under logic control, the amplifiers can be switched from normal operation to a standby current of 2µA. When the Enable pin is connected high, the amplifier is active. Connecting Enable low disables the amplifier, and places the output in a high impedance state.

The OPA334 (single version with shutdown) comes in MicroSIZE SOT23-6. The OPA335 (single version without shutdown) is available in SOT23-5, and SO-8. The OPA2334 (dual version with shutdown) comes in MicroSIZE MSOP-10. The OPA2335 (dual version without shutdown) is offered in the MSOP-8 and SO-8 packages. All versions are specified for operation from –40°C to +125°C.

The OPA334 and OPA335 series of CMOS operational amplifiers use auto-zeroing techniques to simultaneously provide very low offset voltage (5µV max), and near zero drift over time and temperature. These miniature, high-precision, low quiescent current amplifiers offer high input impedance and rail-to-rail output swing. Single or dual supplies as low as +2.7V (±1.35V) and up to +5.5V (±2.75V) may be used. These op amps are optimized for low-voltage, single-supply operation.

The OPA334 family includes a shutdown mode. Under logic control, the amplifiers can be switched from normal operation to a standby current of 2µA. When the Enable pin is connected high, the amplifier is active. Connecting Enable low disables the amplifier, and places the output in a high impedance state.

The OPA334 (single version with shutdown) comes in MicroSIZE SOT23-6. The OPA335 (single version without shutdown) is available in SOT23-5, and SO-8. The OPA2334 (dual version with shutdown) comes in MicroSIZE MSOP-10. The OPA2335 (dual version without shutdown) is offered in the MSOP-8 and SO-8 packages. All versions are specified for operation from –40°C to +125°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 0.05uV/C max, Single-Supply CMOS Op Amps Zero-Drift 数据表 (Rev. D) 2003-6-12
应用简报 失调电压校正方法：激光修整、e-Trim™ 和斩波器 (Rev. D) PDF | HTML 英语版 (Rev.D) PDF | HTML 2024-12-18
应用简报 零漂移放大器：特性和优势 (Rev. C) PDF | HTML 英语版 (Rev.C) 2021-5-25
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 OPA334, OPA2334, OPA335, OPA2335 EMI Immunity Performance (Rev. A) 2012-10-31

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
仿真模型

OPA334 TINA-TI Spice Model (Rev. B)

SBOM272A (6 KB) - TINA-TI Spice 模型
支持的产品和硬件
仿真模型

OPAx335 PSpice Model (Rev. F)

SBOC002F.ZIP (28 KB) - PSpice 模型
支持的产品和硬件
仿真模型

OPAx335 TINA-TI Reference Design (Rev. D)

SBOM746D (347 KB) - TINA-TI 参考设计
支持的产品和硬件
仿真模型

OPAx335 TINA-TI Spice Model (Rev. D)

SBOM745D.ZIP (11 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
参考设计

TIDA-00587 — 充电器 Booster Pack 参考设计

TIDA-00587 参考设计是一款设计为 Booster Pack 以安装到 TI LaunchPad 开发板上的充电器。在开发过程中使用此板将缩短 bq24250 充电器 IC 的设计和测试时间。您可以为自己的电池充电，也可以使用板载电子负载为电池放电。因此，您可以执行循环测试，以测量使用 bq24250 充电器充电时的电池性能和功能。

支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
SOT-23 (DBV) 6 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

订购和质量

推荐产品可能包含与 TI 此产品相关的参数、评估模块或参考设计。

支持和培训

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