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精密运算放大器 (Vos<1mV)

OPA202

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低噪声（0.2µVPP，9nV/√Hz）、高容性驱动 (25nF)、超 β、精密运算放大器

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OPA202

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产品详情

Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.5 Vos (offset voltage at 25°C) (max) (mV) 0.2 Offset drift (typ) (µV/°C) 0.5 Input bias current (max) (pA) 2000 GBW (typ) (MHz) 1 Features Cost Optimized, High Cload Drive, Super Beta Slew rate (typ) (V/µs) 0.35 Rail-to-rail No Iq per channel (typ) (mA) 0.58 Vn at 1 kHz (typ) (nV√Hz) 9 CMRR (typ) (dB) 148 Rating Catalog Operating temperature range (°C) -40 to 120 Iout (typ) (A) 0.035 Architecture Bipolar Input common mode headroom (to negative supply) (typ) (V) 1.5 Input common mode headroom (to positive supply) (typ) (V) -1.5 Output swing headroom (to negative supply) (typ) (V) 0.65 Output swing headroom (to positive supply) (typ) (V) -0.65 THD + N at 1 kHz (typ) (%) 0.0002
Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.5 Vos (offset voltage at 25°C) (max) (mV) 0.2 Offset drift (typ) (µV/°C) 0.5 Input bias current (max) (pA) 2000 GBW (typ) (MHz) 1 Features Cost Optimized, High Cload Drive, Super Beta Slew rate (typ) (V/µs) 0.35 Rail-to-rail No Iq per channel (typ) (mA) 0.58 Vn at 1 kHz (typ) (nV√Hz) 9 CMRR (typ) (dB) 148 Rating Catalog Operating temperature range (°C) -40 to 120 Iout (typ) (A) 0.035 Architecture Bipolar Input common mode headroom (to negative supply) (typ) (V) 1.5 Input common mode headroom (to positive supply) (typ) (V) -1.5 Output swing headroom (to negative supply) (typ) (V) 0.65 Output swing headroom (to positive supply) (typ) (V) -0.65 THD + N at 1 kHz (typ) (%) 0.0002
SOT-23 (DBV) 5 8.12 mm² (2.9 mm × 2.8 mm) VSSOP (DGK) 8 14.7 mm² (3 mm × 4.9 mm) SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
  • Precision super-beta performance:
    • Low offset voltage: 200 µV (maximum)
    • Ultra-low drift: 1 µV/°C (maximum)
  • Excellent efficiency:
    • Quiescent current: 580 µA (typical)
    • Gain-bandwidth product: 1 MHz
    • Low input voltage noise: 9 nV/√Hz
  • Ease of use, design simplicity:
    • Heavy capacitive load drive: 5-µs settling time with 25 nF
    • Ultra-high input impedance: 3000 GΩ and
      0.5 pF
    • EMI hardened, thermal, and short-circuit protection
  • Stable Performance:
    • High CMRR and AOL: 126 dB (minimum)
    • High PSRR: 126 dB (minimum)
  • Low bias current: 2 nA (maximum)
  • Low 0.1-Hz to 10-Hz noise: 0.2 µVPP
  • Wide supply voltage: ±2.25 V to ±18 V
  • Replaces OP-07 and OP-27
  • Precision super-beta performance:
    • Low offset voltage: 200 µV (maximum)
    • Ultra-low drift: 1 µV/°C (maximum)
  • Excellent efficiency:
    • Quiescent current: 580 µA (typical)
    • Gain-bandwidth product: 1 MHz
    • Low input voltage noise: 9 nV/√Hz
  • Ease of use, design simplicity:
    • Heavy capacitive load drive: 5-µs settling time with 25 nF
    • Ultra-high input impedance: 3000 GΩ and
      0.5 pF
    • EMI hardened, thermal, and short-circuit protection
  • Stable Performance:
    • High CMRR and AOL: 126 dB (minimum)
    • High PSRR: 126 dB (minimum)
  • Low bias current: 2 nA (maximum)
  • Low 0.1-Hz to 10-Hz noise: 0.2 µVPP
  • Wide supply voltage: ±2.25 V to ±18 V
  • Replaces OP-07 and OP-27

The OPA202, OPA2202, and OPA4202 (OPAx202) are a family of devices built on TI’s industry-leading precision super-beta, complementary, bipolar semiconductor process. This process offers ultra-low flicker noise, low offset voltage, low offset voltage temperature drift, and excellent linearity with common-mode and power-supply variation. These devices offer an exceptional combination of dc precision, heavy capacitive load drive, and protection against external EMI, thermal, and short-circuit events.

The supply current is 580 µA at ±18 V. The OPAx202 do not exhibit phase inversion, and the series is stable with high capacitive loads. The OPAx202 are fully specified with a temperature range from –40°C to +105°C.

The OPA202, OPA2202, and OPA4202 (OPAx202) are a family of devices built on TI’s industry-leading precision super-beta, complementary, bipolar semiconductor process. This process offers ultra-low flicker noise, low offset voltage, low offset voltage temperature drift, and excellent linearity with common-mode and power-supply variation. These devices offer an exceptional combination of dc precision, heavy capacitive load drive, and protection against external EMI, thermal, and short-circuit events.

The supply current is 580 µA at ±18 V. The OPAx202 do not exhibit phase inversion, and the series is stable with high capacitive loads. The OPAx202 are fully specified with a temperature range from –40°C to +105°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 OPAx202 Precision, Low-Noise, Heavy Capacitive Drive, 36-V Operational Amplifiers 数据表 (Rev. H) PDF | HTML 2020-5-20
白皮书 运算放大器稳定性理论及补偿方法 PDF | HTML 英语版 PDF | HTML 2026-1-9
应用手册 使用超 β 全差分放大器优化噪声和功耗 PDF | HTML 英语版 PDF | HTML 2021-11-22
应用手册 AN-31 放大器电路集合 (Rev. D) PDF | HTML 英语版 (Rev.D) PDF | HTML 2021-6-30
应用简报 Green-Williams-Lis：改进的运算放大器 Spice 模型 英语版 2019-4-4

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

OPAx202 PSpice Model (Rev. D)

SBOMAH6D.ZIP (30 KB) - PSpice 模型
支持的产品和硬件
仿真模型

OPAx202 TINA-TI Reference Design (Rev. C)

SBOMAH5C (346 KB) - TINA-TI 参考设计
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仿真模型

OPAx202 TINA-TI SPICE Model (Rev. C)

SBOMAH4C.ZIP (10 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

SBOC555 — Simulation for Positive Output Voltage Reference in AN-31

支持的产品和硬件
设计工具

SBOC557 — Simulation for Negative Output Voltage Reference in AN-31

支持的产品和硬件
参考设计

TIDA-010237 — 交流和直流电流故障检测参考设计

该参考设计可检测 mA 级交流和直流接地故障电流。使用 DRV8220 H 桥实现自振电路，该 H 桥会驱动磁芯进入和退出饱和状态。此外，还采用了有源滤波器电路来识别故障电流信号和电平。
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
VSSOP (DGK) 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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