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运算放大器 (op amps)
高速运算放大器 (GBW ≥ 50MHz)

OPA694

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宽带、低功耗、电流反馈放大器

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OPA694

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产品详情

Architecture Current FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 7 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12.6 GBW (typ) (MHz) 1500 BW at Acl (MHz) 1500 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 1700 Vn at flatband (typ) (nV√Hz) 2.1 Vn at 1 kHz (typ) (nV√Hz) 2.1 Iq per channel (typ) (mA) 5.8 Vos (offset voltage at 25°C) (max) (mV) 3 Rail-to-rail No Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 60 Input bias current (max) (pA) 20000000 Offset drift (typ) (µV/°C) 15 Iout (typ) (mA) 80 2nd harmonic (dBc) 68 3rd harmonic (dBc) 72 Frequency of harmonic distortion measurement (MHz) 5
Architecture Current FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 7 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12.6 GBW (typ) (MHz) 1500 BW at Acl (MHz) 1500 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 1700 Vn at flatband (typ) (nV√Hz) 2.1 Vn at 1 kHz (typ) (nV√Hz) 2.1 Iq per channel (typ) (mA) 5.8 Vos (offset voltage at 25°C) (max) (mV) 3 Rail-to-rail No Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 60 Input bias current (max) (pA) 20000000 Offset drift (typ) (µV/°C) 15 Iout (typ) (mA) 80 2nd harmonic (dBc) 68 3rd harmonic (dBc) 72 Frequency of harmonic distortion measurement (MHz) 5
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm) SOT-23 (DBV) 5 8.12 mm² (2.9 mm × 2.8 mm)
  • UNITY GAIN STABLE BANDWIDTH: 1.5GHz
  • HIGH GAIN OF 2V/V BANDWIDTH: 690MHz
  • LOW SUPPLY CURRENT: 5.8mA
  • HIGH SLEW RATE: 1700V/µsec
  • HIGH FULL-POWER BANDWIDTH: 675MHz
  • LOW DIFFERENTIAL GAIN/PHASE: 0.03%/0.015°
  • Pb-FREE AND GREEN SOT23-5 PACKAGE
  • APPLICATIONS
    • WIDEBAND VIDEO LINE DRIVER
    • MATRIX SWITCH BUFFER
    • DIFFERENTIAL RECEIVER
    • ADC DRIVER
    • IMPROVED REPLACEMENT FOR OPA658
  • UNITY GAIN STABLE BANDWIDTH: 1.5GHz
  • HIGH GAIN OF 2V/V BANDWIDTH: 690MHz
  • LOW SUPPLY CURRENT: 5.8mA
  • HIGH SLEW RATE: 1700V/µsec
  • HIGH FULL-POWER BANDWIDTH: 675MHz
  • LOW DIFFERENTIAL GAIN/PHASE: 0.03%/0.015°
  • Pb-FREE AND GREEN SOT23-5 PACKAGE
  • APPLICATIONS
    • WIDEBAND VIDEO LINE DRIVER
    • MATRIX SWITCH BUFFER
    • DIFFERENTIAL RECEIVER
    • ADC DRIVER
    • IMPROVED REPLACEMENT FOR OPA658

The OPA694 is an ultra-wideband, low-power, current feedback operational amplifier featuring high slew rate and low differential gain/phase errors. An improved output stage provides ±80mA output drive with < 1.5V output voltage headroom. Low supply current with > 500MHz bandwidth meets the requirements of high-density video routers. Being a current feedback design, the OPA694 holds its bandwidth to very high gains—at a gain of 10, the OPA694 will still provide 200MHz bandwidth.

RF applications can use the OPA694 as a low-power SAW pre-amplifier. Extremely high 3rd-order intercept is provided through 70MHz at much lower quiescent power than many typical RF amplifiers.

The OPA694 is available in an industry-standard pinout in both SO-8 and SOT23-5 packages.

The OPA694 is an ultra-wideband, low-power, current feedback operational amplifier featuring high slew rate and low differential gain/phase errors. An improved output stage provides ±80mA output drive with < 1.5V output voltage headroom. Low supply current with > 500MHz bandwidth meets the requirements of high-density video routers. Being a current feedback design, the OPA694 holds its bandwidth to very high gains—at a gain of 10, the OPA694 will still provide 200MHz bandwidth.

RF applications can use the OPA694 as a low-power SAW pre-amplifier. Extremely high 3rd-order intercept is provided through 70MHz at much lower quiescent power than many typical RF amplifiers.

The OPA694 is available in an industry-standard pinout in both SO-8 and SOT23-5 packages.
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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 Wideband, Low Power, Current Feedback Operational Amplifier 数据表 (Rev. G) 2010-1-15
技术文章 3 common questions when designing with high-speed amplifiers PDF | HTML 2020-7-17
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 RLC Filter Design for ADC Interface Applications (Rev. A) 2015-5-13
用户指南 DEM-OPA-SO-1B User's Guide (Rev. D) 2012-4-12
用户指南 DEM-OPA-SOT-1B User's Guide (Rev. B) 2006-4-12
模拟设计期刊 Expanding the usability of current-feedback amplifiers 2005-2-28
模拟设计期刊 Active filters using current-feedback amplifiers 2005-2-25
应用手册 Noise Analysis for High Speed Op Amps (Rev. A) 2005-1-17
应用手册 Stabilizing Current-Feedback Op Amps While Optimizing Circuit Performance 2004-4-28
应用手册 Measuring Board Parasitics in High-Speed Analog Design 2003-7-7
应用手册 Current Feedback Amplifiers: Review, Stability Analysis, and Applications 2000-11-20

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

DEM-OPA-SO-1B — 采用 SO-8（同相）封装的单路运算放大器评估模块

The DEM-OPA-SO-1B demonstration fixture in the non-inverting configuration helps designers evaluate the operation and performance of TI's single high speed, wideband operational amplifiers. This unpopulated PC board is compatible with products offered in the 8-lead SOIC (D) package.

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评估板

DEM-OPA-SOT-1B — 采用 SOT23-5/6（同相）封装的单路运算放大器评估模块

The DEM-OPA-SOT-1B demonstration fixture in the non-inverting configuration helps designers evaluate the operation and performance of TI's single high speed, wideband operational amplifiers. This unpopulated PC board is compatible with products offered in the SOT23 (DBV) package.

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仿真模型

OPA694 PSpice Model (Rev. B)

SBOC068B.ZIP (22 KB) - PSpice 模型
支持的产品和硬件
仿真模型

OPAy694 Family TINA-TI Reference Design (Rev. A)

SBOM446A.TSC (2316 KB) - TINA-TI 参考设计
支持的产品和硬件
仿真模型

OPAy694 Family TINA-TI Spice Model (Rev. A)

SBOM445A.ZIP (5 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
SOIC (D) 8 Ultra Librarian
SOT-23 (DBV) 5 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

订购和质量

支持和培训

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