主页 放大器 运算放大器 (op amps) 高速运算放大器 (GBW ≥ 50MHz)
主页
放大器
运算放大器 (op amps)
高速运算放大器 (GBW ≥ 50MHz)

OPA683

正在供货

具有禁用功能的超低功耗电流反馈放大器

立即订购
数据表

OPA683

正在供货
数据表 立即订购

产品详情

Architecture Current FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12 GBW (typ) (MHz) 145 BW at Acl (MHz) 145 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 210 Vn at flatband (typ) (nV√Hz) 4.4 Vn at 1 kHz (typ) (nV√Hz) 4.4 Iq per channel (typ) (mA) 0.79 Vos (offset voltage at 25°C) (max) (mV) 3.5 Rail-to-rail No Features Shutdown Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 56 Input bias current (max) (pA) 4000000 Offset drift (typ) (µV/°C) 12 Iout (typ) (mA) 110 2nd harmonic (dBc) 58 3rd harmonic (dBc) 68 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) 5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12 GBW (typ) (MHz) 145 BW at Acl (MHz) 145 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 210 Vn at flatband (typ) (nV√Hz) 4.4 Vn at 1 kHz (typ) (nV√Hz) 4.4 Iq per channel (typ) (mA) 0.79 Vos (offset voltage at 25°C) (max) (mV) 3.5 Rail-to-rail No Features Shutdown Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 56 Input bias current (max) (pA) 4000000 Offset drift (typ) (µV/°C) 12 Iout (typ) (mA) 110 2nd harmonic (dBc) 58 3rd harmonic (dBc) 68 Frequency of harmonic distortion measurement (MHz) 5
SOIC (D) 8 29.4 mm² 4.9 x 6 SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8
  • REDUCED BANDWIDTH CHANGE VERSUS GAIN
  • 150MHz BANDWIDTH G = +2
  • > 90MHz BANDWIDTH TO GAIN > +10
  • LOW DISTORTION: < –69dBc at 5MHz
  • HIGH OUTPUT CURRENT: 110mA
  • SINGLE +5V TO +12V SUPPLY OPERATION
  • DUAL ±2.5V TO ±6V SUPPLY OPERATION
  • LOW SUPPLY CURRENT: 0.94mA
  • LOW SHUTDOWN CURRENT: 100 µA
  • APPLICATIONS
    • LOW POWER BROADCAST VIDEO DRIVERS
    • EQUALIZING FILTERS
    • SAW FILTER HIGH GAIN POST AMPLIFIERS
    • SHORT LOOP ADSL CO DRIVERS
    • MULTICHANNEL SUMMING AMPLIFIERS
    • PROFESSIONAL CAMERAS
    • ADC INPUT DRIVERS

All trademarks are the property of their respective owners.
  • REDUCED BANDWIDTH CHANGE VERSUS GAIN
  • 150MHz BANDWIDTH G = +2
  • > 90MHz BANDWIDTH TO GAIN > +10
  • LOW DISTORTION: < –69dBc at 5MHz
  • HIGH OUTPUT CURRENT: 110mA
  • SINGLE +5V TO +12V SUPPLY OPERATION
  • DUAL ±2.5V TO ±6V SUPPLY OPERATION
  • LOW SUPPLY CURRENT: 0.94mA
  • LOW SHUTDOWN CURRENT: 100 µA
  • APPLICATIONS
    • LOW POWER BROADCAST VIDEO DRIVERS
    • EQUALIZING FILTERS
    • SAW FILTER HIGH GAIN POST AMPLIFIERS
    • SHORT LOOP ADSL CO DRIVERS
    • MULTICHANNEL SUMMING AMPLIFIERS
    • PROFESSIONAL CAMERAS
    • ADC INPUT DRIVERS

All trademarks are the property of their respective owners.

The OPA683 provides a new level of performance in very low-power, wideband, current feedback amplifiers. This CFBplus amplifier is among the first to use an internally closed-loop input buffer stage that enhances performance significantly over earlier low-power CFB amplifiers. While retaining the benefits of very low power operation, this new architecture provides many of the advantages of a more ideal CFB amplifier. The closed-loop input stage buffer gives a very low and linearized impedance path at the inverting input to sense the feedback error current. This improved inverting input impedance gives exceptional bandwidth retention to much higher gains and improved harmonic distortion over earlier solutions limited by inverting input linearity. Beyond simple high gain applications, the OPA683 CFBplus amplifier can allow the gain setting element to be set with considerable freedom from amplifier bandwidth interaction. This allows frequency response peaking elements to be added, multiple input inverting summing circuits to have greater bandwidth, and low-power line drivers to meet the demanding requirements of studio cameras and broadcast video.

The output capability for the OPA683 also sets a new mark in performance for very low-power current feedback amplifiers. Delivering a full ±4Vp-p swing on ±5V supplies, the OPA683 also has the output current to support this swing into a 100 load. This minimal output headroom requirement is complemented by a similar 1.2V input stage headroom giving exceptional capability for single +5V operation.

The OPA683’s low 0.94mA supply current is precisely trimmed at 25°C. This trim, along with low shift over temperature and supply voltage, gives a very robust design over a wide range of operating conditions. System power may be further reduced by using the optional disable control pin. Leaving this disable pin open, or holding it HIGH, gives normal operation. If pulled LOW, the OPA683 supply current drops to less than 100µA while the I/O pins go to a high impedance state.

The OPA683 provides a new level of performance in very low-power, wideband, current feedback amplifiers. This CFBplus amplifier is among the first to use an internally closed-loop input buffer stage that enhances performance significantly over earlier low-power CFB amplifiers. While retaining the benefits of very low power operation, this new architecture provides many of the advantages of a more ideal CFB amplifier. The closed-loop input stage buffer gives a very low and linearized impedance path at the inverting input to sense the feedback error current. This improved inverting input impedance gives exceptional bandwidth retention to much higher gains and improved harmonic distortion over earlier solutions limited by inverting input linearity. Beyond simple high gain applications, the OPA683 CFBplus amplifier can allow the gain setting element to be set with considerable freedom from amplifier bandwidth interaction. This allows frequency response peaking elements to be added, multiple input inverting summing circuits to have greater bandwidth, and low-power line drivers to meet the demanding requirements of studio cameras and broadcast video.

The output capability for the OPA683 also sets a new mark in performance for very low-power current feedback amplifiers. Delivering a full ±4Vp-p swing on ±5V supplies, the OPA683 also has the output current to support this swing into a 100 load. This minimal output headroom requirement is complemented by a similar 1.2V input stage headroom giving exceptional capability for single +5V operation.

The OPA683’s low 0.94mA supply current is precisely trimmed at 25°C. This trim, along with low shift over temperature and supply voltage, gives a very robust design over a wide range of operating conditions. System power may be further reduced by using the optional disable control pin. Leaving this disable pin open, or holding it HIGH, gives normal operation. If pulled LOW, the OPA683 supply current drops to less than 100µA while the I/O pins go to a high impedance state.
open-in-new 查找其他 高速运算放大器 (GBW ≥ 50MHz)
下载 观看带字幕的视频 视频

您可能感兴趣的相似产品

open-in-new 比较替代产品
功能与比较器件相同且具有相同引脚
LMH6723 正在供货 单通道 370MHz 1mA 电流反馈放大器 Wider bandwidth (BW) (370 MHz), slew rate (600 V/µs) and distortion

技术文档

star =有关此产品的 TI 精选热门文档
未找到结果。请清除搜索，并重试。
查看全部 21
类型 项目标题 下载最新的英语版本 日期
* 数据表 Very Low-Power, Current Feedback Operational Amplifier with Disable 数据表 (Rev. E) 2008年 7月 2日
技术文章 3 common questions when designing with high-speed amplifiers 2020年 7月 17日
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 下载英文版本 2018年 1月 31日
应用手册 RLC Filter Design for ADC Interface Applications (Rev. A) 2015年 5月 13日
应用手册 Wideband Complementary Current Output DAC Single-Ended Interface (Rev. A) 2015年 5月 8日
技术文章 High-gain, high-bandwidth… how can I get it all? 2013年 1月 25日
用户指南 DEM-OPA-SO-1A User's Guide (Rev. B) 2012年 4月 12日
用户指南 DEM-OPA-SOT-1A User's Guide (Rev. B) 2012年 4月 12日
应用手册 A Numerical Solution to an Analog Problem 2010年 4月 25日
应用手册 Making the Most of a Low-Power, High-Speed Operational Amplifier 2009年 11月 22日
应用手册 所选封装材料的热学和电学性质 2008年 10月 16日
应用手册 高速数据转换 下载英文版本 2008年 10月 16日
用户指南 DEM-OPA-SOT-1A User's Guide (Rev. A) 2006年 3月 22日
用户指南 DEM-OPA-SO-1A User's Guide (Rev. A) 2006年 3月 16日
模拟设计期刊 Expanding the usability of current-feedback amplifiers 2005年 2月 28日
模拟设计期刊 Active filters using current-feedback amplifiers 2005年 2月 25日
应用手册 Noise Analysis for High Speed Op Amps (Rev. A) 2005年 1月 17日
应用手册 Stabilizing Current-Feedback Op Amps While Optimizing Circuit Performance 2004年 4月 28日
应用手册 ADS5500, OPA695: PC Board Layout for Low Distortion High-Speed ADC Drivers 2004年 4月 22日
应用手册 Measuring Board Parasitics in High-Speed Analog Design 2003年 7月 7日
应用手册 Current Feedback Amplifiers: Review, Stability Analysis, and Applications 2000年 11月 20日

设计和开发

如需其他信息或资源，请查看下方列表，点击标题即可进入详情页面。

评估板

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

The DEM-OPA-SO-1A demonstration fixture helps designers evaluate the operation and performance of TI's High Speed, Wide Bandwidth Operational Amplifiers. This unpopulated PC board is compatible with products offered in the 8-lead SOIC (D) package.

用户指南: PDF
TI.com 上无现货
评估板

DEM-OPA-SOT-1A — 采用 5 引脚和 6 引脚 SOT-23 封装的单路运算放大器评估模块

DEM-OPA-SOT-1A 是一款用于评估高速高带宽运算放大器运行情况和性能的演示板。这款未组装的 PC 板与采用 small-outline transistor (SOT) DBV 封装的产品兼容。

用户指南: PDF
TI.com 上无现货
仿真模型

OPA683 PSpice Model (Rev. B)

SBOM145B.ZIP (39 KB) - PSpice Model
下载
仿真模型

OPA683 TINA-TI Reference Design (Rev. C)

SBOC122C.TSC (100 KB) - TINA-TI Reference Design
下载
仿真模型

OPA683 TINA-TI Spice Model (Rev. A)

SBOM197A.ZIP (5 KB) - TINA-TI Spice Model
下载
计算工具

ANALOG-ENGINEER-CALC — 模拟工程师计算器

模拟工程师计算器旨在加快模拟电路设计工程师经常使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的列表（从使用反馈电阻器设置运算放大器增益到为稳定模数转换器 (ADC) 驱动器缓冲器电路选择合适的电路设计元件）。除了可用作单独的工具之外，该计算器还能够很好地与模拟工程师口袋参考书中所述的概念配合使用。
下载
计算工具

VOLT-DIVIDER-CALC — 分压器确定一组分压电阻

VOLT-DIVIDER-CALC quickly determines a set of resistors for a voltage divider. This KnowledgeBase Javascript utility can be used to find a set of resistors for a voltage divider to achieve the desired output voltage. This calculator can also be used to design non-inverting attentuation circuits.

(...)

立即设计
模拟工具

PSPICE-FOR-TI — 适用于 TI 设计和模拟工具的 PSpice®

PSpice® for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence® 的模拟分析引擎。PSpice for TI 可免费使用，包括业内超大的模型库之一，涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。

借助 PSpice for TI 的设计和仿真环境及其内置的模型库，您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案，然后再进行布局和制造，可缩短产品上市时间并降低开发成本。

在 PSpice for TI 设计和仿真工具中，您可以搜索 TI (...)
发送申请
模拟工具

TINA-TI — 基于 SPICE 的模拟仿真程序

TINA-TI 提供了 SPICE 所有的传统直流、瞬态和频域分析以及更多。TINA 具有广泛的后处理功能，允许您按照希望的方式设置结果的格式。虚拟仪器允许您选择输入波形、探针电路节点电压和波形。TINA 的原理图捕获非常直观 - 真正的“快速入门”。

TINA-TI 安装需要大约 500MB。直接安装，如果想卸载也很容易。我们相信您肯定会爱不释手。

TINA 是德州仪器 (TI) 专有的 DesignSoft 产品。该免费版本具有完整的功能，但不支持完整版 TINA 所提供的某些其他功能。

如需获取可用 TINA-TI 模型的完整列表，请参阅：SpiceRack - 完整列表 

需要 HSpice (...)

用户指南: PDF
下载英文版本 (Rev.A): PDF
了解详情
封装 引脚数 下载
SOIC (D) 8 了解详情
SOT-23 (DBV) 6 了解详情
应遵守 TI 的评估模块标准条款与条件.

订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 认证摘要
  • 持续可靠性监测

支持与培训

视频