产品详情

Architecture FET / CMOS Input, Voltage FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 10 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 32 GBW (typ) (MHz) 210 BW at Acl (MHz) 325 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 1000 Vn at flatband (typ) (nV√Hz) 7 Vn at 1 kHz (typ) (nV√Hz) 7 Iq per channel (typ) (mA) 11.5 Vos (offset voltage at 25°C) (max) (mV) 0.5 Rail-to-rail No Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 95 Input bias current (max) (pA) 100 Offset drift (typ) (µV/°C) 2.5 Iout (typ) (mA) 95 2nd harmonic (dBc) 76 3rd harmonic (dBc) 94 Frequency of harmonic distortion measurement (MHz) 5
Architecture FET / CMOS Input, Voltage FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 10 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 32 GBW (typ) (MHz) 210 BW at Acl (MHz) 325 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 1000 Vn at flatband (typ) (nV√Hz) 7 Vn at 1 kHz (typ) (nV√Hz) 7 Iq per channel (typ) (mA) 11.5 Vos (offset voltage at 25°C) (max) (mV) 0.5 Rail-to-rail No Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 95 Input bias current (max) (pA) 100 Offset drift (typ) (µV/°C) 2.5 Iout (typ) (mA) 95 2nd harmonic (dBc) 76 3rd harmonic (dBc) 94 Frequency of harmonic distortion measurement (MHz) 5
HSOIC (DDA) 8 29.4 mm² 4.9 x 6 HVSSOP (DGN) 8 14.7 mm² 3 x 4.9 SOIC (D) 8 29.4 mm² 4.9 x 6
  • High Bandwidth:
    • 325 MHz in Unity Gain
    • 210 MHz Gain Bandwidth Product
  • High Slew Rate:
    • 900 V/µs (G = 2)
    • 1000 V/µs (G = 5)
  • Low Distortion of –76 dB, SFDR at 5 MHz
  • Maximum Input Bias Current: 100 pA
  • Input Voltage Noise: 7 nV/√Hz
  • Maximum Input Offset Voltage: 500 µV at 25°C
  • Low Offset Drift: 2.5 µV/°C
  • Input Impedance: 109 || 3.9 pF
  • Wide Supply Range: ± 5 V to ± 15 V
  • High Output Current: 95 mA
  • High Bandwidth:
    • 325 MHz in Unity Gain
    • 210 MHz Gain Bandwidth Product
  • High Slew Rate:
    • 900 V/µs (G = 2)
    • 1000 V/µs (G = 5)
  • Low Distortion of –76 dB, SFDR at 5 MHz
  • Maximum Input Bias Current: 100 pA
  • Input Voltage Noise: 7 nV/√Hz
  • Maximum Input Offset Voltage: 500 µV at 25°C
  • Low Offset Drift: 2.5 µV/°C
  • Input Impedance: 109 || 3.9 pF
  • Wide Supply Range: ± 5 V to ± 15 V
  • High Output Current: 95 mA

The THS4631 is a high-speed, FET-input operational amplifier designed for applications requiring wideband operation, high-input impedance, and high-power supply voltages. By providing a 210-MHz gain bandwidth product, ±15-V supply operation, and 100-pA input bias current, the THS4631 is capable of simultaneous wideband transimpedance gain and large output signal swing. The fast 1000 V/µs slew rate allows for fast settling times and good harmonic distortion at high frequencies. Low current and voltage noise allow amplification of extremely low-level input signals while still maintaining a large signal-to-noise ratio.

The characteristics of the THS4631 make it ideally suited for use as a wideband photodiode amplifier. Photodiode output current is a prime candidate for transimpedance amplification as shown below. Other potential applications include test and measurement systems requiring high-input impedance, ADC and DAC buffering, high-speed integration, and active filtering.

The THS4631 is offered in an 8-pin SOIC (D), and the 8-pin SOIC (DDA) and MSOP (DGN) with PowerPAD™ package.

The THS4631 is a high-speed, FET-input operational amplifier designed for applications requiring wideband operation, high-input impedance, and high-power supply voltages. By providing a 210-MHz gain bandwidth product, ±15-V supply operation, and 100-pA input bias current, the THS4631 is capable of simultaneous wideband transimpedance gain and large output signal swing. The fast 1000 V/µs slew rate allows for fast settling times and good harmonic distortion at high frequencies. Low current and voltage noise allow amplification of extremely low-level input signals while still maintaining a large signal-to-noise ratio.

The characteristics of the THS4631 make it ideally suited for use as a wideband photodiode amplifier. Photodiode output current is a prime candidate for transimpedance amplification as shown below. Other potential applications include test and measurement systems requiring high-input impedance, ADC and DAC buffering, high-speed integration, and active filtering.

The THS4631 is offered in an 8-pin SOIC (D), and the 8-pin SOIC (DDA) and MSOP (DGN) with PowerPAD™ package.

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类型 标题 下载最新的英语版本 日期
* 数据表 High-Voltage High Slew Rate Wideband FET-Input Op Amp 数据表 (Rev. B) 2011年 8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 英语版 2018年 1月 31日
应用手册 Transimpedance Amplifiers (TIA): Choosing the Best Amplifier for the job (Rev. A) 2017年 5月 16日
应用手册 Transimpedance Considerations for High-Speed Operational Amplifiers 2009年 11月 22日
应用手册 Noise Analysis for High Speed Op Amps (Rev. A) 2005年 1月 17日

设计和开发

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评估板

THS4631DDAEVM — THS4631DDAEVM 评估模块

THS4631EVM's is an evaluation Module for the DDA (8 pin SOIC power pad)  package.

The THS4631EVM's are designed to demonstrate the functionality and versatility of the device. The EVM is ready for power, signal source, and test instruments.

The THS4631 evaluation module (EVM) User's Guide is included (...)

TI.com 上无现货
评估板

THS4631DGNEVM — THS4631DGNEVM 评估模块

THS4631EVM's is an evaluation Module for the DGN (8-pin MSOP power pad) package.

The THS4631EVM's are designed to demonstrate the functionality and versatility of the device. The EVM is ready for power, signal source, and test instruments.

The THS4631 evaluation module (EVM) User's Guide is included (...)

TI.com 上无现货
仿真模型

THS4631 PSpice Model (Rev. E)

SLOC051E.ZIP (24 KB) - PSpice Model
仿真模型

THS4631 TINA-TI Reference Design (Rev. B)

SLOC127B.TSC (20 KB) - TINA-TI Reference Design
仿真模型

THS4631 TINA-TI Spice Model (Rev. A)

SLOM248A.ZIP (4 KB) - TINA-TI Spice Model
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。
计算工具

VOLT-DIVIDER-CALC — Voltage divider calculation tool

The voltage divider calculation tool (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. VOLT-DIVIDER-CALC can also be used to (...)
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 (...)
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
英语版 (Rev.A): PDF
封装 引脚 CAD 符号、封装和 3D 模型
HSOIC (DDA) 8 Ultra Librarian
HVSSOP (DGN) 8 Ultra Librarian
SOIC (D) 8 Ultra Librarian

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
  • 鉴定摘要
  • 持续可靠性监测
包含信息:
  • 制造厂地点
  • 封装厂地点

支持和培训

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