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THS4509

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1.9GHz、宽带、低噪声、低失真、全差分放大器

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数据表

THS4509

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产品详情

Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 3 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.25 BW at Acl (MHz) 2000 Acl, min spec gain (V/V) 2 Slew rate (typ) (V/µs) 6600 Architecture Bipolar, Fully Differential ADC Driver Vn at flatband (typ) (nV√Hz) 1.9 Iq per channel (typ) (mA) 37.7 Rail-to-rail No Vos (offset voltage at 25°C) (max) (mV) 4 Operating temperature range (°C) -40 to 85 Iout (typ) (mA) 96 2nd harmonic (dBc) 104 3rd harmonic (dBc) 108 Frequency of harmonic distortion measurement (MHz) 10 GBW (typ) (MHz) 3000 Input bias current (max) (pA) 15500000 Features Decompensated, Shutdown CMRR (typ) (dB) 90 Rating Catalog
Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 3 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.25 BW at Acl (MHz) 2000 Acl, min spec gain (V/V) 2 Slew rate (typ) (V/µs) 6600 Architecture Bipolar, Fully Differential ADC Driver Vn at flatband (typ) (nV√Hz) 1.9 Iq per channel (typ) (mA) 37.7 Rail-to-rail No Vos (offset voltage at 25°C) (max) (mV) 4 Operating temperature range (°C) -40 to 85 Iout (typ) (mA) 96 2nd harmonic (dBc) 104 3rd harmonic (dBc) 108 Frequency of harmonic distortion measurement (MHz) 10 GBW (typ) (MHz) 3000 Input bias current (max) (pA) 15500000 Features Decompensated, Shutdown CMRR (typ) (dB) 90 Rating Catalog
VQFN (RGT) 16 9 mm² (3 mm × 3 mm)
  • Fully-Differential Architecture
  • Centered Input Common-Mode Range
  • Output Common-Mode Control
  • Minimum Gain of 2 V/V (6 dB)
  • Bandwidth: 1900 MHz
  • Slew Rate: 6600 V/µs
  • 1% Settling Time: 2 ns
  • HD2: –75 dBc at 100 MHz
  • HD3: –80 dBc at 100 MHz
  • OIP3: 37 dBm at 70 MHz
  • Input Voltage Noise: 1.9 nV/√Hz (f > 10 MHz)
  • Power-Supply Voltage: 3 V to 5 V
  • Power-Supply Current: 37.7 mA
  • Power-Down Current: 0.65 mA
  • APPLICATIONS
    • 5-V Data Acquisition Systems High Linearity ADC Amplifiers
    • Wireless Communication
    • Medical Imaging
    • Test and Measurement

All other trademarks are the property of their respective owners
  • Fully-Differential Architecture
  • Centered Input Common-Mode Range
  • Output Common-Mode Control
  • Minimum Gain of 2 V/V (6 dB)
  • Bandwidth: 1900 MHz
  • Slew Rate: 6600 V/µs
  • 1% Settling Time: 2 ns
  • HD2: –75 dBc at 100 MHz
  • HD3: –80 dBc at 100 MHz
  • OIP3: 37 dBm at 70 MHz
  • Input Voltage Noise: 1.9 nV/√Hz (f > 10 MHz)
  • Power-Supply Voltage: 3 V to 5 V
  • Power-Supply Current: 37.7 mA
  • Power-Down Current: 0.65 mA
  • APPLICATIONS
    • 5-V Data Acquisition Systems High Linearity ADC Amplifiers
    • Wireless Communication
    • Medical Imaging
    • Test and Measurement

All other trademarks are the property of their respective owners

The THS4509 device is a wideband, fully-differential op amp designed for 5-V data acquisition systems. It has a low noise at 1.9 nV/√Hz, and low harmonic distortion of –75 dBc HD2 and –80 dBc HD3 at 100 MHz with 2 VPP, G = 10 dB, and 1-kΩ load. Slew rate is high at 6600 V/µs, and with settling time of 2 ns to 1% (2-V step), it is ideal for pulsed applications. It is designed for a minimum gain of 6 dB, but is optimized for gains of 10 dB.

To allow for DC coupling to analog-to-digital converters (ADCs), its unique output common-mode control circuit maintains the output common-mode voltage within 3-mV offset (typical) from the set voltage, when set within 0.5-V of midsupply, with less than 4-mV differential offset voltage. The common-mode set point is set to midsupply by internal circuitry, which may be overdriven from an external source.

The input and output are optimized for best performance with the common-mode voltages set to midsupply. Along with high performance at low power-supply voltage, this design makes it ideal for high-performance, single-supply 5-V data acquisition systems. The combined performance of the THS4509 in a gain of 10 dB driving the ADS5500 ADC, sampling at 125 MSPS, is 81-dBc SFDR and 69.1-dBc SNR with a –1 dBFS signal at 70 MHz.

The THS4509 is offered in a quad, leadless VQFN-16 package (RGT), and is characterized for operation over the full industrial temperature range from –40°C to +85°C.

The THS4509 device is a wideband, fully-differential op amp designed for 5-V data acquisition systems. It has a low noise at 1.9 nV/√Hz, and low harmonic distortion of –75 dBc HD2 and –80 dBc HD3 at 100 MHz with 2 VPP, G = 10 dB, and 1-kΩ load. Slew rate is high at 6600 V/µs, and with settling time of 2 ns to 1% (2-V step), it is ideal for pulsed applications. It is designed for a minimum gain of 6 dB, but is optimized for gains of 10 dB.

To allow for DC coupling to analog-to-digital converters (ADCs), its unique output common-mode control circuit maintains the output common-mode voltage within 3-mV offset (typical) from the set voltage, when set within 0.5-V of midsupply, with less than 4-mV differential offset voltage. The common-mode set point is set to midsupply by internal circuitry, which may be overdriven from an external source.

The input and output are optimized for best performance with the common-mode voltages set to midsupply. Along with high performance at low power-supply voltage, this design makes it ideal for high-performance, single-supply 5-V data acquisition systems. The combined performance of the THS4509 in a gain of 10 dB driving the ADS5500 ADC, sampling at 125 MSPS, is 81-dBc SFDR and 69.1-dBc SNR with a –1 dBFS signal at 70 MHz.

The THS4509 is offered in a quad, leadless VQFN-16 package (RGT), and is characterized for operation over the full industrial temperature range from –40°C to +85°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 THS4509 Wideband, Low-Noise, Low-Distortion, Fully-Differential Amplifier 数据表 (Rev. I) PDF | HTML 2016-7-29
应用简报 差动 ADC 驱动的运算放大器与全差动放大器 PDF | HTML 英语版 PDF | HTML 2026-1-14
应用简报 差分 ADC 的有源滤波器设计 (Rev. A) PDF | HTML 英语版 (Rev.A) PDF | HTML 2025-11-7
电路设计 使用全差分放大器的单端输入至差分输出电路 (Rev. A) PDF | HTML 英语版 (Rev.A) PDF | HTML 2024-10-1
产品概述 将 ADC 驱动器与全差分输入 ADC 配对以进行宽带宽数据采集 PDF | HTML 英语版 2024-4-2
电子书 Engineer's Guide to High-Speed Amplifiers PDF | HTML 2023-10-18
模拟设计期刊 Q3 2009 Issue Analog Applications Journal 2018-9-24
模拟设计期刊 Q4 2009 Issue Analog Applications Journal 2018-9-24
应用手册 Attenuator Amplifier Design to Maximize the Input Voltage of Differential ADCs 2018-6-14
应用手册 全差分放大器噪声系数计算 2018-6-14
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 Design for a Wideband Differential Transimpedance DAC Output (Rev. A) 2016-10-17
应用手册 Fully-Differential Amplifiers (Rev. E) 2016-9-19
模拟设计期刊 使用负输入电压的单电源全差动放大器驱动 ADC 英语版 2011-4-4
应用手册 Driving High-Speed ADCs: Circuit Topologies and System-Level Parameters (Rev. A) 2010-9-10
模拟设计期刊 Using fully differential op amps as attenuators, Part 3 2009-10-4
模拟设计期刊 Using fully differential op amps as attenuators, Part 2 2009-7-14
模拟设计期刊 Output impedance matching with fully differential operational amplifiers 2009-3-11
模拟设计期刊 Q1 2009 Issue Analog Applications Journal 2009-3-11
模拟设计期刊 Low-power, high-intercept interface to the ADS5424, 105-MSPS converter 2005-10-10
模拟设计期刊 Analysis of fully differential amplifiers 2005-3-11
模拟设计期刊 Fully differential amplifiers applications:Line termination,driving high-speed.. 2005-3-2

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

THS4508EVM — THS4508 评估模块

THS4508EVM is an evaluation Module for the RGT (16 pin leadless QFN) package.

The THS4508EVM is designed to demonstrate the functionality and versatility of the device. The EVM is ready for power, signal source, and test instruments. The EVM is configured for a gain of 10 dB and 50 ohm input and (...)

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评估板

THS4509EVM — THS4509 评估模块

THS4509RGT Eval 1 EVM is an evaluation Module for the RGT (16 pin leadless QFN) package.

The THS4509RGT Eval 1 EVM is designed to demonstrate the functionality and versatility of the device. The EVM is ready for power, signal source, and test instruments. The EVM is configured for a gain of 10dB (...)

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评估板

THS4511EVM — THS4511 评估模块

THS4511EVM is an evaluation Module for the RGT (16 pin leadless QFN) package.

The THS4511EVM is designed to demonstrate the functionality and versatility of the device. The EVM is ready for power, signal source, and test instruments. The EVM is configured for a gain of 0 dB and 50 ohm input and (...)

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评估板

THS4513EVM — THS4513 评估模块

THS4513EVM is an evaluation Module for the RGT (16 pin leadless QFN) package.

The THS4513EVM is designed to demonstrate the functionality and versatility of the device. The EVM is ready for power, signal source, and test instruments. The EVM is configured for a gain of 0dB and 50 ohm input and (...)

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评估板

THS4520EVM — THS4520 评估模块

THS4520EVM is an evaluation Module for the RGT (16 pin leadless QFN) package.

The THS4520EVM is designed to demonstrate the functionality and versatility of the device. The EVM is ready for power, signal source, and test instruments. The EVM is configured for a gain of 0 dB and 50 Ω (...)

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仿真模型

THS4509 PSpice Model (Rev. D)

SLOC050D.ZIP (55 KB) - PSpice 模型
支持的产品和硬件
仿真模型

THS4509 TINA-TI Reference Design (Rev. B)

SLOM152B.TSC (53 KB) - TINA-TI 参考设计
支持的产品和硬件
仿真模型

THS4509 TINA-TI Spice Model (Rev. A)

SLOM151A.ZIP (5 KB) - TINA-TI Spice 模型
支持的产品和硬件
计算工具

SBOR022 — TI FDA Calculator

支持的产品和硬件
参考设计

TIDA-00092 — 优化 LMH6554 以驱动高速 ADC

该参考设计展示了高速放大器 LMH6554 能够将单端信号转换为差分信号，从而驱动高速模数转换器 (ADC)，同时保持出色的噪声和失真性能。展示了与 ADS4449 四通道、250MSPS、14 位 ADC 连接时，交流耦合和直流耦合应用的性能与输入频率关系。讨论并测量了共模电压、电源和接口的各种选项，以满足各种应用的要求。展示了抗混叠滤波器示例及其具备的性能改进。

支持的产品和硬件
参考设计

TIDA-00093 — 优化 THS4509，驱动高速 ADC 的参考设计

该参考设计展示了高速放大器 THS4509 执行单端至差分转换以驱动高速模数转换器 (ADC) 的能力，同时保持出色的噪声和失真性能。展示了与 ADS4449 四通道、250MSPS、14 位 ADC 连接时，交流耦合和直流耦合应用的性能与输入频率关系。讨论并测量了共模电压、电源和接口的各种选项，以满足各种应用的要求。展示了抗混叠滤波器示例及其具备的性能改进。

支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
VQFN (RGT) 16 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

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