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THS4509

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1.9-GHz、寬頻、低雜訊、低失真、全差分放大器

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產品規格表

THS4509

現行
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產品詳細資料

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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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 THS4509 Wideband, Low-Noise, Low-Distortion, Fully-Differential Amplifier datasheet (Rev. I) PDF | HTML 2016/7/29
Application brief Why Use an FDA to Drive an ADC? PDF | HTML 2026/1/8
Application brief Active Filter Design for Differential ADCs (Rev. A) PDF | HTML 2025/10/8
Circuit design Single-ended input to differential output circuit using a fully-differential amp (Rev. A) PDF | HTML 2024/9/25
Product overview Pairing ADC Drivers With Fully-Differential Input ADCs for Wide Bandwidth Data Acquisition 2024/4/1
電子書 Engineer's Guide to High-Speed Amplifiers PDF | HTML 2023/10/18
類比設計期刊 Q3 2009 Issue Analog Applications Journal 2018/9/24
類比設計期刊 Q4 2009 Issue Analog Applications Journal 2018/9/24
應用說明 Attenuator Amplifier Design to Maximize the Input Voltage of Differential ADCs 2018/6/14
電子書 The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML 2017/3/28
應用說明 Design for a Wideband Differential Transimpedance DAC Output (Rev. A) 2016/10/17
應用說明 Fully-Differential Amplifiers (Rev. E) 2016/9/19
類比設計期刊 Using single-supply fully diff. amps with neg. input voltages to drive ADCs 2010/11/15
應用說明 Driving High-Speed ADCs: Circuit Topologies and System-Level Parameters (Rev. A) 2010/9/10
類比設計期刊 Using fully differential op amps as attenuators, Part 3 2009/10/4
類比設計期刊 Using fully differential op amps as attenuators, Part 2 2009/7/14
類比設計期刊 Output impedance matching with fully differential operational amplifiers 2009/3/11
類比設計期刊 Q1 2009 Issue Analog Applications Journal 2009/3/11
類比設計期刊 Low-power, high-intercept interface to the ADS5424, 105-MSPS converter 2005/10/10
類比設計期刊 Analysis of fully differential amplifiers 2005/3/11
類比設計期刊 Fully differential amplifiers applications:Line termination,driving high-speed.. 2005/3/2

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

THS4508EVM — THS4508 評估模組

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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開發板

THS4509EVM — THS4509 評估模組

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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開發板

THS4511EVM — THS4511 評估模組

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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開發板

THS4513EVM — THS4513 評估模組

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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THS4520EVM — THS4520 評估模組

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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模擬型號

THS4509 PSpice Model (Rev. D)

SLOC050D.ZIP (55 KB) - PSpice 模型
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模擬型號

THS4509 TINA-TI Reference Design (Rev. B)

SLOM152B.TSC (53 KB) - TINA-TI 參考設計
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模擬型號

THS4509 TINA-TI Spice Model (Rev. A)

SLOM151A.ZIP (5 KB) - TINA-TI Spice 模型
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計算工具

SBOR022 — TI FDA Calculator

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參考設計

TIDA-00092 — 將 LMH6554 最佳化以驅動高速 ADC

此參考設計展示高速放大器 LMH6554 的能力，可執行單端至差動轉換，以驅動高速類比轉數位轉換器 (ADC)，同時維持出色的雜訊和失真性能。連接至 ADS4449 四路、250MSPS、14 位元 ADC 時，會顯示 AC 和 DC 耦合應用的性能與輸入頻率的關係。此設計討論並測量了共模電壓、電源供應器和介面的不同選項，可滿足各種應用的需求。其中會顯示抗混疊濾波器範例及其提供的性能改進。

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參考設計

TIDA-00093 — 最佳化 THS4509 以驅動高速 ADC 參考設計

此參考設計展示高速放大器 THS4509 的能力，可執行單端至差動轉換，以驅動高速類比轉數位轉換器 (ADC)，同時維持出色的雜訊和失真性能。連接至 ADS4449 四路、250MSPS、14 位元 ADC 時，會顯示 AC 和 DC 耦合應用的性能與輸入頻率的關係。此設計討論並測量了共模電壓、電源供應器和介面的不同選項，可滿足各種應用的需求。其中會顯示抗混疊濾波器範例及其提供的性能改進。

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封裝 針腳 CAD 符號、佔位空間與 3D 模型
VQFN (RGT) 16 Ultra Librarian
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