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THS4541-Q1

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車用高速差動 I/O 放大器

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THS4541-Q1

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.4 BW at Acl (MHz) 620 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 1500 Architecture Bipolar, Fully Differential ADC Driver Vn at flatband (typ) (nV√Hz) 2.2 Iq per channel (typ) (mA) 10.1 Rail-to-rail In to V-, Out Vos (offset voltage at 25°C) (max) (mV) 0.45 Operating temperature range (°C) -40 to 125 Iout (typ) (mA) 100 2nd harmonic (dBc) 95 3rd harmonic (dBc) 90 Frequency of harmonic distortion measurement (MHz) 10 GBW (typ) (MHz) 850 Input bias current (max) (pA) 13000000 Features Decompensated, Shutdown CMRR (typ) (dB) 100 Rating Automotive
Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.4 BW at Acl (MHz) 620 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 1500 Architecture Bipolar, Fully Differential ADC Driver Vn at flatband (typ) (nV√Hz) 2.2 Iq per channel (typ) (mA) 10.1 Rail-to-rail In to V-, Out Vos (offset voltage at 25°C) (max) (mV) 0.45 Operating temperature range (°C) -40 to 125 Iout (typ) (mA) 100 2nd harmonic (dBc) 95 3rd harmonic (dBc) 90 Frequency of harmonic distortion measurement (MHz) 10 GBW (typ) (MHz) 850 Input bias current (max) (pA) 13000000 Features Decompensated, Shutdown CMRR (typ) (dB) 100 Rating Automotive
VQFN (RGT) 16 9 mm² 3 x 3
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Bandwidth: 500MHz (G = 2V/V)
  • Gain bandwidth product: 850MHz
  • Slew rate: 1500V/µs
  • HD2: –95dBc at 10MHz (2VPP, RL = 500Ω)
  • HD3: –90dBc at 10MHz (2VPP, RL = 500Ω)
  • Input voltage noise: 2.2nV/√Hz (f > 100kHz)
  • Low offset drift: ±0.5µV/°C (typ)
  • Negative rail input (NRI)
  • Rail-to-rail output (RRO)
  • Power supply:
    • Single-supply voltage range: 2.7V to 5.4V
    • Split-supply voltage range: ±1.35V to ±2.7V
    • Quiescent current: 10.1mA (5V supply)
  • Power-down capability: 2µA (typ)
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Bandwidth: 500MHz (G = 2V/V)
  • Gain bandwidth product: 850MHz
  • Slew rate: 1500V/µs
  • HD2: –95dBc at 10MHz (2VPP, RL = 500Ω)
  • HD3: –90dBc at 10MHz (2VPP, RL = 500Ω)
  • Input voltage noise: 2.2nV/√Hz (f > 100kHz)
  • Low offset drift: ±0.5µV/°C (typ)
  • Negative rail input (NRI)
  • Rail-to-rail output (RRO)
  • Power supply:
    • Single-supply voltage range: 2.7V to 5.4V
    • Split-supply voltage range: ±1.35V to ±2.7V
    • Quiescent current: 10.1mA (5V supply)
  • Power-down capability: 2µA (typ)

The THS4541-Q1 is a low-power, voltage-feedback, fully differential amplifier (FDA) with an input common-mode range less than the negative rail, and rail-to-rail output. Designed for low-power data acquisition systems where high density is critical in a high-performance analog-to-digital converter (ADC) or digital-to-analog converter (DAC) interface design.

The THS4541-Q1 features the negative-rail input required when interfacing a dc-coupled, ground-centered, source signal. This negative-rail input, with rail-to-rail output, allows for an easy interface between single-ended, ground-referenced, bipolar signal sources and a wide variety of successive approximation register (SAR), delta-sigma (ΔΣ), or pipeline ADCs using only a single 2.7V to 5.4V power supply.

The THS4541-Q1 is characterized for operation over the wide temperature range of –40°C to +125°C and is available in a 16-pin VQFN package, both with and without wettable flanks. The package with wettable flanks eases post-assembly visual inspection and is available as the THS4541W-Q1.

The THS4541-Q1 is a low-power, voltage-feedback, fully differential amplifier (FDA) with an input common-mode range less than the negative rail, and rail-to-rail output. Designed for low-power data acquisition systems where high density is critical in a high-performance analog-to-digital converter (ADC) or digital-to-analog converter (DAC) interface design.

The THS4541-Q1 features the negative-rail input required when interfacing a dc-coupled, ground-centered, source signal. This negative-rail input, with rail-to-rail output, allows for an easy interface between single-ended, ground-referenced, bipolar signal sources and a wide variety of successive approximation register (SAR), delta-sigma (ΔΣ), or pipeline ADCs using only a single 2.7V to 5.4V power supply.

The THS4541-Q1 is characterized for operation over the wide temperature range of –40°C to +125°C and is available in a 16-pin VQFN package, both with and without wettable flanks. The package with wettable flanks eases post-assembly visual inspection and is available as the THS4541W-Q1.
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技術文件

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重要文件 類型 標題 格式選項 日期
* Data sheet THS4541-Q1 Negative-Rail Input, Rail-to-Rail Output, Precision, 850MHz Fully Differential Amplifier datasheet (Rev. C) PDF | HTML 2024年 10月 17日
Application brief Why Use an FDA to Drive an ADC? PDF | HTML 2026年 1月 8日
Application brief Active Filter Design for Differential ADCs (Rev. A) PDF | HTML 2025年 10月 8日
Circuit design Single-ended input to differential output circuit using a fully-differential amp (Rev. A) PDF | HTML 2024年 9月 25日
E-book Engineer's Guide to High-Speed Amplifiers 2023年 10月 18日
Application note Attenuator Amplifier Design to Maximize the Input Voltage of Differential ADCs 2018年 6月 14日
E-book The Signal e-book: A compendium of blog posts on op amp design topics 2017年 3月 28日
Application note Design for a Wideband Differential Transimpedance DAC Output (Rev. A) 2016年 10月 17日
Analog Design Journal Using single-supply fully diff. amps with neg. input voltages to drive ADCs 2010年 11月 15日
Application note Noise Analysis for High Speed Op Amps (Rev. A) 2005年 1月 17日

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開發板

THS4541RGTEVM — 採用 RGT 封裝的 THS4541 評估模組

THS4541RGT EVM 是一款採用 RGT 封裝的單 THS4541 放大器評估模組。此評估模組可快速且輕鬆地展示放大器的功能性和多元用途。EVM 隨時可透過板載連接器來連接電源、訊號源和測試儀器。EVM 已配置為可透過其輸入與輸出，輕鬆連接常見的 50-Ω 實驗室設備。該放大器配置為單端輸入，增益為 2V/V，並在裝置引腳處輸出差動訊號，透過變壓器轉換為單端輸出。該模組可輕鬆配置為其他功能、增益及單電源供電或分離式電源供電運作。

使用指南: PDF
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開發板

DEV-ADC34J22 — DEV-ADC34J22 評估模組

The DEV-ADC34J22 is a four-channel, 50MSPS ADC Module designed to integrate with Altera’s HSMC standard. The DEV-ADC34J22 features TI’s new JESD204B compliant ADC34J22 Analog Digital Converter (ADC), with clocking conditioning using TI’s LMK04828 jitter cleaner. It provides (...)

從：Dallas Logic Corporation
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模擬工具

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PSpice® for TI 是有助於評估類比電路功能的設計和模擬環境。這款全功能設計和模擬套件使用 Cadence® 的類比分析引擎。PSpice for TI 包括業界最大的模型庫之一，涵蓋我們的類比和電源產品組合，以及特定類比行為模型，且使用無需支付費用。

PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前，建立完整的終端設備設計和解決方案原型，進而縮短上市時間並降低開發成本。 

在 PSpice for TI 設計與模擬工具中，您可以搜尋 TI (...)
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模擬工具

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參考設計

TIDA-00294 — Dallas Logic Corp 高性能主動介面，適用於高速 ADC 參考設計

此參考設計由 Dallas Logic Corp 提供，使用 ADC34J22 12b 50MSPS JESD204B 資料轉換器和 THS4541 全差動放大器，展示如何為高速 ADC 設計高性能主動介面。此類電路可用於感測器前端，馬達控制，以及測試與測量應用。電路模型及設計方程式的衍生會與 PCB 上的實際執行方式一併呈現。此實作的結果表明，與被動交流耦合變壓器介面相比，性能非常相似。
從：Dallas Logic Corporation
Design guide: PDF
電路圖: PDF
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VQFN (RGT) 16 Ultra Librarian
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