OPA2350

現行

雙路單電源供電、軌至軌、高速、低雜訊運算放大器

產品詳細資料

Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Vos (offset voltage at 25°C) (max) (mV) 0.5 Offset drift (typ) (µV/°C) 4 Input bias current (max) (pA) 10 GBW (typ) (MHz) 38 Slew rate (typ) (V/µs) 22 Rail-to-rail In, Out Iq per channel (typ) (mA) 5.2 Vn at 1 kHz (typ) (nV√Hz) 7 CMRR (typ) (dB) 84 Rating Catalog Operating temperature range (°C) -40 to 85 Iout (typ) (A) 0.08 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) 0.1 Output swing headroom (to negative supply) (typ) (V) 0.01 Output swing headroom (to positive supply) (typ) (V) -0.01 THD + N at 1 kHz (typ) (%) 0.0006
Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Vos (offset voltage at 25°C) (max) (mV) 0.5 Offset drift (typ) (µV/°C) 4 Input bias current (max) (pA) 10 GBW (typ) (MHz) 38 Slew rate (typ) (V/µs) 22 Rail-to-rail In, Out Iq per channel (typ) (mA) 5.2 Vn at 1 kHz (typ) (nV√Hz) 7 CMRR (typ) (dB) 84 Rating Catalog Operating temperature range (°C) -40 to 85 Iout (typ) (A) 0.08 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) 0.1 Output swing headroom (to negative supply) (typ) (V) 0.01 Output swing headroom (to positive supply) (typ) (V) -0.01 THD + N at 1 kHz (typ) (%) 0.0006
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm) VSSOP (DGK) 8 14.7 mm² (3 mm × 4.9 mm)
  • Rail-to-Rail Input
  • Rail-to-Rail Output (Within 10 mV)
  • Wide Bandwidth: 38 MHz
  • High Slew Rate: 22 V/µs
  • Low Noise: 5 nV/√Hz
  • Low THD+Noise: 0.0006%
  • Unity-Gain Stable
  • MicroSize Packages
  • Single, Dual, and Quad
  • Rail-to-Rail Input
  • Rail-to-Rail Output (Within 10 mV)
  • Wide Bandwidth: 38 MHz
  • High Slew Rate: 22 V/µs
  • Low Noise: 5 nV/√Hz
  • Low THD+Noise: 0.0006%
  • Unity-Gain Stable
  • MicroSize Packages
  • Single, Dual, and Quad

The OPA350 series of rail-to-rail CMOS operational amplifiers are optimized for low voltage, single-supply operation. Rail-to-rail input and output, low noise (5 nV/√Hz), and high speed operation (38 MHz, 22 V/µs) make the amplifiers ideal for driving sampling Analog-to-Digital (A/D) converters. They are also suited for cell phone PA control loops and video processing (75-Ω drive capability), as well as audio and general purpose applications. Single, dual, and quad versions have identical specifications for maximum design flexibility.

The OPA350 series operates on a single supply as low as 2.5 V, with an input common-mode voltage range that extends 300 mV below ground and 300 mV above the positive supply. Output voltage swing is to within 10 mV of the supply rails, with a 10-kΩ load. Dual and quad designs feature completely independent circuitry for lowest crosstalk and freedom from interaction.

The single (OPA350) and dual (OPA2350) come in the miniature MSOP-8 surface mount, SO-8 surface mount, and DIP-8 packages. The quad (OPA4350) packages are in the space-saving SSOP-16 surface mount and SO-14 surface mount. All are specified from –40°C to 85°C and operate from –55°C to 150°C.

The OPA350 series of rail-to-rail CMOS operational amplifiers are optimized for low voltage, single-supply operation. Rail-to-rail input and output, low noise (5 nV/√Hz), and high speed operation (38 MHz, 22 V/µs) make the amplifiers ideal for driving sampling Analog-to-Digital (A/D) converters. They are also suited for cell phone PA control loops and video processing (75-Ω drive capability), as well as audio and general purpose applications. Single, dual, and quad versions have identical specifications for maximum design flexibility.

The OPA350 series operates on a single supply as low as 2.5 V, with an input common-mode voltage range that extends 300 mV below ground and 300 mV above the positive supply. Output voltage swing is to within 10 mV of the supply rails, with a 10-kΩ load. Dual and quad designs feature completely independent circuitry for lowest crosstalk and freedom from interaction.

The single (OPA350) and dual (OPA2350) come in the miniature MSOP-8 surface mount, SO-8 surface mount, and DIP-8 packages. The quad (OPA4350) packages are in the space-saving SSOP-16 surface mount and SO-14 surface mount. All are specified from –40°C to 85°C and operate from –55°C to 150°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 OPAx350 High-Speed, Single-Supply, Rail-to-Rail Operational Amplifiers MicroAmplifier Series datasheet (Rev. D) PDF | HTML 2015/12/21
應用說明 Impact of Current Noise in CMOS and JFET Amplifiers PDF | HTML 2023/5/4
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 OPA350, OPA2350, OPA4350 EMI Immunity Performance (Rev. A) 2012/11/2
白皮書 HVAC Dual AC Motor Control with Active PFC Implementation Using Piccolo™ MCUs 2010/4/15
使用指南 DAP Signaling Conditioning Board Users Guide 2003/6/18

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

AMP-PDK-EVM — 放大器性能開發套件評估模組

放大器性能開發套件 (PDK) 是一款評估模組 (EVM) 套件,可測試通用運算放大器 (op amp) 參數,並與大多數運算放大器和比較器相容。EVM 套件提供主板和多個插槽式子卡選項,可滿足封裝需求,使工程師能夠快速評估和驗證裝置性能。

AMP-PDK-EVM 套件支援五種最熱門的業界標準封裝,包括:

  • D (SOIC-8 和 SOIC-14)
  • PW (TSSOP-14)
  • DGK (VSSOP-8)
  • DBV (SOT23-5 和 SOT23-6)
  • DCK (SC70-5 和 SC70-6)
使用指南: PDF | HTML
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開發板

PP-SALB2-EVM — PP-SALB2-EVM 智慧放大器喇叭特性化基板評估模組 (學習板 2)

此電路板支援:TAS2555YZEVMTAS2557EVMTAS2559EVM

智慧型放大器喇叭特性化基板與支援的 TI 智慧型放大器和 PurePath Console 軟體一起使用時,可讓使用者測量喇叭偏移、溫度及其他參數,以搭配 TI 智慧型放大器產品使用。  整個解決方案提供方便使用的逐步程序,引導您完成整個喇叭特性化程序。  完成特性化後,喇叭參數會自動載入 PurePath Console 中,以便開始進行微調,並透過喇叭保護功能獲得最佳音質。

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模擬型號

OPAx350 PSpice Model (Rev. E)

SBOM071E.ZIP (29 KB) - PSpice 模型
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模擬型號

OPAx350 TINA-TI Reference Design (Rev. F)

SBOC202F (344 KB) - TINA-TI 參考設計
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模擬型號

OPAx350 TINA-TI Spice Model (Rev. E)

SBOM280E.ZIP (10 KB) - TINA-TI Spice 模型
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計算工具

ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

類比工程師的計算機旨在加速類比電路設計工程師定期使用的許多重複計算。此基於 PC 的工具提供圖形介面,列出各種常見計算,從使用回饋電阻器設定運算放大器增益到選擇適當的電路設計元件以穩定類比數位轉換器 (ADC) 驅動緩衝電路。

除了作為獨立工具使用外,此計算機還與類比工程師口袋參考中描述的概念相得益彰。

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計算工具

OPAMP-NOISECALC — Noise Calculator

This folder contains three tools to help in understandning and managing noise in cicuits. The included tools are:

  • A noise generator tool - This is a Lab View 4-Run Time executable that generates Gaussian white noise, uniform white noise, 1/f noise, short noise, and 60Hz line noise. Temporal data, (...)
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參考設計

TIDM-LPBP-LEDDRIVER — 即時數位 LED 控制

即時數位 LED 控制參考設計展示了控制三個升壓轉換器以驅動三個 LED(紅、藍、綠)串。此設計允許利用各種 LED 的即時數位控制進行開發,使其非常適合需要即時 LED 控制的任何工業或汽車應用。

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參考設計

TIDM-RGB-LED — 基於 C2000™ MCU 的多串 RGB LED 照明驅動器

此多串 RGB LED 照明設計非常適合汽車、娛樂、零售與裝飾照明應用,實作了具備調光與混色功能的獨立多串 LED 控制。此 LED 驅動器由 8 個獨立且受數位控制的 DC/DC 電源轉換器組成,可驅動 8 個 LED 串。

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參考設計

TIDM-THREEPHASE-BSDC — 全橋有刷和步進馬達控制解決方案

此參考設計展示了一種馬達控制解決方案,用於驅動三相有刷 DC 或單步進馬達 — 採用 C2000™ Piccolo™ 微控制器與 DRV8412 三相馬達驅動器。此高度整合且穩健的馬達控制與驅動器解決方案可縮短有刷與步進馬達的開發時間,可在 50V 下提供高達 6A 連續/12A 峰值的運作能力。典型的應用包含醫療幫浦、開門器、舞台照明、紡織製造工具,以及工業或消費型機器人。此參考設計是以 DRV8412 評估套件為基礎。

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參考設計

TIPD112 — 適用於多工器和步進輸入的資料採集、18 位元、1uS 全幅反應參考設計

This verified design is a high performance data acquisition system (DAQ) using an 18-bit SAR ADC, ADS8881 at a throughput of 1MSPS. This design has been optimized to provide 18-bit settling performance for a Full Scale Step Input signal, thus leading to excellent system linearity. Such an input (...)

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封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOIC (D) 8 Ultra Librarian
VSSOP (DGK) 8 Ultra Librarian

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