OPA365

現行

5V、50MHz、精密、高 CMRR、軌至軌運算放大器

產品詳細資料

Architecture FET / CMOS Input, Voltage FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 GBW (typ) (MHz) 50 BW at Acl (MHz) 50 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 25 Vn at flatband (typ) (nV√Hz) 4.5 Vn at 1 kHz (typ) (nV√Hz) 4.5 Iq per channel (typ) (mA) 4.6 Vos (offset voltage at 25°C) (max) (mV) 0.2 Rail-to-rail In, Out Features Zero Crossover Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 120 Input bias current (max) (pA) 10 Offset drift (typ) (µV/°C) 1 Iout (typ) (mA) 65 2nd harmonic (dBc) 81 3rd harmonic (dBc) 93 Frequency of harmonic distortion measurement (MHz) 1
Architecture FET / CMOS Input, Voltage FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 GBW (typ) (MHz) 50 BW at Acl (MHz) 50 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 25 Vn at flatband (typ) (nV√Hz) 4.5 Vn at 1 kHz (typ) (nV√Hz) 4.5 Iq per channel (typ) (mA) 4.6 Vos (offset voltage at 25°C) (max) (mV) 0.2 Rail-to-rail In, Out Features Zero Crossover Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 120 Input bias current (max) (pA) 10 Offset drift (typ) (µV/°C) 1 Iout (typ) (mA) 65 2nd harmonic (dBc) 81 3rd harmonic (dBc) 93 Frequency of harmonic distortion measurement (MHz) 1
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm) SOT-23 (DBV) 5 8.12 mm² (2.9 mm × 2.8 mm)
  • Gain bandwidth: 50 MHz
  • Zerø-crossover distortion topology:
    • Excellent THD+N: 0.0004%
    • CMRR: 100 dB (minimum)
    • Rail-to-rail input and output
      • Input 100 mV beyond supply rail
  • Low noise: 4.5 nV/√ Hz at 100 kHz
  • Slew rate: 25 V/µs
  • Fast settling: 0.3 µs to 0.01%
  • Precision:
    • Low offset: 100 µV
    • Low input bias current: 0.2 pA
  • 2.2-V to 5.5-V operation
  • Gain bandwidth: 50 MHz
  • Zerø-crossover distortion topology:
    • Excellent THD+N: 0.0004%
    • CMRR: 100 dB (minimum)
    • Rail-to-rail input and output
      • Input 100 mV beyond supply rail
  • Low noise: 4.5 nV/√ Hz at 100 kHz
  • Slew rate: 25 V/µs
  • Fast settling: 0.3 µs to 0.01%
  • Precision:
    • Low offset: 100 µV
    • Low input bias current: 0.2 pA
  • 2.2-V to 5.5-V operation

The OPA365 and OPA2365 (OPAx365) zerø-crossover series, rail-to-rail, high-performance, CMOS operational amplifiers are optimized for very low voltage, single-supply applications. Rail-to-rail input or output, low-noise (4.5 nV/√ Hz), and high-speed operation (50-MHz gain bandwidth) make these devices an excellent choice for driving sampling analog-to-digital converters (ADCs). Applications include audio, signal conditioning, and sensor amplification.

Special features include an excellent common-mode rejection ratio (CMRR), no input stage crossover distortion, high input impedance, and rail-to-rail input and output swing. The input common-mode range includes both the negative and positive supplies. The output voltage swing is within 10 mV of the rails.

The OPA365 (single version) is available in the micro-size SOT23-5 (SOT-5) and SOIC-8 packages. The OPA2365 (dual version) is offered in the SOIC-8 package. All versions are specified for operation from −40°C to +125°C. Single and dual versions have identical specifications for maximum design flexibility.

The OPA365 and OPA2365 (OPAx365) zerø-crossover series, rail-to-rail, high-performance, CMOS operational amplifiers are optimized for very low voltage, single-supply applications. Rail-to-rail input or output, low-noise (4.5 nV/√ Hz), and high-speed operation (50-MHz gain bandwidth) make these devices an excellent choice for driving sampling analog-to-digital converters (ADCs). Applications include audio, signal conditioning, and sensor amplification.

Special features include an excellent common-mode rejection ratio (CMRR), no input stage crossover distortion, high input impedance, and rail-to-rail input and output swing. The input common-mode range includes both the negative and positive supplies. The output voltage swing is within 10 mV of the rails.

The OPA365 (single version) is available in the micro-size SOT23-5 (SOT-5) and SOIC-8 packages. The OPA2365 (dual version) is offered in the SOIC-8 package. All versions are specified for operation from −40°C to +125°C. Single and dual versions have identical specifications for maximum design flexibility.

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技術文件

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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 OPAx365 50-MHz, Zerø-Crossover, Low-Distortion, High-CMRR, RRI/O, Single-Supply Operational Amplifiers datasheet (Rev. G) PDF | HTML 2023/5/17
Circuit design PWM generator circuit (Rev. B) PDF | HTML 2024/10/16
Circuit design Antialiasing filter circuit design for single-ended ADC input using fixed cutoff (Rev. B) PDF | HTML 2024/9/24
Circuit design Driving a low-voltage single-ended SAR ADC circuit with high-voltage input (Rev. A) PDF | HTML 2024/9/19
Circuit design Circuit for differential output from a single-ended precision DAC (Rev. A) PDF | HTML 2024/9/19
Circuit design Inverting circuit for high-to-low voltage level translation to drive ADC (Rev. A) PDF | HTML 2024/9/19
技術文章 高頻共振轉換器設計考量,第 2 部分 PDF | HTML Download English Version PDF | HTML 2024/3/15
白皮書 Op Amp Input and Output Swing Limitations PDF | HTML 2023/12/7
Application brief Zero-crossover Amplifiers: Features and Benefits (Rev. B) PDF | HTML 2023/11/8
應用說明 AN-31 Amplifier Circuit Collection (Rev. D) PDF | HTML 2020/10/21
Application brief Increase Measurement Accuracy With HS Amps for Low-Side Shunt Current Monitoring (Rev. A) 2019/8/26
電子書 The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML 2017/3/28
電子書 The Best of Baker's Best – Amplifiers eBook 2014/1/14
應用說明 Low Power Input and Reference Driver Circuit for ADS8318 and ADS8319 2009/6/24

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

DEM-OPA-SO-1A — 適用於 SO-8 封裝的單路運算放大器評估模組

The DEM-OPA-SO-1A demonstration fixture helps designers evaluate the operation and performance of TI's High Speed, Wide Bandwidth Operational Amplifiers. This unpopulated PC board is compatible with products offered in the 8-lead SOIC (D) package.

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開發板

DEM-OPA-SOT-1A — 適用於 SOT-23 5 針腳和 6 針腳封裝的單路運算放大器評估模組

DEM-OPA-SOT-1A 是一種展示電路板,用於評估高速、寬頻運算放大器的運作和性能。此未組裝的 PC 電路板與採用小型電晶體 (SOT) DBV 封裝的產品相容。

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模擬型號

OPA365 PSpice Model (Rev. A)

SBOC133A.ZIP (200 KB) - PSpice 模型
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模擬型號

OPA365 TINA-TI Reference Design (Rev. A)

SBOC134 (18 KB) - TINA-TI 參考設計
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模擬型號

OPA365 TINA-TI Spice Model

SBOM203.TSM (5 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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設計工具

SBAM419 — Source Files for SBAA344

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設計工具

SBOC552 — Simulation for Pulse Width Modulator in AN-31

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許多 TI 參考設計包含 OPA365

使用我們的參考設計選擇工具,以檢視並找出最適合您的應用和參數的設計。

封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOIC (D) 8 Ultra Librarian
SOT-23 (DBV) 5 Ultra Librarian

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