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放大器
運算放大器 (op amps)
高速運算放大器 (GBW ≥ 50 MHz)

OPA2810

現行

雙通道、高效能、27 V、105 MHz、RRIO FET 輸入運算放大器

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產品規格表

OPA2810

現行
產品規格表 立即訂購

產品詳細資料

Architecture FET / CMOS Input, Voltage FB Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.75 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 27 GBW (typ) (MHz) 70 BW at Acl (MHz) 105 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 192 Vn at flatband (typ) (nV√Hz) 6 Vn at 1 kHz (typ) (nV√Hz) 16.43 Iq per channel (typ) (mA) 3.6 Vos (offset voltage at 25°C) (max) (mV) 1.5 Rail-to-rail In, Out Features C-Load Drive Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 100 Input bias current (max) (pA) 20 Offset drift (typ) (µV/°C) 2 Iout (typ) (mA) 75 2nd harmonic (dBc) 99 3rd harmonic (dBc) 104 Frequency of harmonic distortion measurement (MHz) 1
Architecture FET / CMOS Input, Voltage FB Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.75 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 27 GBW (typ) (MHz) 70 BW at Acl (MHz) 105 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 192 Vn at flatband (typ) (nV√Hz) 6 Vn at 1 kHz (typ) (nV√Hz) 16.43 Iq per channel (typ) (mA) 3.6 Vos (offset voltage at 25°C) (max) (mV) 1.5 Rail-to-rail In, Out Features C-Load Drive Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 100 Input bias current (max) (pA) 20 Offset drift (typ) (µV/°C) 2 Iout (typ) (mA) 75 2nd harmonic (dBc) 99 3rd harmonic (dBc) 104 Frequency of harmonic distortion measurement (MHz) 1
VSSOP (DGK) 8 14.7 mm² (3 mm × 4.9 mm) SOT-23 (DCN) 8 4.64 mm² (2.9 mm × 1.6 mm) SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
  • Gain-bandwidth product: 70 MHz
  • Small-signal bandwidth: 105 MHz
  • Slew rate: 192 V/µs
  • Wide supply range: 4.75 V to 27 V
  • Low noise:
    • Input voltage noise: 6 nV/√Hz (f = 500 kHz)
    • Input current noise: 5 fA/√Hz (f = 10 kHz)
  • Rail-to-rail input and output:
    • FET input stage: 2-pA input bias current (typical)
    • High linear output current: 75 mA
  • Input offset: ±1.5 mV (maximum)
  • Offset drift: ±2 µV/°C (typical)
  • Low power: 3.6 mA/channel
  • Extended temperature operation:
    –40°C to +125°C
  • Single-channel version: OPA810
  • Gain-bandwidth product: 70 MHz
  • Small-signal bandwidth: 105 MHz
  • Slew rate: 192 V/µs
  • Wide supply range: 4.75 V to 27 V
  • Low noise:
    • Input voltage noise: 6 nV/√Hz (f = 500 kHz)
    • Input current noise: 5 fA/√Hz (f = 10 kHz)
  • Rail-to-rail input and output:
    • FET input stage: 2-pA input bias current (typical)
    • High linear output current: 75 mA
  • Input offset: ±1.5 mV (maximum)
  • Offset drift: ±2 µV/°C (typical)
  • Low power: 3.6 mA/channel
  • Extended temperature operation:
    –40°C to +125°C
  • Single-channel version: OPA810

The OPA2810 is a dual-channel, FET-input, voltage-feedback operational amplifier with low input bias current. The OPA2810 is unity-gain stable with a small-signal unity-gain bandwidth of 105 MHz, and offers excellent DC precision and dynamic AC performance at a low quiescent current (IQ) of 3.6 mA per channel (typical). The OPA2810 is fabricated on Texas Instrument’s proprietary, high-speed SiGe BiCMOS process and achieves significant performance improvements over comparable FET-input amplifiers at similar levels of quiescent power. With a gain-bandwidth product (GBWP) of 70 MHz, slew-rate of 192 V/µs, and voltage low noise of 6 nV/√Hz, the OPA2810 is well suited for use in a wide range of high fidelity data acquisition and signal processing applications.

The OPA2810 is characterized to operate over a wide supply range of 4.75 V to 27 V, and features rail-to-rail inputs and outputs. The OPA2810 amplifier delivers 75 mA of linear output current, suitable for driving optoelectronics components and analog-to-digital converter (ADC) inputs or buffering DAC outputs into heavy loads.

The OPA2810 is available in 8-pin SOIC, SOT23, and VSSOP packages and is rated to work over the extended industrial temperature range of –40°C to +125°C. The OPA810 is a single-channel variant of this device, available in 8-pin SOIC and 5-pin SOT-23 and SC70 packages.

The OPA2810 is a dual-channel, FET-input, voltage-feedback operational amplifier with low input bias current. The OPA2810 is unity-gain stable with a small-signal unity-gain bandwidth of 105 MHz, and offers excellent DC precision and dynamic AC performance at a low quiescent current (IQ) of 3.6 mA per channel (typical). The OPA2810 is fabricated on Texas Instrument’s proprietary, high-speed SiGe BiCMOS process and achieves significant performance improvements over comparable FET-input amplifiers at similar levels of quiescent power. With a gain-bandwidth product (GBWP) of 70 MHz, slew-rate of 192 V/µs, and voltage low noise of 6 nV/√Hz, the OPA2810 is well suited for use in a wide range of high fidelity data acquisition and signal processing applications.

The OPA2810 is characterized to operate over a wide supply range of 4.75 V to 27 V, and features rail-to-rail inputs and outputs. The OPA2810 amplifier delivers 75 mA of linear output current, suitable for driving optoelectronics components and analog-to-digital converter (ADC) inputs or buffering DAC outputs into heavy loads.

The OPA2810 is available in 8-pin SOIC, SOT23, and VSSOP packages and is rated to work over the extended industrial temperature range of –40°C to +125°C. The OPA810 is a single-channel variant of this device, available in 8-pin SOIC and 5-pin SOT-23 and SC70 packages.
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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 OPA2810 Dual-Channel, 27-V, Rail-to-Rail Input/Output FET-Input Operational Amplifier datasheet (Rev. C) PDF | HTML 2020/2/11
Product overview High Speed Amplifiers for In-Vitro Diagnostics (IVD) Analog Front End PDF | HTML 2025/4/10
Application brief Optimizing LCR Meter Front-End Design for Accurate Impedance Measurements PDF | HTML 2021/1/20
設計指南 Cascaded high-gain active LPF reference design for high-impedance applications (Rev. B) PDF | HTML 2019/9/26
Application brief Pairing up Op Amp and Buffer for Higher Output Power Plus Speed in ATE 2019/6/7
技術文章 What are the advantages of using JFET-input amplifiers in high-speed applications? PDF | HTML 2018/6/19

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

OPA2810DGKEVM — OPA2810 FET 輸入、電壓回饋運算放大器評估模組

OPA2810DGKEVM 是一款採用 DGK (VSSOP-8) 封裝之適用於雙通道 OPA2810 放大器的評估模組。OPA2810 是一款具有極低輸入偏壓電流的 FET 輸入、電壓回饋運算放大器。OPA2810DGKEVM 可快速且輕鬆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 50Ω 實驗室設備。每個放大器都配置為單端輸入，在裝置輸出端具有 1V/V 的非反相訊號增益。OPA2810DGKEVM 的每個放大器的總板載負載為 2kΩ。輸出電阻器網路將輸出轉換為 50Ω (...)
使用指南: PDF
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模擬型號

OPA2810 for PSPICE Library

SBOMB66.ZIP (16 KB) - PSpice 模型
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模擬型號

OPA2810 Model for Curated PSpice Library (Rev. A)

SBOMB78A.ZIP (33 KB) - PSpice 模型
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模擬型號

OPA2810 TINA-TI Reference Design (Rev. B)

SBOMAM2B (2389 KB) - TINA-TI 參考設計
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模擬型號

OPA2810 TINA-TI Spice Model (Rev. A)

SBOMAM3A.ZIP (9 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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參考設計

TIDA-060021 — 適合高阻抗應用的串聯式高增益低通電位作動濾波器參考設計

此設計使用 OPA2810 高速放大器，提供兩個截止頻率為 1MHz 的多回饋 (MFB) 低通濾波器板。四階板提供具有高增益和陡峭衰減的四階濾波器。高阻抗板 (High-Z) 是二階濾波器，適用於前一級具有大輸出阻抗的系統。此參考設計中的兩個電路板均為工程師提供高增益、寬電源範圍的濾波器，並著重於將雜訊和失真降到最低。
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參考設計

TIDA-060029 — LCR 測試儀類比前端參考設計

此參考設計 TIDA-060029 展示了使用自動平衡阻抗測量方法，且適用於 LCR 儀表應用的類比訊號鏈解決方案。
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
VSSOP (DGK) 8 Ultra Librarian
SOT-23 (DCN) 8 Ultra Librarian
SOIC (D) 8 Ultra Librarian
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