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

OPA818

現行

2.7-GHz、13-V、補償不全 7-V/V、FET 輸入運算放大器

立即訂購
產品規格表

OPA818

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 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 6 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 13 GBW (typ) (MHz) 2700 BW at Acl (MHz) 765 Acl, min spec gain (V/V) 7 Slew rate (typ) (V/µs) 1400 Vn at flatband (typ) (nV√Hz) 2.2 Vn at 1 kHz (typ) (nV√Hz) 8.5 Iq per channel (typ) (mA) 27.7 Vos (offset voltage at 25°C) (max) (mV) 1.25 Rail-to-rail No Features Decompensated Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 90 Input bias current (max) (pA) 25 Offset drift (typ) (µV/°C) 3 Iout (typ) (mA) 55 2nd harmonic (dBc) -84 3rd harmonic (dBc) -106 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) 6 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 13 GBW (typ) (MHz) 2700 BW at Acl (MHz) 765 Acl, min spec gain (V/V) 7 Slew rate (typ) (V/µs) 1400 Vn at flatband (typ) (nV√Hz) 2.2 Vn at 1 kHz (typ) (nV√Hz) 8.5 Iq per channel (typ) (mA) 27.7 Vos (offset voltage at 25°C) (max) (mV) 1.25 Rail-to-rail No Features Decompensated Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 90 Input bias current (max) (pA) 25 Offset drift (typ) (µV/°C) 3 Iout (typ) (mA) 55 2nd harmonic (dBc) -84 3rd harmonic (dBc) -106 Frequency of harmonic distortion measurement (MHz) 1
SOT-23 (DBV) 5 8.12 mm² (2.9 mm × 2.8 mm) WSON (DRG) 8 9 mm² (3 mm × 3 mm)
  • High speed:
    • Gain-bandwidth product (GBWP): 2.7GHz
    • Bandwidth (G = 7V/V): 765MHz
    • Large-signal bandwidth (2VPP): 400MHz
    • Slew rate: 1400V/µs
  • Decompensated gain: 7V/V stable
  • Low noise:
    • Input voltage noise: 2.2nV/√Hz
    • Input current noise: 3fA/√Hz (f = 10kHz)
  • Input bias current: 4pA (typical)
  • Low input capacitance:
    • Common-mode: 1.9pF
    • Differential mode: 0.5pF
  • Low distortion (G = 7V/V, RL = 1kΩ, VO = 2VPP):
    • HD2, HD3 at 1MHz: –104dBc, –108dBc
    • HD2, HD3 at 50MHz: –57dBc, –72dBc
  • Wide supply range: 6V to 13V
  • Output swing: 8VPP (VS = 10V)
  • Supply current: 27.7mA
  • Shutdown supply current: 27µA
  • Performance upgrade to OPA657
  • High speed:
    • Gain-bandwidth product (GBWP): 2.7GHz
    • Bandwidth (G = 7V/V): 765MHz
    • Large-signal bandwidth (2VPP): 400MHz
    • Slew rate: 1400V/µs
  • Decompensated gain: 7V/V stable
  • Low noise:
    • Input voltage noise: 2.2nV/√Hz
    • Input current noise: 3fA/√Hz (f = 10kHz)
  • Input bias current: 4pA (typical)
  • Low input capacitance:
    • Common-mode: 1.9pF
    • Differential mode: 0.5pF
  • Low distortion (G = 7V/V, RL = 1kΩ, VO = 2VPP):
    • HD2, HD3 at 1MHz: –104dBc, –108dBc
    • HD2, HD3 at 50MHz: –57dBc, –72dBc
  • Wide supply range: 6V to 13V
  • Output swing: 8VPP (VS = 10V)
  • Supply current: 27.7mA
  • Shutdown supply current: 27µA
  • Performance upgrade to OPA657

The OPA818 is a decompensated, voltage-feedback operational amplifier for high-speed and wide-dynamic-range applications. The OPA818 has a low-noise JFET input stage that combines high gain-bandwidth with a wide supply range from 6V to 13V. The fast slew rate (1400V/µs) provides high, large-signal bandwidth and low distortion. This amplifier is manufactured using TI’s proprietary, high-speed, silicon-germanium (SiGe) process to achieve significant performance improvements over other high-speed, FET-input amplifiers.

The OPA818 is an extremely versatile, wideband TIA photodiode amp for use in optical test and communication equipment, and many medical, scientific, and industrial instruments. The OPA818 showcases a 2.7GHz GBWP, low 2.4pF total input capacitance, and 2.2nV/√Hz input noise. The OPA818 achieves over 85MHz signal bandwidth in a TIA configuration with 20kΩ TIA gain (RF) and 0.5pF photodiode capacitance (CD) with wide output swings. The low-noise architecture with picoampere of input bias current is also an excellent choice for test and measurement applications. Though typically stable in gains ≥ 7V/V, the OPA818 is designed for use in applications with lower gains by applying noise-gain shaping techniques.

The OPA818 is available in an 5-pin SOT-23 package and an 8-lead WSON package with an exposed thermal pad for heat dissipation. This device is specified for operation over the industrial temperature range of –40°C to +85°C.

The OPA818 is a decompensated, voltage-feedback operational amplifier for high-speed and wide-dynamic-range applications. The OPA818 has a low-noise JFET input stage that combines high gain-bandwidth with a wide supply range from 6V to 13V. The fast slew rate (1400V/µs) provides high, large-signal bandwidth and low distortion. This amplifier is manufactured using TI’s proprietary, high-speed, silicon-germanium (SiGe) process to achieve significant performance improvements over other high-speed, FET-input amplifiers.

The OPA818 is an extremely versatile, wideband TIA photodiode amp for use in optical test and communication equipment, and many medical, scientific, and industrial instruments. The OPA818 showcases a 2.7GHz GBWP, low 2.4pF total input capacitance, and 2.2nV/√Hz input noise. The OPA818 achieves over 85MHz signal bandwidth in a TIA configuration with 20kΩ TIA gain (RF) and 0.5pF photodiode capacitance (CD) with wide output swings. The low-noise architecture with picoampere of input bias current is also an excellent choice for test and measurement applications. Though typically stable in gains ≥ 7V/V, the OPA818 is designed for use in applications with lower gains by applying noise-gain shaping techniques.

The OPA818 is available in an 5-pin SOT-23 package and an 8-lead WSON package with an exposed thermal pad for heat dissipation. This device is specified for operation over the industrial temperature range of –40°C to +85°C.
filter 尋找其它 高速運算放大器 (GBW ≥ 50 MHz)
下載 觀看有字幕稿的影片 影片

您可能會感興趣的類似產品

open-in-new 比較替代產品
針腳對針腳的功能與所比較的裝置相同。
OPA817 現行 800-MHz、高精密度、單位增益穩定、FET 輸入運算放大器 High-voltage FET input, unity-gain stable and higher precision (0.2 mV, 1 uV/C)

技術文件

找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 5
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 OPA818 2.7GHz, High-Voltage, FET-Input, Low-Noise, Operational Amplifier datasheet (Rev. B) PDF | HTML 2025/12/9
Application brief Biasing an APD With OPA596 PDF | HTML 2026/2/9
Product overview High Speed Amplifiers for In-Vitro Diagnostics (IVD) Analog Front End PDF | HTML 2025/4/10
應用說明 High Speed ADCs and Amplifiers for Flow Cytometry Applications 2020/10/12
技術文章 3 common questions when designing with high-speed amplifiers PDF | HTML 2020/7/17

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

OPA818DRGEVM — OPA818 評估模組

OPA818DRG EVM 是採用 DRG (8 針腳 WSON) 封裝之單 OPA818 的評估模組。OPA818DRG EVM 可快速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。預設的放大器配置為 7 倍非反相增益配置和分離式電源。EVM 可以輕鬆配置為其他增益和單電源操作。
使用指南: PDF
支援產品和硬體
有庫存
限制：
??asset.out-of-stock-ti_zh_TW??
無法提供
模擬型號

OPA818 TINA-TI Spice Model (Rev. A)

SBOMAZ1A.TSM (14 KB) - TINA-TI Spice 模型
支援產品和硬體
模擬型號

OPA818 Unencrypted TINA-TI Reference Design Package (Rev. A)

SBOMB21A.TSC (172 KB) - TINA-TI 參考設計
支援產品和硬體
模擬型號

PSPICE Circuit Containing OPA818 Model (Rev. B)

SBOMB74B.ZIP (31 KB) - PSpice 模型
支援產品和硬體
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。

支援產品和硬體
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-23 (DBV) 5 Ultra Librarian
WSON (DRG) 8 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

訂購與品質

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片