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 x 2.8 WSON (DRG) 8 9 mm² 3 x 3
  • 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
引腳對引腳且具備與所比較裝置相同的功能
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

star =TI 所選的此產品重要文件
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 日期
* Data sheet OPA818 2.7GHz, High-Voltage, FET-Input, Low-Noise, Operational Amplifier datasheet (Rev. B) PDF | HTML 2025年 12月 9日
Product overview High Speed Amplifiers for In-Vitro Diagnostics (IVD) Analog Front End PDF | HTML 2025年 4月 10日
Application note High Speed ADCs and Amplifiers for Flow Cytometry Applications 2020年 10月 12日
Technical article 3 common questions when designing with high-speed amplifiers PDF | HTML 2020年 7月 17日
Application note Noise Analysis for High Speed Op Amps (Rev. A) 2005年 1月 17日

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
TI.com 無法提供
模擬型號

OPA818 TINA-TI Spice Model (Rev. A)

SBOMAZ1A.TSM (14 KB) - TINA-TI Spice Model
下載
模擬型號

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

SBOMB21A.TSC (172 KB) - TINA-TI Reference Design
下載
模擬型號

PSPICE Circuit Containing OPA818 Model (Rev. B)

SBOMB74B.ZIP (31 KB) - PSpice Model
下載
計算工具

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

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)

支援產品和硬體

支援產品和硬體
啟動 下載
計算工具

VOLT-DIVIDER-CALC — Voltage divider calculation tool

The voltage divider calculation tool (VOLT-DIVIDER-CALC) quickly determines a set of resistors for a voltage divider. This KnowledgeBase JavaScript utility can be used to find a set of resistors for a voltage divider to achieve the desired output voltage. VOLT-DIVIDER-CALC can also be used to (...)
立即進行設計
模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

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 (...)
要求
模擬工具

TINA-TI — 基於 SPICE 的類比模擬程式

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
使用指南: PDF
View Options
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

內含資訊：
  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中的可靠性監測
內含資訊：
  • 晶圓廠位置
  • 組裝地點

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