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

OPA695

現行

具停用功能的超寬頻電流回饋運算放大器

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產品規格表

OPA695

現行
產品規格表 立即訂購

產品詳細資料

Architecture Current FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12 GBW (typ) (MHz) 1900 BW at Acl (MHz) 1900 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 5000 Vn at flatband (typ) (nV√Hz) 1.9 Vn at 1 kHz (typ) (nV√Hz) 2 Iq per channel (typ) (mA) 14 Vos (offset voltage at 25°C) (max) (mV) 3 Rail-to-rail No Features Shutdown Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 65 Input bias current (max) (pA) 30000000 Offset drift (typ) (µV/°C) 3 Iout (typ) (mA) 140 2nd harmonic (dBc) 78 3rd harmonic (dBc) 86 Frequency of harmonic distortion measurement (MHz) 10
Architecture Current FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12 GBW (typ) (MHz) 1900 BW at Acl (MHz) 1900 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 5000 Vn at flatband (typ) (nV√Hz) 1.9 Vn at 1 kHz (typ) (nV√Hz) 2 Iq per channel (typ) (mA) 14 Vos (offset voltage at 25°C) (max) (mV) 3 Rail-to-rail No Features Shutdown Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 65 Input bias current (max) (pA) 30000000 Offset drift (typ) (µV/°C) 3 Iout (typ) (mA) 140 2nd harmonic (dBc) 78 3rd harmonic (dBc) 86 Frequency of harmonic distortion measurement (MHz) 10
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm) WSON (DSG) 8 4 mm² (2 mm × 2 mm) SOT-23 (DBV) 6 8.12 mm² (2.9 mm × 2.8 mm) VSSOP (DGK) 8 14.7 mm² (3 mm × 4.9 mm)
  • Wide bandwidth:
    • 1900MHz (G = +1V/V)
    • 600MHz (G = +8V/V)
  • Large-signal bandwidth (2VPP): 540MHz
  • Output voltage swing: ±4.05V
  • Ultra-high slew rate: 5000V/µs
  • Input voltage noise: 2nV/√Hz
  • Low distortion (RL = 100Ω, VO = 2VPP):
    • HD2, HD3 at 10MHz: –65dBc, –92dBc
  • High output current: ±140mA
  • Supply range: 5V to 12V
  • Supply current: 14mA
  • Shutdown current: 160µA
  • Wide bandwidth:
    • 1900MHz (G = +1V/V)
    • 600MHz (G = +8V/V)
  • Large-signal bandwidth (2VPP): 540MHz
  • Output voltage swing: ±4.05V
  • Ultra-high slew rate: 5000V/µs
  • Input voltage noise: 2nV/√Hz
  • Low distortion (RL = 100Ω, VO = 2VPP):
    • HD2, HD3 at 10MHz: –65dBc, –92dBc
  • High output current: ±140mA
  • Supply range: 5V to 12V
  • Supply current: 14mA
  • Shutdown current: 160µA

The OPA695 is a high bandwidth, current-feedback operational amplifier that combines an exceptional 5000V/µs slew rate and a low input voltage noise to deliver a precision, low-distortion, high dynamic range amplifier for use as intermediate gain stages in high-speed instrumentation systems. The OPA695 is optimized for high gain operation and is an excellent choice for interfacing current DAC output, or as gain stage in high-speed digitizers, or for delivering high output power at low distortion for cable-modem upstream line drivers.

The OPA695 features a low supply current of 14mA (at 25°C). System power can be further reduced using the optional disable control pin. Leaving this pin open, or holding this pin high, gives normal operation. If pulled low, the OPA695 supply current drops to less than 160µA. This power-saving feature, along with exceptional single 5V operation and ultra-small SOT23-6 packaging, make the OPA695 an excellent choice for portable applications.

The OPA695 is characterized for operation over the wide temperature range of –40°C to +85°C

The OPA695 is a high bandwidth, current-feedback operational amplifier that combines an exceptional 5000V/µs slew rate and a low input voltage noise to deliver a precision, low-distortion, high dynamic range amplifier for use as intermediate gain stages in high-speed instrumentation systems. The OPA695 is optimized for high gain operation and is an excellent choice for interfacing current DAC output, or as gain stage in high-speed digitizers, or for delivering high output power at low distortion for cable-modem upstream line drivers.

The OPA695 features a low supply current of 14mA (at 25°C). System power can be further reduced using the optional disable control pin. Leaving this pin open, or holding this pin high, gives normal operation. If pulled low, the OPA695 supply current drops to less than 160µA. This power-saving feature, along with exceptional single 5V operation and ultra-small SOT23-6 packaging, make the OPA695 an excellent choice for portable applications.

The OPA695 is characterized for operation over the wide temperature range of –40°C to +85°C
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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 OPA695 Ultra-Wideband, Current-Feedback Operational Amplifier With Disable datasheet (Rev. J) PDF | HTML 2025/3/31
應用說明 Input Voltage Effects on Slew Rate for Voltage and Current Feedback Amplifiers PDF | HTML 2025/1/15
技術文章 3 common questions when designing with high-speed amplifiers PDF | HTML 2020/7/17
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 Design for a Wideband Differential Transimpedance DAC Output (Rev. A) 2016/10/17
應用說明 Wideband Complementary Current Output DAC Single-Ended Interface (Rev. A) 2015/5/8
設計指南 Wide-Bandwidth and High-Voltage Arbitrary Waveform Generator Front End 2013/9/3
使用指南 DEM-OPA-SO-1B User's Guide (Rev. D) 2012/4/12
應用說明 Wireline Data Transmission and Reception 2010/1/27
使用指南 DEM-OPA-SOT-1B User's Guide (Rev. B) 2006/4/12
類比設計期刊 Low-power, high-intercept interface to the ADS5424, 105-MSPS converter 2005/10/10
類比設計期刊 Designing for low distortion with high-speed op amps 2005/3/2
類比設計期刊 Expanding the usability of current-feedback amplifiers 2005/2/28
類比設計期刊 Active filters using current-feedback amplifiers 2005/2/25
應用說明 Noise Analysis for High Speed Op Amps (Rev. A) 2005/1/17
應用說明 Stabilizing Current-Feedback Op Amps While Optimizing Circuit Performance 2004/4/28
應用說明 ADS5500, OPA695: PC Board Layout for Low Distortion High-Speed ADC Drivers 2004/4/22
應用說明 Measuring Board Parasitics in High-Speed Analog Design 2003/7/7
應用說明 Voltage Feedback vs. Current Feedback Op Amps 1998/11/30

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-1B — 適用於 SO-8 (非反相) 封裝的單路運算放大器評估模組

The DEM-OPA-SO-1B demonstration fixture in the non-inverting configuration helps designers evaluate the operation and performance of TI's single high speed, wideband 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-1B — 適用於 SOT23-5/6 (非反相) 封裝的單路運算放大器評估模組

The DEM-OPA-SOT-1B demonstration fixture in the non-inverting configuration helps designers evaluate the operation and performance of TI's single high speed, wideband operational amplifiers. This unpopulated PC board is compatible with products offered in the SOT23 (DBV) package.

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模擬型號

OPA695 ADS2009 Spice Model

SBOJ015.ZIP (33 KB) - Spice 模型
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模擬型號

OPA695 PSpice Model (Rev. D)

SBOC036D.ZIP (30 KB) - PSpice 模型
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模擬型號

OPAy695 TINA-TI Reference Design

SBOM386.TSC (55 KB) - TINA-TI 參考設計
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模擬型號

OPAy695 TINA-TI Spice Model

SBOM387.TSM (8 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-00075 — 高頻寬和高電壓任意波形產生器前端

此設計展示如何使用 DAC5682Z 電流汲極輸出的主動介面，其中的典型應用包括任意波形產生器的前端。EVM 包括用於數位轉類比轉換的 DAC5682Z、用於示範使用超寬頻運算放大器的主動介面實作的 OPA695，以及展示具有大電壓擺幅的運算放大器的 THS3091 和 THS3095。電路板上也包括用於產生時脈的 CDCM7005、VCXO 和參考，以及用於電壓調節的線性穩壓器。與 EVM 的通訊可透過 USB 介面和 GUI 軟體完成。

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參考設計

TIDA-01187 — 使用高速資料轉換器的光達脈衝飛時測距參考設計

用於高精度量測距離的飛時測距 (ToF) 光學方法適用於雷射安全掃描器、測距儀、無人機和導引系統等各種應用。此設計詳細說明高速資料轉換器解決方案的優點，其中包括目標識別、寬鬆的取樣率需求以及簡化的訊號鏈。此設計也可因應光學、驅動器和接收器前端電路、類比轉數位轉換器 (ADC)、數位轉類比轉換器 (DAC) 和訊號處理。
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOIC (D) 8 Ultra Librarian
WSON (DSG) 8 Ultra Librarian
SOT-23 (DBV) 6 Ultra Librarian
VSSOP (DGK) 8 Ultra Librarian
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