OPA695

現行

具停用功能的超寬頻電流回饋運算放大器

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 x 6 SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8 VSSOP (DGK) 8 14.7 mm² 3 x 4.9 WSON (DSG) 8 4 mm² 2 x 2
  • 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 日期
* Data sheet OPA695 Ultra-Wideband, Current-Feedback Operational Amplifier With Disable datasheet (Rev. J) PDF | HTML 2025年 3月 31日
Application note Input Voltage Effects on Slew Rate for Voltage and Current Feedback Amplifiers PDF | HTML 2025年 1月 15日
Technical article 3 common questions when designing with high-speed amplifiers PDF | HTML 2020年 7月 17日
E-book The Signal e-book: A compendium of blog posts on op amp design topics 2017年 3月 28日
Application note Design for a Wideband Differential Transimpedance DAC Output (Rev. A) 2016年 10月 17日
Application note Wideband Complementary Current Output DAC Single-Ended Interface (Rev. A) 2015年 5月 8日
Design guide Wide-Bandwidth and High-Voltage Arbitrary Waveform Generator Front End 2013年 9月 3日
User guide DEM-OPA-SO-1B User's Guide (Rev. D) 2012年 4月 12日
Application note Wireline Data Transmission and Reception 2010年 1月 27日
User guide DEM-OPA-SOT-1B User's Guide (Rev. B) 2006年 4月 12日
Analog Design Journal Low-power, high-intercept interface to the ADS5424, 105-MSPS converter 2005年 10月 10日
Analog Design Journal Designing for low distortion with high-speed op amps 2005年 3月 2日
Analog Design Journal Expanding the usability of current-feedback amplifiers 2005年 2月 28日
Analog Design Journal Active filters using current-feedback amplifiers 2005年 2月 25日
Application note Noise Analysis for High Speed Op Amps (Rev. A) 2005年 1月 17日
Application note Stabilizing Current-Feedback Op Amps While Optimizing Circuit Performance 2004年 4月 28日
Application note ADS5500, OPA695: PC Board Layout for Low Distortion High-Speed ADC Drivers 2004年 4月 22日
Application note Measuring Board Parasitics in High-Speed Analog Design 2003年 7月 7日
Application note Voltage Feedback vs. Current Feedback Op Amps 1998年 11月 30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

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.

For more (...)

使用指南: PDF
TI.com 無法提供
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.

使用指南: PDF
TI.com 無法提供
模擬型號

OPA695 ADS2009 Spice Model

SBOJ015.ZIP (33 KB) - Spice Model
模擬型號

OPA695 PSpice Model (Rev. D)

SBOC036D.ZIP (30 KB) - PSpice Model
模擬型號

OPAy695 TINA-TI Reference Design

SBOM386.TSC (55 KB) - TINA-TI Reference Design
模擬型號

OPAy695 TINA-TI Spice Model

SBOM387.TSM (8 KB) - TINA-TI Spice Model
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 (...)

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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 (...)
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 (...)
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
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。
Design guide: PDF
電路圖: PDF
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。
Design guide: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOIC (D) 8 Ultra Librarian
SOT-23 (DBV) 6 Ultra Librarian
VSSOP (DGK) 8 Ultra Librarian
WSON (DSG) 8 Ultra Librarian

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內含資訊:
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  • 認證摘要
  • 進行中的可靠性監測
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