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

OPA694

現行

寬頻、低功耗、電流回饋放大器

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產品規格表

OPA694

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) 7 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12.6 GBW (typ) (MHz) 1500 BW at Acl (MHz) 1500 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 1700 Vn at flatband (typ) (nV√Hz) 2.1 Vn at 1 kHz (typ) (nV√Hz) 2.1 Iq per channel (typ) (mA) 5.8 Vos (offset voltage at 25°C) (max) (mV) 3 Rail-to-rail No Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 60 Input bias current (max) (pA) 20000000 Offset drift (typ) (µV/°C) 15 Iout (typ) (mA) 80 2nd harmonic (dBc) 68 3rd harmonic (dBc) 72 Frequency of harmonic distortion measurement (MHz) 5
Architecture Current FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 7 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12.6 GBW (typ) (MHz) 1500 BW at Acl (MHz) 1500 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 1700 Vn at flatband (typ) (nV√Hz) 2.1 Vn at 1 kHz (typ) (nV√Hz) 2.1 Iq per channel (typ) (mA) 5.8 Vos (offset voltage at 25°C) (max) (mV) 3 Rail-to-rail No Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 60 Input bias current (max) (pA) 20000000 Offset drift (typ) (µV/°C) 15 Iout (typ) (mA) 80 2nd harmonic (dBc) 68 3rd harmonic (dBc) 72 Frequency of harmonic distortion measurement (MHz) 5
SOIC (D) 8 29.4 mm² 4.9 x 6 SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • UNITY GAIN STABLE BANDWIDTH: 1.5GHz
  • HIGH GAIN OF 2V/V BANDWIDTH: 690MHz
  • LOW SUPPLY CURRENT: 5.8mA
  • HIGH SLEW RATE: 1700V/µsec
  • HIGH FULL-POWER BANDWIDTH: 675MHz
  • LOW DIFFERENTIAL GAIN/PHASE: 0.03%/0.015°
  • Pb-FREE AND GREEN SOT23-5 PACKAGE
  • APPLICATIONS
    • WIDEBAND VIDEO LINE DRIVER
    • MATRIX SWITCH BUFFER
    • DIFFERENTIAL RECEIVER
    • ADC DRIVER
    • IMPROVED REPLACEMENT FOR OPA658
  • UNITY GAIN STABLE BANDWIDTH: 1.5GHz
  • HIGH GAIN OF 2V/V BANDWIDTH: 690MHz
  • LOW SUPPLY CURRENT: 5.8mA
  • HIGH SLEW RATE: 1700V/µsec
  • HIGH FULL-POWER BANDWIDTH: 675MHz
  • LOW DIFFERENTIAL GAIN/PHASE: 0.03%/0.015°
  • Pb-FREE AND GREEN SOT23-5 PACKAGE
  • APPLICATIONS
    • WIDEBAND VIDEO LINE DRIVER
    • MATRIX SWITCH BUFFER
    • DIFFERENTIAL RECEIVER
    • ADC DRIVER
    • IMPROVED REPLACEMENT FOR OPA658

The OPA694 is an ultra-wideband, low-power, current feedback operational amplifier featuring high slew rate and low differential gain/phase errors. An improved output stage provides ±80mA output drive with < 1.5V output voltage headroom. Low supply current with > 500MHz bandwidth meets the requirements of high-density video routers. Being a current feedback design, the OPA694 holds its bandwidth to very high gains—at a gain of 10, the OPA694 will still provide 200MHz bandwidth.

RF applications can use the OPA694 as a low-power SAW pre-amplifier. Extremely high 3rd-order intercept is provided through 70MHz at much lower quiescent power than many typical RF amplifiers.

The OPA694 is available in an industry-standard pinout in both SO-8 and SOT23-5 packages.

The OPA694 is an ultra-wideband, low-power, current feedback operational amplifier featuring high slew rate and low differential gain/phase errors. An improved output stage provides ±80mA output drive with < 1.5V output voltage headroom. Low supply current with > 500MHz bandwidth meets the requirements of high-density video routers. Being a current feedback design, the OPA694 holds its bandwidth to very high gains—at a gain of 10, the OPA694 will still provide 200MHz bandwidth.

RF applications can use the OPA694 as a low-power SAW pre-amplifier. Extremely high 3rd-order intercept is provided through 70MHz at much lower quiescent power than many typical RF amplifiers.

The OPA694 is available in an industry-standard pinout in both SO-8 and SOT23-5 packages.
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重要文件 類型 標題 格式選項 日期
* Data sheet Wideband, Low Power, Current Feedback Operational Amplifier datasheet (Rev. G) 2010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 RLC Filter Design for ADC Interface Applications (Rev. A) 2015年 5月 13日
User guide DEM-OPA-SO-1B User's Guide (Rev. D) 2012年 4月 12日
User guide DEM-OPA-SOT-1B User's Guide (Rev. B) 2006年 4月 12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 Measuring Board Parasitics in High-Speed Analog Design 2003年 7月 7日
Application note Current Feedback Amplifiers: Review, Stability Analysis, and Applications 2000年 11月 20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

OPA694 PSpice Model (Rev. B)

SBOC068B.ZIP (22 KB) - PSpice Model
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模擬型號

OPAy694 Family TINA-TI Reference Design (Rev. A)

SBOM446A.TSC (2316 KB) - TINA-TI Reference Design
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模擬型號

OPAy694 Family TINA-TI Spice Model (Rev. A)

SBOM445A.ZIP (5 KB) - TINA-TI Spice Model
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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 (...)
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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 (...)
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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
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOIC (D) 8 Ultra Librarian
SOT-23 (DBV) 5 Ultra Librarian
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