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

OPA2889

現行

具停用功能的雙路 115MHz 低功耗寬頻電壓回饋運算放大器

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產品規格表

OPA2889

現行
產品規格表 立即訂購

產品詳細資料

Architecture Voltage FB Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.6 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12 GBW (typ) (MHz) 115 BW at Acl (MHz) 115 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 250 Vn at flatband (typ) (nV√Hz) 8.4 Vn at 1 kHz (typ) (nV√Hz) 8.4 Iq per channel (typ) (mA) 0.46 Vos (offset voltage at 25°C) (max) (mV) 5 Rail-to-rail No Features Shutdown Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 70 Input bias current (max) (pA) 750000 Offset drift (typ) (µV/°C) 20 Iout (typ) (mA) 40 2nd harmonic (dBc) 75 3rd harmonic (dBc) 80 Frequency of harmonic distortion measurement (MHz) 1
Architecture Voltage FB Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.6 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12 GBW (typ) (MHz) 115 BW at Acl (MHz) 115 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 250 Vn at flatband (typ) (nV√Hz) 8.4 Vn at 1 kHz (typ) (nV√Hz) 8.4 Iq per channel (typ) (mA) 0.46 Vos (offset voltage at 25°C) (max) (mV) 5 Rail-to-rail No Features Shutdown Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 70 Input bias current (max) (pA) 750000 Offset drift (typ) (µV/°C) 20 Iout (typ) (mA) 40 2nd harmonic (dBc) 75 3rd harmonic (dBc) 80 Frequency of harmonic distortion measurement (MHz) 1
SOIC (D) 8 29.4 mm² 4.9 x 6 VSSOP (DGS) 10 14.7 mm² 3 x 4.9
  • FLEXIBLE SUPPLY RANGE:
    +2.6V to +12V Single Supply
    ±1.3V to ±6V Dual Supplies
  • UNITY-GAIN STABLE
  • WIDEBAND ±5V OPERATION: 60MHz
    (G = +2V/V)
  • OUTPUT VOLTAGE SWING: ±4V
  • HIGH SLEW RATE: 250V/µs
  • LOW QUIESCENT CURRENT: 460µA/ch
  • LOW DISABLE CURRENT: 18µA/ch
  • APPLICATIONS
    • VIDEO LINE DRIVING
    • xDSL LINE RECEIVERS
    • HIGH-SPEED IMAGING CHANNELS
    • ADC BUFFERS
    • PORTABLE INSTRUMENTS
    • TRANSIMPEDANCE AMPLIFIERS
    • ACTIVE FILTERS

All other trademarks are the property of their respective owners.
  • FLEXIBLE SUPPLY RANGE:
    +2.6V to +12V Single Supply
    ±1.3V to ±6V Dual Supplies
  • UNITY-GAIN STABLE
  • WIDEBAND ±5V OPERATION: 60MHz
    (G = +2V/V)
  • OUTPUT VOLTAGE SWING: ±4V
  • HIGH SLEW RATE: 250V/µs
  • LOW QUIESCENT CURRENT: 460µA/ch
  • LOW DISABLE CURRENT: 18µA/ch
  • APPLICATIONS
    • VIDEO LINE DRIVING
    • xDSL LINE RECEIVERS
    • HIGH-SPEED IMAGING CHANNELS
    • ADC BUFFERS
    • PORTABLE INSTRUMENTS
    • TRANSIMPEDANCE AMPLIFIERS
    • ACTIVE FILTERS

All other trademarks are the property of their respective owners.

The OPA2889 represents a major step forward in unity-gain stable, voltage-feedback op amps. A new internal architecture provides slew rate and full-power bandwidth previously found only in wideband, current-feedback op amps. These capabilities give exceptional full-power bandwidth. Using a dual ±5V supply, the OPA2889 can deliver a ±4V output swing with over 40mA drive current and 60MHz bandwidth. This combination of features makes the OPA2889 an ideal RGB line driver or single-supply analog-to-digital converter (ADC) input driver or low power twisted pair line receiver.

The low 460µA/ch supply current of the OPA2889 is precisely trimmed at +25°C. System power may be reduced further using the optional disable control pin. Leaving this disable pin open, or holding it HIGH, operates the OPA2889 normally. If pulled LOW, the OPA2889 supply current drops to less than 20µA/ch while the output goes into a high-impedance state.

The OPA2889 represents a major step forward in unity-gain stable, voltage-feedback op amps. A new internal architecture provides slew rate and full-power bandwidth previously found only in wideband, current-feedback op amps. These capabilities give exceptional full-power bandwidth. Using a dual ±5V supply, the OPA2889 can deliver a ±4V output swing with over 40mA drive current and 60MHz bandwidth. This combination of features makes the OPA2889 an ideal RGB line driver or single-supply analog-to-digital converter (ADC) input driver or low power twisted pair line receiver.

The low 460µA/ch supply current of the OPA2889 is precisely trimmed at +25°C. System power may be reduced further using the optional disable control pin. Leaving this disable pin open, or holding it HIGH, operates the OPA2889 normally. If pulled LOW, the OPA2889 supply current drops to less than 20µA/ch while the output goes into a high-impedance state.
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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 Dual, Low-Power, Wideband, Voltage-Feedback OPERATIONAL AMPLIFIER with Disable datasheet (Rev. B) 2008年 8月 28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 Making the Most of a Low-Power, High-Speed Operational Amplifier 2009年 11月 22日

設計與開發

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開發板

DEM-OPA-SO-2A — 適用於 SO-8 封裝的二路運算放大器評估模組

The DEM-OPA-SO-2A demonstration evaluation module helps designers evaluate the operation and performance of TI dual-channel, high-speed, wideband operational amplifiers. This unpopulated printed-circuit board (PCB) is compatible with products offered in the 8-lead SOIC (D) package.

For more (...)

使用指南: PDF
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模擬型號

OPA2889 PSpice Model (Rev. A)

SBOC231A.ZIP (2 KB) - PSpice Model
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模擬型號

OPA2889 TINA-TI Reference Design

SBOMA11.TSC (2228 KB) - TINA-TI Reference Design
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模擬型號

OPA2889 TINA-TI Spice Model

SBOMA10.ZIP (6 KB) - TINA-TI Spice Model
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模擬型號

OPA2889 Test Circuit (Tina Model)

SBOC254.ZIP (4 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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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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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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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
VSSOP (DGS) 10 Ultra Librarian
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