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運算放大器 (op amps)
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OPA1611

現行

1.1nV/√Hz 雜訊、低功耗精密運算放大器

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產品規格表

OPA1611

現行
產品規格表 立即訂購

產品詳細資料

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) 36 GBW (typ) (MHz) 40 Slew rate (typ) (V/µs) 27 Rail-to-rail Out Vos (offset voltage at 25°C) (max) (mV) 0.5 Iq per channel (typ) (mA) 3.6 Vn at 1 kHz (typ) (nV√Hz) 1.1 Features Burr-Brown™ Audio, Premium Sound THD + N at 1 kHz (typ) (%) 0.000015 Rating Catalog Operating temperature range (°C) -40 to 85 Iout (typ) (A) 0.055 Product type Ultimate Architecture Bipolar CMRR (typ) (dB) 120 Input bias current (max) (pA) 250000
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) 36 GBW (typ) (MHz) 40 Slew rate (typ) (V/µs) 27 Rail-to-rail Out Vos (offset voltage at 25°C) (max) (mV) 0.5 Iq per channel (typ) (mA) 3.6 Vn at 1 kHz (typ) (nV√Hz) 1.1 Features Burr-Brown™ Audio, Premium Sound THD + N at 1 kHz (typ) (%) 0.000015 Rating Catalog Operating temperature range (°C) -40 to 85 Iout (typ) (A) 0.055 Product type Ultimate Architecture Bipolar CMRR (typ) (dB) 120 Input bias current (max) (pA) 250000
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Superior Sound Quality
  • Ultralow Noise: 1.1 nV/√Hz at 1 kHz
  • Ultralow Distortion:
    0.000015% at 1 kHz
  • High Slew Rate: 27 V/μs
  • Wide Bandwidth: 40 MHz (G = +1)
  • High Open-Loop Gain: 130 dB
  • Unity Gain Stable
  • Low Quiescent Current:
    3.6 mA per Channel
  • Rail-to-Rail Output
  • Wide Supply Range: ±2.25 V to ±18 V
  • Single and Dual Versions Available
  • Superior Sound Quality
  • Ultralow Noise: 1.1 nV/√Hz at 1 kHz
  • Ultralow Distortion:
    0.000015% at 1 kHz
  • High Slew Rate: 27 V/μs
  • Wide Bandwidth: 40 MHz (G = +1)
  • High Open-Loop Gain: 130 dB
  • Unity Gain Stable
  • Low Quiescent Current:
    3.6 mA per Channel
  • Rail-to-Rail Output
  • Wide Supply Range: ±2.25 V to ±18 V
  • Single and Dual Versions Available

The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1.1-nV/√Hz noise density with an ultralow distortion of 0.000015% at 1 kHz. The OPA1611 and OPA1612 offer rail-to-rail output swing to within 600 mV with a 2-kΩ load, which increases headroom and maximizes dynamic range. These devices also have a high output drive capability of ±30 mA.

These devices operate over a very wide supply range of ±2.25 V to ±18 V, on only 3.6 mA of supply current per channel. The OPA1611 and OPA1612 op amps are unity-gain stable and provide excellent dynamic behavior over a wide range of load conditions.

The dual version features completely independent circuitry for lowest crosstalk and freedom from interactions between channels, even when overdriven or overloaded.

Both the OPA1611 and OPA1612 are available in SOIC-8 packages and the OPA1612 is available in SON-8. These devices are specified from –40°C to +85°C.

The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1.1-nV/√Hz noise density with an ultralow distortion of 0.000015% at 1 kHz. The OPA1611 and OPA1612 offer rail-to-rail output swing to within 600 mV with a 2-kΩ load, which increases headroom and maximizes dynamic range. These devices also have a high output drive capability of ±30 mA.

These devices operate over a very wide supply range of ±2.25 V to ±18 V, on only 3.6 mA of supply current per channel. The OPA1611 and OPA1612 op amps are unity-gain stable and provide excellent dynamic behavior over a wide range of load conditions.

The dual version features completely independent circuitry for lowest crosstalk and freedom from interactions between channels, even when overdriven or overloaded.

Both the OPA1611 and OPA1612 are available in SOIC-8 packages and the OPA1612 is available in SON-8. These devices are specified from –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 OPA161x SoundPlus High-Performance, Bipolar-Input Audio Operational Amplifiers datasheet (Rev. C) PDF | HTML 2014年 8月 27日
Application note How to Measure Total Harmonic Distortion of an Op-Amp and THD + N Fundamentals PDF | HTML 2023年 11月 9日
Application brief Understanding Op Amp Noise in Audio Circuits PDF | HTML 2021年 6月 14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 Compensate Transimpedance Amplifiers Intuitively (Rev. A) 2005年 3月 30日
Application note Feedback Plots Define Op Amp AC Performance 2000年 9月 27日

設計與開發

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開發板

AMP-PDK-EVM — 放大器性能開發套件評估模組

放大器性能開發套件 (PDK) 是一款評估模組 (EVM) 套件，可測試通用運算放大器 (op amp) 參數，並與大多數運算放大器和比較器相容。EVM 套件提供主板和多個插槽式子卡選項，可滿足封裝需求，使工程師能夠快速評估和驗證裝置性能。

AMP-PDK-EVM 套件支援五種最熱門的業界標準封裝，包括：

  • D (SOIC-8 和 SOIC-14)
  • PW (TSSOP-14)
  • DGK (VSSOP-8)
  • DBV (SOT23-5 和 SOT23-6)
  • DCK (SC70-5 和 SC70-6)
使用指南: PDF | HTML
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模擬型號

OPA161x PSpice Model (Rev. G)

SBOM396G.ZIP (27 KB) - PSpice Model
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模擬型號

OPA161x TINA-TI Reference Design (Rev. F)

SBOM398F.TSC (302 KB) - TINA-TI Reference Design
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模擬型號

OPA161x TINA-TI SPICE Model (Rev. F)

SBOM397F.ZIP (11 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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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
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參考設計

TIPD118 — 帶通濾波 -40dB 衰減器、<0.1dB 誤差

This TI Verified Design is a -40dB band-pass filtered inverting attenuator. The circuit creates a filtered, inverted, and attenuated output from a single-ended input signal that can be used for test and measurement, or other waveform generation applications. A single low-noise OPA1611 op amp is (...)
使用指南: 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
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