首頁 放大器 運算放大器 (op amps) 音訊運算放大器
首頁
放大器
運算放大器 (op amps)
音訊運算放大器

OPA1688

現行

36V、10MHz 低失真高驅動軌對軌輸出音訊運算放大器

立即訂購
產品規格表

OPA1688

現行
立即訂購

產品詳細資料

Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 GBW (typ) (MHz) 10 Slew rate (typ) (V/µs) 8 Rail-to-rail In to V-, Out Vos (offset voltage at 25°C) (max) (mV) 1.5 Iq per channel (typ) (mA) 1.6 Vn at 1 kHz (typ) (nV√Hz) 8 Features Burr-Brown™ Audio, EMI Hardened, High Cload Drive, Premium Sound, Small Size THD + N at 1 kHz (typ) (%) 0.00005 Rating Catalog Operating temperature range (°C) -40 to 85 Iout (typ) (A) 0.075 Product type Essential Architecture CMOS CMRR (typ) (dB) 120 Input bias current (max) (pA) 20
Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 GBW (typ) (MHz) 10 Slew rate (typ) (V/µs) 8 Rail-to-rail In to V-, Out Vos (offset voltage at 25°C) (max) (mV) 1.5 Iq per channel (typ) (mA) 1.6 Vn at 1 kHz (typ) (nV√Hz) 8 Features Burr-Brown™ Audio, EMI Hardened, High Cload Drive, Premium Sound, Small Size THD + N at 1 kHz (typ) (%) 0.00005 Rating Catalog Operating temperature range (°C) -40 to 85 Iout (typ) (A) 0.075 Product type Essential Architecture CMOS CMRR (typ) (dB) 120 Input bias current (max) (pA) 20
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm) WSON (DRG) 8 9 mm² (3 mm × 3 mm)
  • THD+N, 50 mW, 32 Ω, 1 kHz, –109 dB
  • Wide supply range:
    • 4.5 V to 36 V, ±2.25 V to ±18 V
  • Low offset voltage: ±0.25 mV
  • Low offset drift: ±0.5 µV/°C
  • Gain bandwidth: 10 MHz
  • Low input bias current: ±10 pA
  • Low quiescent current: 1.6 mA per amplifier
  • Low noise: 8 nV/√Hz
  • EMI- and RFI-filtered inputs
  • Input range includes negative supply
  • Input range operates to positive supply
  • Rail-to-rail output
  • High common-mode rejection: 120 dB
  • Packages:
    • Industry-standard SOIC-8
    • micro WSON-8
  • THD+N, 50 mW, 32 Ω, 1 kHz, –109 dB
  • Wide supply range:
    • 4.5 V to 36 V, ±2.25 V to ±18 V
  • Low offset voltage: ±0.25 mV
  • Low offset drift: ±0.5 µV/°C
  • Gain bandwidth: 10 MHz
  • Low input bias current: ±10 pA
  • Low quiescent current: 1.6 mA per amplifier
  • Low noise: 8 nV/√Hz
  • EMI- and RFI-filtered inputs
  • Input range includes negative supply
  • Input range operates to positive supply
  • Rail-to-rail output
  • High common-mode rejection: 120 dB
  • Packages:
    • Industry-standard SOIC-8
    • micro WSON-8

The OPA1688 36-V, single-supply, low-noise SoundPlus™ audio operational amplifier is capable of operating on supplies ranging from 4.5 V (±2.25 V) to 36 V (±18 V). This latest addition of a high-voltage audio operational amplifier in conjunction with the OPA16xx devices provide a family of bandwidth, noise, and power options to meet the needs of a wide variety of applications. The OPA1688 is available in a WSON micropackage, and offers low offset, drift, and quiescent current. This device also offers wide bandwidth, fast slew rate, and high output current drive capability.

Unlike most op amps that are specified at only one supply voltage, the OPA1688 is specified from 4.5 V to 36 V. Input signals beyond the supply rails do not cause phase reversal. The input can operate 100 mV below the negative rail and within 2 V of the top rail during normal operation. Note that this device can operate with full rail-to-rail input 100 mV beyond the top rail, but with reduced performance within 2 V of the top rail.

The OPA1688 is specified from –40°C to +85°C.

The OPA1688 36-V, single-supply, low-noise SoundPlus™ audio operational amplifier is capable of operating on supplies ranging from 4.5 V (±2.25 V) to 36 V (±18 V). This latest addition of a high-voltage audio operational amplifier in conjunction with the OPA16xx devices provide a family of bandwidth, noise, and power options to meet the needs of a wide variety of applications. The OPA1688 is available in a WSON micropackage, and offers low offset, drift, and quiescent current. This device also offers wide bandwidth, fast slew rate, and high output current drive capability.

Unlike most op amps that are specified at only one supply voltage, the OPA1688 is specified from 4.5 V to 36 V. Input signals beyond the supply rails do not cause phase reversal. The input can operate 100 mV below the negative rail and within 2 V of the top rail during normal operation. Note that this device can operate with full rail-to-rail input 100 mV beyond the top rail, but with reduced performance within 2 V of the top rail.

The OPA1688 is specified from –40°C to +85°C.
filter 尋找其它 音訊運算放大器
下載 觀看有字幕稿的影片 影片

您可能會感興趣的類似產品

open-in-new 比較替代產品
具備升級功能，可直接投入使用替代所比較的裝置。
OPA1678 現行 低失真 (-120 dB)、低雜訊 (4.5nV/rtHz)、雙路音訊運算放大器 This product is a lower priced pin-to-pin audio op amp.
OPA1656 現行 SoundPlus™ 超低雜訊與失真、Burr-Brown™ 音訊運算放大器 Pin-to-pin device with higher output drive (100 mA), higher bandwidth (53 MHz) and lower noise (4.3 nV/vHz).

技術文件

找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 5
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 OPA1688 36-V, Single-Supply, 10-MHz, Rail-to-Rail Output, SoundPlus™ Audio Operational Amplifier datasheet (Rev. A) PDF | HTML 2022/6/20
Application brief Understanding Op Amp Noise in Audio Circuits PDF | HTML 2021/6/14
應用說明 HiFi Audio Circuit Design 2017/8/23
電子書 The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML 2017/3/28
電子書 Analog Engineer’s Pocket Reference Guide Fifth Edition (Rev. D) PDF | HTML 2014/9/30

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

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
支援產品和硬體
開發板

OPA1688EVM — OPA1688 SoundPlus 音訊運算放大器評估模組

OPA1688EVM 是用於評估 OPA1688 音訊運算放大器性能的硬體平台。在 EVM 中，OPA1688 的每個通道皆配置為差動放大器，可接收來自音訊分析器或音訊 DAC 的差動輸入訊號，並輸出單端訊號。OPA1688EVM 包含耳機輸出，使用者可使用自己選擇的耳機聆聽 OPA1688 的音質。OPA1688EVM 具備高輸出電流及強大的電容驅動能力，可驅動 8Ω、16Ω、32Ω、300Ω、600Ω 及更高的耳機負載。
使用指南: PDF
支援產品和硬體
有庫存
限制：
??asset.out-of-stock-ti_zh_TW??
無法提供
模擬型號

OPA168x PSpice Model (Rev. E)

SBOM950E.ZIP (30 KB) - PSpice 模型
支援產品和硬體
模擬型號

OPA168x TINA-TI Reference Design (Rev. D)

SBOM952D (324 KB) - TINA-TI 參考設計
支援產品和硬體
模擬型號

OPA168x TINA-TI Spice Model (Rev. D)

SBOM951D.ZIP (11 KB) - TINA-TI Spice 模型
支援產品和硬體
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。

支援產品和硬體
參考設計

TIPD189 — 用於電壓輸出音訊 DAC 的耳機放大器參考設計

此參考設計詳細說明適用於智慧型手機和平板電腦等可攜式應用的高保真耳機放大器電路。此設計採用具有低功耗和超小型封裝的運算放大器 (op amp)，將差動輸出電壓轉換成耳機適用的單端訊號。該設計在 32Ω 耳機的輸出功率 >50mW 時可達到 -110.2dB THD+N。

支援產品和硬體
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOIC (D) 8 Ultra Librarian
WSON (DRG) 8 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

訂購與品質

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片