OPA171

現行

單路、36-V、3-MHz、低功耗運算放大器

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OPA991 現行 單路、40V、4.5MHz、低功率運算放大器 Rail-to-rail I/O, wider supply range (2.7 V to 40 V), higher GBW (4.5 MHz), lower offset voltage (0.75 mV), lower noise (10.8 nV/√Hz)

產品詳細資料

Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Rail-to-rail In to V-, Out GBW (typ) (MHz) 3 Slew rate (typ) (V/µs) 1.5 Vos (offset voltage at 25°C) (max) (mV) 1.8 Iq per channel (typ) (mA) 0.475 Vn at 1 kHz (typ) (nV√Hz) 14 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 0.3 Features EMI Hardened, Small Size Input bias current (max) (pA) 15 CMRR (typ) (dB) 120 Iout (typ) (A) 0.025 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) -2 Output swing headroom (to negative supply) (typ) (V) 0.03 Output swing headroom (to positive supply) (typ) (V) -0.35
Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Rail-to-rail In to V-, Out GBW (typ) (MHz) 3 Slew rate (typ) (V/µs) 1.5 Vos (offset voltage at 25°C) (max) (mV) 1.8 Iq per channel (typ) (mA) 0.475 Vn at 1 kHz (typ) (nV√Hz) 14 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 0.3 Features EMI Hardened, Small Size Input bias current (max) (pA) 15 CMRR (typ) (dB) 120 Iout (typ) (A) 0.025 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) -2 Output swing headroom (to negative supply) (typ) (V) 0.03 Output swing headroom (to positive supply) (typ) (V) -0.35
SOT-5X3 (DRL) 5 2.56 mm² (1.6 mm × 1.6 mm) SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm) SOT-23 (DBV) 5 8.12 mm² (2.9 mm × 2.8 mm)
  • Supply range: 2.7V to 36V, ±1.35V to ±18V
  • Low noise: 14nV/√ Hz
  • Low offset drift: ±0.3µV/°C (Typical)
  • RFI filtered inputs
  • Input range includes the negative supply
  • Input range operates to positive supply
  • Rail-to-rail output
  • Gain bandwidth: 3MHz
  • Low quiescent current: 475µA per amplifier
  • High common-mode rejection: 120dB (typical)
  • Low-input bias current: 8pA
  • Industry-standard packages:
    • 5-pin SOT-23
    • 8-pin SOIC
    • 14-pin TSSOP
  • microPackages:
    • Single in SOT-553
    • Dual in VSSOP-8
  • Supply range: 2.7V to 36V, ±1.35V to ±18V
  • Low noise: 14nV/√ Hz
  • Low offset drift: ±0.3µV/°C (Typical)
  • RFI filtered inputs
  • Input range includes the negative supply
  • Input range operates to positive supply
  • Rail-to-rail output
  • Gain bandwidth: 3MHz
  • Low quiescent current: 475µA per amplifier
  • High common-mode rejection: 120dB (typical)
  • Low-input bias current: 8pA
  • Industry-standard packages:
    • 5-pin SOT-23
    • 8-pin SOIC
    • 14-pin TSSOP
  • microPackages:
    • Single in SOT-553
    • Dual in VSSOP-8

The OPA171, OPA2171, and OPA4171 (OPAx171) are a family of 36V, single-supply, low-noise operational amplifiers with the ability to operate on supplies ranging from 2.7V (±1.35V) to 36V (±18V). These devices are available in micro-packages and offer low offset, drift, and bandwidth with low quiescent current. The single, dual, and quad versions all have identical specifications for maximum design flexibility.

Unlike most operational amplifiers, which are specified at only one supply voltage, the OPAx171 family is specified from 2.7V to 36V. Input signals beyond the supply rails do not cause phase reversal. The OPAx171 family is stable with capacitive loads up to 300pF. The input can operate 100mV below the negative rail and within 2V of the top rail during normal operation. These devices can operate with full rail-to-rail input 100mV beyond the top rail, but with reduced performance within 2V of the top rail.

The OPAx171 series of operational amplifiers are specified from –40°C to +125°C.

The OPA171, OPA2171, and OPA4171 (OPAx171) are a family of 36V, single-supply, low-noise operational amplifiers with the ability to operate on supplies ranging from 2.7V (±1.35V) to 36V (±18V). These devices are available in micro-packages and offer low offset, drift, and bandwidth with low quiescent current. The single, dual, and quad versions all have identical specifications for maximum design flexibility.

Unlike most operational amplifiers, which are specified at only one supply voltage, the OPAx171 family is specified from 2.7V to 36V. Input signals beyond the supply rails do not cause phase reversal. The OPAx171 family is stable with capacitive loads up to 300pF. The input can operate 100mV below the negative rail and within 2V of the top rail during normal operation. These devices can operate with full rail-to-rail input 100mV beyond the top rail, but with reduced performance within 2V of the top rail.

The OPAx171 series of operational amplifiers are specified from –40°C to +125°C.

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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 OPAx171 36V, Single-Supply, SOT-553, General-Purpose Operational Amplifiers datasheet (Rev. H) PDF | HTML 2024/6/5
Application brief Using An Op Amp for High-Side Current Sensing (Rev. A) PDF | HTML 2021/12/7
Circuit design Noninverting amplifier circuit (Rev. A) PDF | HTML 2019/1/31
電子書 The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML 2017/3/28
應用說明 OPA171 EMI Immunity Performance 2016/3/29
更多文件說明 Precision Amplifier Quickstart Kit brochure (Rev. A) 2015/1/13

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
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開發板

DIP-ADAPTER-EVM — DIP 轉接器評估模組

Speed up your op amp prototyping and testing with the DIP-Adapter-EVM, which provides a fast, easy and inexpensive way to interface with small, surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them directly to existing circuits.

The (...)

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開發板

DIYAMP-EVM — 通用自製 (DIY) 放大器電路評估模組

DIYAMP-EVM 是一系列評估模組 (EVM),提供工程師與自組愛好者 (DIYers) 實作型放大器電路,協助快速驗證設計概念並模擬結果。提供三種業界標準封裝(SC70、SOT-23 和 SOIC)與 12 種常見放大器配置,支援單電源與雙電源架構的放大器、濾波器、穩定補償與比較器應用。

DIYAMP-EVM 可快速製作電路原型,並採用常見的 0805 或 0603 表面裝載元件。透過多種組合方式,此 EVM 可建立從簡單放大器電路到複雜訊號鏈的各種評估電路。此 EVM 支援模擬板、超微型 A 版 (SMA)、接頭和有線介面連接方式,並與大多數類比數位轉換器 (ADC) (...)

使用指南: PDF | HTML
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模擬型號

OPAx171 Family PSpice Model (Rev. C)

SBOM440C.ZIP (32 KB) - PSpice 模型
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模擬型號

OPAy171 Family TINA-TI Reference Design (Rev. C)

SBOM442C.TSC (357 KB) - TINA-TI 參考設計
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模擬型號

OPAy171 Family TINA-TI Spice Model (Rev. B)

SBOM441B.ZIP (8 KB) - TINA-TI Spice 模型
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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。

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設計工具

CIRCUIT060022 — 非反向放大器電路

此設計可放大輸入訊號 Vi,訊號增益為 10 V/V。輸入訊號可能來自高阻抗來源 (例如 MΩ),因為此電路的輸入阻抗是由運算放大器的極高輸入阻抗 (例如 GΩ) 所決定。非反向放大器的共模電壓等於輸入訊號。

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設計工具

SBOC493 — Simulation for Noninverting Amplifier Circuit

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參考設計

TIDC-EVSE-NFC — 適用於電動汽車充電站 (充電樁) 的 NFC 驗證參考設計

TIDC-EVSE-NFC 參考設計 展現了 TI NFC 技術與現有 EVSE 平台的直接整合,以啟用使用者驗證。NFC 標準包含許多不同的子技術和工作群組,因此難以整合至特定系統。我們可運用經過實證的參考設計,以及在此設計中經過認證的軟體,確保符合標準並簡化開發程序。此設計僅整合操作系統的基本功能,但隨附的範例軟體顯示將 NFC 整合至 EVSE 設計有多麼簡單。
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參考設計

TIDC-EVSE-WIFI — 支援 Wi-Fi 的 Level 1 和 Level 2 電動車維修設備參考設計

經 TIDC-EVSE-Wi-Fi® 驗證的參考設計,詳細說明如何以新增 Wi-Fi 功能,執行符合 J1772 標準的第 1 級與第 2 級電動車維修設備 (EVSE)。CC3100 網路處理器可讓 EVSE 等高度嵌入式裝置,輕鬆連接至現有無線網路或直接連接至裝置。透過將此功能整合在 EVSE 中,可讓此設計執行遠端電源監控,並控制連線電動車的充電狀態。
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-5X3 (DRL) 5 Ultra Librarian
SOIC (D) 8 Ultra Librarian
SOT-23 (DBV) 5 Ultra Librarian

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