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運算放大器 (op amps)
一般用途運算放大器

TLV8544

現行

四路、3.6-V、8-kHz、超低靜態電流 (500-nA)、RRIO 運算放大器

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產品規格表

TLV8544

現行
立即訂購

產品詳細資料

Number of channels 4 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 3.6 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 1.7 Rail-to-rail In, Out GBW (typ) (MHz) 0.008 Slew rate (typ) (V/µs) 0.0035 Vos (offset voltage at 25°C) (max) (mV) 3.1 Iq per channel (typ) (mA) 0.0005 Vn at 1 kHz (typ) (nV√Hz) 264 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 0.8 Features Cost Optimized, EMI Hardened CMRR (typ) (dB) 75 Iout (typ) (A) 0.015 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) 0.00064 Input common mode headroom (to positive supply) (typ) (V) 0.0005 Output swing headroom (to negative supply) (typ) (V) 0.012 Output swing headroom (to positive supply) (typ) (V) -0.012
Number of channels 4 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 3.6 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 1.7 Rail-to-rail In, Out GBW (typ) (MHz) 0.008 Slew rate (typ) (V/µs) 0.0035 Vos (offset voltage at 25°C) (max) (mV) 3.1 Iq per channel (typ) (mA) 0.0005 Vn at 1 kHz (typ) (nV√Hz) 264 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 0.8 Features Cost Optimized, EMI Hardened CMRR (typ) (dB) 75 Iout (typ) (A) 0.015 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) 0.00064 Input common mode headroom (to positive supply) (typ) (V) 0.0005 Output swing headroom (to negative supply) (typ) (V) 0.012 Output swing headroom (to positive supply) (typ) (V) -0.012
SOIC (D) 14 51.9 mm² (8.65 mm × 6 mm) TSSOP (PW) 14 32 mm² (5 mm × 6.4 mm)
  • For Cost-Optimized Systems
  • Nanopower Supply Current: 500 nA per Channel
  • Offset Voltage: 3.1 mV (maximum)
  • TcVos: 0.8 µV/°C
  • Gain Bandwidth: 8 kHz
  • Unity-Gain Stable
  • Low Input-Bias Current: 100 fA
  • Wide Supply Range: 1.7 V to 3.6 V
  • Rail-to-Rail Input and Output (RRIO)
  • Temperature Range –40°C to +125°C
  • Industry Standard Package
    • Quad in 14-pin TSSOP and SOIC
    • Dual in 8-pin SOIC
    • Single in 5-pin SOT-23
  • Leadless Package
    • Dual in 8-Pin X2QFN
  • For Cost-Optimized Systems
  • Nanopower Supply Current: 500 nA per Channel
  • Offset Voltage: 3.1 mV (maximum)
  • TcVos: 0.8 µV/°C
  • Gain Bandwidth: 8 kHz
  • Unity-Gain Stable
  • Low Input-Bias Current: 100 fA
  • Wide Supply Range: 1.7 V to 3.6 V
  • Rail-to-Rail Input and Output (RRIO)
  • Temperature Range –40°C to +125°C
  • Industry Standard Package
    • Quad in 14-pin TSSOP and SOIC
    • Dual in 8-pin SOIC
    • Single in 5-pin SOT-23
  • Leadless Package
    • Dual in 8-Pin X2QFN

The TLV854x ultra-low-power operational amplifiers (op amps) are intended for cost-optimized sensing applications in wireless and low-power wired equipment. The TLV854x family of op amps minimize power consumption in equipment such as motion detecting security systems (like microwave and PIR motion sensing) where operational battery life is critical. They also have a carefully designed CMOS input stage, enabling very low, femto-ampere bias currents, thereby reducing IBIAS and IOS errors that would otherwise impact sensitive applications. Examples of these include transimpedance amplifier (TIA) configurations with megaohm feedback resistors, and high source impedance sensing applications. Additionally, built-in EMI protection reduces sensitivity to unwanted RF signals from sources such as mobile phones, WiFi, radio transmitters and tab readers.

The TLV854x op amps operates with a single supply voltage down to 1.7 V supply, providing continuous performance in low battery situations over the extended temperature range of –40°C to +125°C. All versions are specified for operation from –40°C to 125°C. The TLV8541 (single version) is available in the 5-pin SOT-23 while the TLV8542 (dual version) is available in the 8-pin SOIC package. The 4-channel TLV8544 (quad version) is available in the industry standard 14-pin TSSOP package.

The TLV854x ultra-low-power operational amplifiers (op amps) are intended for cost-optimized sensing applications in wireless and low-power wired equipment. The TLV854x family of op amps minimize power consumption in equipment such as motion detecting security systems (like microwave and PIR motion sensing) where operational battery life is critical. They also have a carefully designed CMOS input stage, enabling very low, femto-ampere bias currents, thereby reducing IBIAS and IOS errors that would otherwise impact sensitive applications. Examples of these include transimpedance amplifier (TIA) configurations with megaohm feedback resistors, and high source impedance sensing applications. Additionally, built-in EMI protection reduces sensitivity to unwanted RF signals from sources such as mobile phones, WiFi, radio transmitters and tab readers.

The TLV854x op amps operates with a single supply voltage down to 1.7 V supply, providing continuous performance in low battery situations over the extended temperature range of –40°C to +125°C. All versions are specified for operation from –40°C to 125°C. The TLV8541 (single version) is available in the 5-pin SOT-23 while the TLV8542 (dual version) is available in the 8-pin SOIC package. The 4-channel TLV8544 (quad version) is available in the industry standard 14-pin TSSOP package.

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技術文件

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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 TLV854x 500-nA, RRIO, Nanopower Operational Amplifiers for Cost-Optimized Systems datasheet (Rev. E) PDF | HTML 2018/4/24
Application brief GPIO Pins Power Signal Chain in Personal Electronics Running on Li-Ion Batteries 2018/2/12
應用說明 Nano-Power Battery Monitoring in Personal Electronics 2017/12/8
技術文章 How to bias PIR sensors to prolong battery life in wireless motion detectors PDF | HTML 2017/5/30
應用說明 Design of Ultra-Low Power Circuits for Battery-Powered Wireless PIR Motion Detec (Rev. A) 2017/5/12
使用指南 BOOSTXL-TLV8544PIR User's Guide (Rev. A) 2017/4/17
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 Cost-Optimized Opamp Window Comparator for Ultra-low Power PIR Motion Detectors 2017/3/6

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

BOOSTXL-TLV8544PIR — TLV8544 四通道奈米功率運算放大器 PIR 動作偵測器展示模組

BOOSTXL-TLV8544PIR 演示板是一款 BoosterPack，設計用於搭配 LAUNCHXL-CC2650 多頻段 2.4GHz 無線 LaunchPad 使用。BOOSTXL-TLV8544PIR 展示四通道微型奈米功耗運算放大器 (TLV8544) 在 PIR 動作偵測系統中作為類比前端 (AFE) 的運作方式。此演示方案可輕易作為超低功耗、電池供電的無線 PIR 或微波動作偵測系統的開發基礎。
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模擬型號

TLV8544 TINA-TI Reference Design (Rev. B)

SNOM613B.TSC (54 KB) - TINA-TI 參考設計
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模擬型號

TLV8544 TINA-TI Spice Model (Rev. A)

SNOM614A.ZIP (15 KB) - TINA-TI Spice 模型
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參考設計

TIDA-010997 — 邊緣 AI 感測器 BoosterPack™ 參考設計

此參考設計推出隨插即用時間序列感測器 BoosterPack™，其與多個 TI 評估模組 (EVM) 相容。此設計可直接存取不同感測器類型，以便您可透過簡易的資料收集功能使用 CCStudio™ Edge AI Studio 開發和評估邊緣 AI 應用。

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參考設計

TIDA-01398 — 適用於經濟型系統的超低功耗無線 PIR 動作偵測器參考設計

此參考設計使用四通道毫微功率運算放大器與 SimpleLink™ 超低功率 2.4GHz 無線微控制器 (MCU) 平台，展示低功率、成本最佳化的無線運動偵測器實作。  這些技術可實現超長電池壽命，使用標準 CR2032 鋰離子鈕釦電池可達 10 年之久，可用於運動偵測或透過占用偵測進行照明控制等應用。  PIR 感測器的靈敏度高達 30 英呎，關機電流為 2.16 µA。  該設計指南包含系統設計技巧、詳細測試結果和關於快速啟動和執行設計的資訊。
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOIC (D) 14 Ultra Librarian
TSSOP (PW) 14 Ultra Librarian
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