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運算放大器 (op amps)
精密運算放大器 (Vos < 1mV)

LPV811

現行

單通道 450nA 精密奈米功率運算放大器

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產品規格表

LPV811

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) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 1.6 Vos (offset voltage at 25°C) (max) (mV) 0.37 Offset drift (typ) (µV/°C) 1 GBW (typ) (MHz) 0.008 Features EMI Hardened Slew rate (typ) (V/µs) 0.002 Rail-to-rail In to V-, Out Iq per channel (typ) (mA) 0.00045 Vn at 1 kHz (typ) (nV√Hz) 420 CMRR (typ) (dB) 95 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.0047 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) 0 Input common mode headroom (to positive supply) (typ) (V) -0.9 Output swing headroom (to negative supply) (typ) (V) 0.0025 Output swing headroom (to positive supply) (typ) (V) -0.0035
Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 1.6 Vos (offset voltage at 25°C) (max) (mV) 0.37 Offset drift (typ) (µV/°C) 1 GBW (typ) (MHz) 0.008 Features EMI Hardened Slew rate (typ) (V/µs) 0.002 Rail-to-rail In to V-, Out Iq per channel (typ) (mA) 0.00045 Vn at 1 kHz (typ) (nV√Hz) 420 CMRR (typ) (dB) 95 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.0047 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) 0 Input common mode headroom (to positive supply) (typ) (V) -0.9 Output swing headroom (to negative supply) (typ) (V) 0.0025 Output swing headroom (to positive supply) (typ) (V) -0.0035
SOT-23 (DBV) 5 8.12 mm² (2.9 mm × 2.8 mm)
  • Nanopower Supply Current: 425 nA/channel
  • Offset Voltage: 300 µV (max)
  • TcVos: 1 µV/°C
  • Gain-Bandwidth: 8 kHz
  • Unity-Gain Stable
  • Low Input Bias Current : 100 fA
  • Wide Supply Range: 1.6 V to 5.5 V
  • Rail-to-Rail Output
  • No Output Reversals
  • EMI Protection
  • Temperature Range: –40°C to 125°C
  • Industry Standard Packages:
    • Single in 5-pin SOT-23
    • Dual in 8-pin VSSOP
  • Nanopower Supply Current: 425 nA/channel
  • Offset Voltage: 300 µV (max)
  • TcVos: 1 µV/°C
  • Gain-Bandwidth: 8 kHz
  • Unity-Gain Stable
  • Low Input Bias Current : 100 fA
  • Wide Supply Range: 1.6 V to 5.5 V
  • Rail-to-Rail Output
  • No Output Reversals
  • EMI Protection
  • Temperature Range: –40°C to 125°C
  • Industry Standard Packages:
    • Single in 5-pin SOT-23
    • Dual in 8-pin VSSOP

The LPV811 (single) and LPV812 (dual) are a ultra-low-power precision operational amplifier family for “Always ON” sensing applications in battery powered wireless and low power wired equipment. With 8 kHz of bandwidth from 425 nA of quiescent current and a trimmed offset voltage to under 300µV, the LPV81x amplifiers provide the required precision while minimizing power consumption in equipment such as gas detectors and portable electronic devices where operational battery-life is critical.

In addition to being ultra-low-power, the LPV81x amplifiers have CMOS input stages with fempto-amp bias currents for impedance source applications. The LPV81x amplifiers also feature a negative-rail sensing input stage and a rail-to-rail output stage that swings within millivolts of the rails, maintaining the widest dynamic range possible. EMI protection is designed into the LPV81x in order to reduce system sensitivity to unwanted RF signals from mobile phones, WiFi, radio transmitters, and tag readers.

The LPV811 (single) and LPV812 (dual) are a ultra-low-power precision operational amplifier family for “Always ON” sensing applications in battery powered wireless and low power wired equipment. With 8 kHz of bandwidth from 425 nA of quiescent current and a trimmed offset voltage to under 300µV, the LPV81x amplifiers provide the required precision while minimizing power consumption in equipment such as gas detectors and portable electronic devices where operational battery-life is critical.

In addition to being ultra-low-power, the LPV81x amplifiers have CMOS input stages with fempto-amp bias currents for impedance source applications. The LPV81x amplifiers also feature a negative-rail sensing input stage and a rail-to-rail output stage that swings within millivolts of the rails, maintaining the widest dynamic range possible. EMI protection is designed into the LPV81x in order to reduce system sensitivity to unwanted RF signals from mobile phones, WiFi, radio transmitters, and tag readers.
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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 LPV811/LPV812 Precision 425 nA Nanopower Operational Amplifiers datasheet (Rev. B) PDF | HTML 2016/11/1
Application brief Low-Power, Small-Size, High-Side Current Monitoring 2020/6/3
應用說明 Nano-Power Transimpedance Amplifier for Current Output Sensors 2018/3/7
Application brief Extend Battery Life and Simplify Calibration in Gas Sensing Applications (Rev. A) 2018/2/6
應用說明 Nano-Power Battery Monitoring in Personal Electronics 2017/12/8
技術文章 How to make precision measurements on a nanopower budget, part 1: DC gain in nanop PDF | HTML 2017/12/6
白皮書 Cities grow smarter through innovative semiconductor technologies 2017/7/7
電子書 The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML 2017/3/28
技術文章 How to improve IoT designs with a nanopower EMI-tolerant op amp PDF | HTML 2016/11/9
應用說明 Precision Voltage Offset: When Does it Matter? (Rev. A) 2016/11/2
應用說明 Comparing EMI Performance of LPV802 with Other Devices in a Gas Sensor App 2016/10/18

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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模擬型號

LPV81x PSpice Model

SNOM758.ZIP (27 KB) - PSpice 模型
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模擬型號

LPV81x TINA-TI Reference Design (Rev. A)

SNOM603A (39 KB) - TINA-TI 參考設計
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模擬型號

LPV81x TINA-TI Spice Model (Rev. A)

SNOM602A.ZIP (10 KB) - TINA-TI Spice 模型
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計算工具

OPAMP-NOISECALC — Noise Calculator

This folder contains three tools to help in understandning and managing noise in cicuits. The included tools are:

  • A noise generator tool - This is a Lab View 4-Run Time executable that generates Gaussian white noise, uniform white noise, 1/f noise, short noise, and 60Hz line noise. Temporal data, (...)
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參考設計

TIDA-00756 — 具有 10 年以上鈕釦電池壽命且永久開啟的低功耗氣體感測參考設計

此參考設計使用毫微功率運算放大器、比較器、系統定時器、溫度感測器與 SimpleLink™ 超低功率 2.4GHz 無線微控制器 (MCU) 平台，展示超低功耗一氧化碳偵測器實作。這些技術可實現超長電池壽命，使用標準 CR2032 鋰離子鈕釦電池的時間可超過 10 年，可用於氣體偵測或空氣品質監控等應用。一氧化碳偵測器的靈敏度高達 1000ppm，待機電流為 1.07µA。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
SOT-23 (DBV) 5 Ultra Librarian
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