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運算放大器 (op amps)
一般用途運算放大器

LPV801

現行

單路、5.5-V、8-kHz、超低靜態電流 (450-nA)、1.6-V 最小供應電壓、RRO 運算放大器

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TLV8801 現行 單路、5.5-V、6-kHz、超低靜態電流 (450-nA)、RRIO 運算放大器 Similar performance for cost-optimized applications

LPV801

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 Rail-to-rail In to V-, Out GBW (typ) (MHz) 0.008 Slew rate (typ) (V/µs) 0.0018 Vos (offset voltage at 25°C) (max) (mV) 3.5 Iq per channel (typ) (mA) 0.00045 Vn at 1 kHz (typ) (nV√Hz) 420 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 1.5 Features EMI Hardened CMRR (typ) (dB) 98 Iout (typ) (A) 0.0047 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) 0.00054 Input common mode headroom (to positive supply) (typ) (V) 0.00045 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 Rail-to-rail In to V-, Out GBW (typ) (MHz) 0.008 Slew rate (typ) (V/µs) 0.0018 Vos (offset voltage at 25°C) (max) (mV) 3.5 Iq per channel (typ) (mA) 0.00045 Vn at 1 kHz (typ) (nV√Hz) 420 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 1.5 Features EMI Hardened CMRR (typ) (dB) 98 Iout (typ) (A) 0.0047 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) 0.00054 Input common mode headroom (to positive supply) (typ) (V) 0.00045 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 x 2.8
  • Nanopower Supply Current: 320 nA/channel
  • Offset Voltage: 3.5 mV (max)
  • TcVos: 1 µV/°C
  • Unity Gain-Bandwidth: 8 kHz
  • Wide Supply Range: 1.6 V to 5.5 V
  • Low Input Bias Current : 0.1 pA
  • Unity-Gain Stable
  • 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: 320 nA/channel
  • Offset Voltage: 3.5 mV (max)
  • TcVos: 1 µV/°C
  • Unity Gain-Bandwidth: 8 kHz
  • Wide Supply Range: 1.6 V to 5.5 V
  • Low Input Bias Current : 0.1 pA
  • Unity-Gain Stable
  • 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 LPV801 (single) and LPV802 (dual) comprise a family of ultra-low-power operational amplifiers for sensing applications in battery powered wireless and low power wired equipment. With 8kHz of bandwidth from 320nA of quiescent current, the LPV80x amplifiers minimize power consumption in equipment such as CO detectors, smoke detectors and PIR motion detectors where operational battery-life is critical.

In addition to being ultra-low-power, the LPV80x amplifiers have CMOS input stages with typically femto-amp bias currents. The LPV80x amplifiers also feature a negative-rail sensing input stage and a rail-to-rail output stage that is capable of swinging within millivolts of the rails, maintaining the widest dynamic range possible. EMI protection is designed into the LPV80x in order to reduce system sensitivity to unwanted RF signals from mobile phones, WiFi, radio transmitters and tag readers.

The LPV801 (single) and LPV802 (dual) comprise a family of ultra-low-power operational amplifiers for sensing applications in battery powered wireless and low power wired equipment. With 8kHz of bandwidth from 320nA of quiescent current, the LPV80x amplifiers minimize power consumption in equipment such as CO detectors, smoke detectors and PIR motion detectors where operational battery-life is critical.

In addition to being ultra-low-power, the LPV80x amplifiers have CMOS input stages with typically femto-amp bias currents. The LPV80x amplifiers also feature a negative-rail sensing input stage and a rail-to-rail output stage that is capable of swinging within millivolts of the rails, maintaining the widest dynamic range possible. EMI protection is designed into the LPV80x in order to reduce system sensitivity to unwanted RF signals from mobile phones, WiFi, radio transmitters and tag readers.
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類型 標題 日期
* Data sheet LPV801/LPV802 320 nA Nanopower Operational Amplifiers datasheet (Rev. B) PDF | HTML 2016年 11月 16日
Application brief Extend Battery Life and Simplify Calibration in Gas Sensing Applications (Rev. A) 2018年 2月 6日
Application note Nano-Power Battery Monitoring in Personal Electronics 2017年 12月 8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 LPV801 Micropower Ionization Smoke Detector 2016年 11月 29日
Technical article How to improve IoT designs with a nanopower EMI-tolerant op amp PDF | HTML 2016年 11月 9日
Application note Precision Voltage Offset: When Does it Matter? (Rev. A) 2016年 11月 2日
Application note Comparing EMI Performance of LPV802 with Other Devices in a Gas Sensor App 2016年 10月 18日

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

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 (...)

使用指南: PDF
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開發板

DIYAMP-EVM — 通用自製 (DIY) 放大器電路評估模組

The DIYAMP-EVM is a unique evaluation module (EVM) family that provides engineers and do it yourselfers (DIYers) with real-world amplifier circuits, enabling you to quickly evaluate design concepts and verify simulations. It is available in three industry-standard packages (SC70, SOT23, SOIC) and (...)

使用指南: PDF | HTML
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模擬型號

LPV801 TINA-TI Reference Design

SNOM599.TSC (40 KB) - TINA-TI Reference Design
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模擬型號

LPV801 TINA-TI Spice Model

SNOM594.ZIP (10 KB) - TINA-TI Spice Model
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計算工具

ANALOG-ENGINEER-CALC — 類比工程師計算機

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 op-amp gain with feedback (...)
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設計工具

CIRCUIT060013 — 具有 T 網路回饋電路的反相放大器

此設計可反轉輸入訊號 VIN，並使用 1000 V/V 或 60 dB 訊號增益。具有 T 回饋網路的反相放大器可在沒有較小 R4 值或超大回饋電阻器值的情況下獲得高增益。
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設計工具

CIRCUIT060015 — 可調式參考電壓電路

此電路結合反相及非反相放大器，讓參考電壓可從負輸入電壓向上調整至輸入電壓。可加入增益以提高最大負參考位準。
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設計工具

CIRCUIT060074 — 具有比較器電路的高壓側電流感測

此高壓側電流感測解決方案使用一個具有軌對軌輸入共模範圍的比較器，若負載電流上升到 1 A 以上，便在比較器輸出 (COMP OUT) 建立過電流警示 (OC 警示) 訊號。此實作中的 OC 訊號為低電位作動。因此當超過 1-A 閾值時，比較器輸出會變低。實作磁滯後會在負載電流降低至 0.5 A (減少 50%) 時，讓 OC-Alert 返回邏輯高狀態。此電路利用開漏輸出比較器，為控制數位邏輯輸入針腳而進行電平轉換輸出高邏輯電平。對於需要驅動 MOSFET 開關閘極的應用，建議使用具推挽輸出的比較器。
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模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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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