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放大器
運算放大器 (op amps)
一般用途運算放大器

TLV8541

現行

單路、3.6-V、8-kHz、超低靜態電流 (550-nA)、RRIO 運算放大器

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產品規格表

TLV8541

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) 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) 0.00055 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) 80 Iout (typ) (A) 0.03 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) 0.00064 Input common mode headroom (to positive supply) (typ) (V) 0.00055 Output swing headroom (to negative supply) (typ) (V) 0.012 Output swing headroom (to positive supply) (typ) (V) -0.012
Number of channels 1 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) 0.00055 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) 80 Iout (typ) (A) 0.03 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) 0.00064 Input common mode headroom (to positive supply) (typ) (V) 0.00055 Output swing headroom (to negative supply) (typ) (V) 0.012 Output swing headroom (to positive supply) (typ) (V) -0.012
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • 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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類型 標題 日期
* Data sheet TLV854x 500-nA, RRIO, Nanopower Operational Amplifiers for Cost-Optimized Systems datasheet (Rev. E) PDF | HTML 2018年 4月 24日
Application brief GPIO Pins Power Signal Chain in Personal Electronics Running on Li-Ion Batteries 2018年 2月 12日
Application note Nano-Power Battery Monitoring in Personal Electronics 2017年 12月 8日
Technical article How to make precision measurements on a nanopower budget, part 1: DC gain in nanop PDF | HTML 2017年 12月 6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

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 (...)

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 (...)

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模擬型號

TLV8541 TINA-TI Reference Design

SNOM627.TSC (54 KB) - TINA-TI Reference Design
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模擬型號

TLV8541 TINA-TI Spice Model

SNOM628.ZIP (15 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 (...)
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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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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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