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放大器
運算放大器 (op amps)
一般用途運算放大器

TLV9044

現行

具低靜態電流 (10μA) 的四路、5.5V、350kHz 超低 1.2V 運算放大器

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產品規格表

TLV9044

現行
產品規格表 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) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 1.2 Rail-to-rail In, Out GBW (typ) (MHz) 0.35 Slew rate (typ) (V/µs) 0.2 Vos (offset voltage at 25°C) (max) (mV) 2.25 Iq per channel (typ) (mA) 0.01 Vn at 1 kHz (typ) (nV√Hz) 66 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 0.8 Features Cost Optimized, EMI Hardened, Low Power, Shutdown, Small Size Input bias current (max) (pA) 12 CMRR (typ) (dB) 89 Iout (typ) (A) 0.04 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) 0 Input common mode headroom (to positive supply) (typ) (V) 0 Output swing headroom (to negative supply) (typ) (V) 0.2 Output swing headroom (to positive supply) (typ) (V) 0.2
Number of channels 4 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 1.2 Rail-to-rail In, Out GBW (typ) (MHz) 0.35 Slew rate (typ) (V/µs) 0.2 Vos (offset voltage at 25°C) (max) (mV) 2.25 Iq per channel (typ) (mA) 0.01 Vn at 1 kHz (typ) (nV√Hz) 66 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 0.8 Features Cost Optimized, EMI Hardened, Low Power, Shutdown, Small Size Input bias current (max) (pA) 12 CMRR (typ) (dB) 89 Iout (typ) (A) 0.04 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) 0 Input common mode headroom (to positive supply) (typ) (V) 0 Output swing headroom (to negative supply) (typ) (V) 0.2 Output swing headroom (to positive supply) (typ) (V) 0.2
SOIC (D) 14 51.9 mm² 8.65 x 6 SOT-23-THN (DYY) 14 13.692 mm² 4.2 x 3.26 TSSOP (PW) 14 32 mm² 5 x 6.4
  • Low power CMOS amplifier for cost-optimized applications
  • Operational from supply voltage as low as 1.2 V
  • Low input bias current: 1-pA typical, 12-pA maximum
  • Low quiescent current: 10 µA/ch
  • Low integrated noise of 6.5 µVp-p in 0.1 Hz – 10 Hz
  • Rail-to-rail input and output
  • High gain bandwidth product: 350 kHz
  • Thermal noise floor: 64 nV/√Hz
  • Low input offset voltage: ±0.6 mV
  • Unity-gain stable
  • Robustly drives 100 pF of load capacitance
  • Internal RFI and EMI filtered input pins
  • Wide specified temperature range: –40°C to 125°C
  • Low power CMOS amplifier for cost-optimized applications
  • Operational from supply voltage as low as 1.2 V
  • Low input bias current: 1-pA typical, 12-pA maximum
  • Low quiescent current: 10 µA/ch
  • Low integrated noise of 6.5 µVp-p in 0.1 Hz – 10 Hz
  • Rail-to-rail input and output
  • High gain bandwidth product: 350 kHz
  • Thermal noise floor: 64 nV/√Hz
  • Low input offset voltage: ±0.6 mV
  • Unity-gain stable
  • Robustly drives 100 pF of load capacitance
  • Internal RFI and EMI filtered input pins
  • Wide specified temperature range: –40°C to 125°C

The low-power TLV904x family includes single (TLV9041), dual (TLV9042), and quad-channel (TLV9044) ultra-low-voltage (1.2 V to 5.5 V) operational amplifiers (op-amps) with rail-to-rail input and output swing capabilities. The TLV904x enables power savings both with its low quiescent current (10 µA, typ.) and the ability to operate at supply voltages as low as 1.2 V, making it one of the few amplifiers in the industry capable of 1.5-V coin cell applications. Further power savings can be achieved using the shutdown mode (TLV9041S, TLV9042S, and TLV9044S) that allows the amplifiers to be switched off and enter into a standby mode with typical current consumption of less than 150 nA. These devices offer a cost-effective amplifier solution for power and space-constrained applications such as battery-powered IoT devices, wearable electronics, and personal electronics where low-voltage operation is crucial.

The robust design of the TLV904x family simplifies circuit design. These op-amps feature an integrated RFI and EMI rejection filter, unity-gain stability, and no-phase reversal in input overdrive conditions. The device also delivers excellent AC performance with a gain bandwidth of 350 kHz and a high cap load drive of 100 pF, enabling designers to achieve both improved performance and lower power consumption.

Space-saving micro-size packages, such as X2QFN and WSON, are offered for all channel variants (single, dual, and quad), along with industry-standard packages such as SOIC, VSSOP, TSSOP, and SOT-23 packages.

The low-power TLV904x family includes single (TLV9041), dual (TLV9042), and quad-channel (TLV9044) ultra-low-voltage (1.2 V to 5.5 V) operational amplifiers (op-amps) with rail-to-rail input and output swing capabilities. The TLV904x enables power savings both with its low quiescent current (10 µA, typ.) and the ability to operate at supply voltages as low as 1.2 V, making it one of the few amplifiers in the industry capable of 1.5-V coin cell applications. Further power savings can be achieved using the shutdown mode (TLV9041S, TLV9042S, and TLV9044S) that allows the amplifiers to be switched off and enter into a standby mode with typical current consumption of less than 150 nA. These devices offer a cost-effective amplifier solution for power and space-constrained applications such as battery-powered IoT devices, wearable electronics, and personal electronics where low-voltage operation is crucial.

The robust design of the TLV904x family simplifies circuit design. These op-amps feature an integrated RFI and EMI rejection filter, unity-gain stability, and no-phase reversal in input overdrive conditions. The device also delivers excellent AC performance with a gain bandwidth of 350 kHz and a high cap load drive of 100 pF, enabling designers to achieve both improved performance and lower power consumption.

Space-saving micro-size packages, such as X2QFN and WSON, are offered for all channel variants (single, dual, and quad), along with industry-standard packages such as SOIC, VSSOP, TSSOP, and SOT-23 packages.
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* Data sheet TLV904x 1.2-V Ultra Low Voltage, 10µA Micro-Power RRIO Amplifier for Power Conscious Applications datasheet (Rev. G) PDF | HTML 2022年 3月 8日

設計與開發

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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

DUAL-DIYAMP-EVM — 雙通道通用自製 (DIY) 放大器電路評估模組

The DUAL-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 designed specifically for dual package op amps in the (...)
使用指南: PDF
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開發板

DYY-AMP-EVM — 適用於採用 DYY 封裝之運算放大器的評估模組

DYY-AMP-EVM 是一款評估模組 (EVM)，可測試採用 DYY-14 (SOT-23 THN) 封裝的運算放大器性能。此 EVM 可輕鬆配置為反相放大器、非反相放大器及差動放大器，讓工程師能快速評估並驗證設計概念。

使用指南: PDF | HTML
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模擬型號

TLV904x PSpice Model (Rev. A)

SBOMB62A.ZIP (27 KB) - PSpice Model
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模擬型號

TLV904x TINA-TI Reference Design (Rev. A)

SBOMB60A.ZIP (6 KB) - TINA-TI Reference Design
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模擬型號

TLV904x TINA-TI Spice Model (Rev. A)

SBOMB61A.ZIP (4 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
SOIC (D) 14 Ultra Librarian
SOT-23-THN (DYY) 14 Ultra Librarian
TSSOP (PW) 14 Ultra Librarian
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