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運算放大器 (op amps)
一般用途運算放大器

TLV9042

現行

雙路、5.5-V、350-kHz、超低 1.2-V、低靜態電流 (10-μA) 運算放大器

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最新 TLV9042D 現行 雙路、5.5V、3.5MHz、超低 1.2V、低靜態電流 (10-μA) 去補償運算放大器 Higher GBW, better power efficiency, decompensated amplifier for high gain applications.

TLV9042

現行
立即訂購

產品詳細資料

Number of channels 2 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) 0.02 Output swing headroom (to positive supply) (typ) (V) 0.02
Number of channels 2 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) 0.02 Output swing headroom (to positive supply) (typ) (V) 0.02
X2QFN (RUG) 10 3 mm² (1.5 mm × 2 mm) TSSOP (PW) 8 19.2 mm² (3 mm × 6.4 mm) SOT-23-THN (DDF) 8 8.12 mm² (2.9 mm × 2.8 mm) WSON (DSG) 8 4 mm² (2 mm × 2 mm) SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm) VSSOP (DGK) 8 14.7 mm² (3 mm × 4.9 mm)
  • Low power CMOS amplifier for cost-optimized applications
  • Operational from supply voltage as low as 1.2V
  • Low input bias current: 1pA typical, 12pA maximum
  • Low quiescent current: 10µA/ch
  • Low integrated noise of 6.5 µVp-p in 0.1Hz – 10Hz
  • Rail-to-rail input and output
  • High gain bandwidth product: 350kHz
  • Thermal noise floor: 64nV/√Hz
  • Low input offset voltage: ±0.6mV
  • Unity-gain stable
  • Robustly drives 100pF of load capacitance
  • Internal RFI and EMI filtered input pins
  • Wide specified temperature range: –40°C to 125°C
  • For decompensated version (16µA/ch, 3.1MHz), see TLV9041D and TLV9042D
  • Low power CMOS amplifier for cost-optimized applications
  • Operational from supply voltage as low as 1.2V
  • Low input bias current: 1pA typical, 12pA maximum
  • Low quiescent current: 10µA/ch
  • Low integrated noise of 6.5 µVp-p in 0.1Hz – 10Hz
  • Rail-to-rail input and output
  • High gain bandwidth product: 350kHz
  • Thermal noise floor: 64nV/√Hz
  • Low input offset voltage: ±0.6mV
  • Unity-gain stable
  • Robustly drives 100pF of load capacitance
  • Internal RFI and EMI filtered input pins
  • Wide specified temperature range: –40°C to 125°C
  • For decompensated version (16µA/ch, 3.1MHz), see TLV9041D and TLV9042D

The low-power TLV904x family includes single (TLV9041), dual (TLV9042), and quad-channel (TLV9044) ultra-low-voltage (1.2V to 5.5V) operational amplifiers (op-amps) with rail-to-rail input and output swing capabilities. The TLV904x enables power savings both with the low quiescent current (10µA, typical) and the ability to operate at supply voltages as low as 1.2V, making the device one of the few amplifiers in the industry capable of 1.5V 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 150nA. These devices offer a cost-effective amplifier design 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 350kHz and a high cap load drive of 100pF, 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 (1.2V to 5.5V) operational amplifiers (op-amps) with rail-to-rail input and output swing capabilities. The TLV904x enables power savings both with the low quiescent current (10µA, typical) and the ability to operate at supply voltages as low as 1.2V, making the device one of the few amplifiers in the industry capable of 1.5V 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 150nA. These devices offer a cost-effective amplifier design 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 350kHz and a high cap load drive of 100pF, 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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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 TLV904x 1.2V Ultra Low Voltage, 10µA Micro-Power RRIO Amplifier for Power Conscious Applications datasheet (Rev. H) PDF | HTML 2026/2/18
Circuit design AC-Coupled Transimpedance Amplifier Circuit (Rev. A) PDF | HTML 2025/1/27
技術文章 Designing with low-power op amps, part 4: Stability concerns and solutions PDF | HTML 2022/3/8
應用說明 Voltage-to-current (V-I) converter circuit with MOSFET (Rev. A) PDF | HTML 2021/8/20
技術文章 Designing with low-power op amps, part 3: Saving power with the shutdown amplifier PDF | HTML 2021/7/27
技術文章 Designing with low-power op amps, part 2: Low-power op amps for low-supply-voltage PDF | HTML 2021/3/24
技術文章 Designing with low-power op amps, part 1: Power-saving techniques for op-amp circu PDF | HTML 2021/2/2
類比設計期刊 Second-sourcing options for small-package amplifiers 2018/3/26

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 (...)

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開發板

DUAL-DIYAMP-EVM — Dual-channel universal do-it-yourself (DIY) amplifier circuit evaluation module for SOIC package

DUAL-DIYAMP-EVM 是一系列評估模組 (EVM)，提供工程師與自組愛好者 (DIYer) 實作型放大器電路，協助快速評估設計概念並驗證模擬結果。其是專為採用業界標準 SOIC-8 封裝的雙封裝運算放大器而設計。其可實現反向及非反向放大器、Sallen key 濾波器、多回饋濾波器、含參考緩衝器的差動放大器、含雙回饋的 Riso、單端輸入至差動輸出、差動輸入至差動輸出、雙運算放大器儀器放大器和並聯運算放大器。

DUAL-DIYAMP-EVM 可快速製作電路原型，並採用常見的 0805 或 0603 表面裝載元件。透過多種組合方式，此 EVM (...)

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開發板

SMALL-AMP-DIP-EVM — 適用於採用小尺寸封裝之運算放大器的評估模組

SMALL-AMP-DIP-EVM 提供快速簡易方式，與許多業界標準小型封裝進行介接，因而加速小型封裝運算放大器原型設計。SMALL-AMP-DIP-EVM 支援八個小型封裝選項，包括 DPW-5 (X2SON)、DSG-8 (WSON)、DCN-8 (SOT)、DDF-8 (SOT)、RUG-10 (X2QFN)、RUC-14 (X2QFN)、RGY-14 (VQFN) 和 RTE-16 (WQFN)。

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模擬型號

TLV904x PSpice Model (Rev. B)

SBOMB62B.ZIP (31 KB) - PSpice 模型
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模擬型號

TLV904x TINA-TI Reference Design (Rev. B)

SBOMB60B.ZIP (6 KB) - TINA-TI 參考設計
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模擬型號

TLV904x TINA-TI Spice Model (Rev. B)

SBOMB61B.ZIP (4 KB) - TINA-TI Spice 模型
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設計工具

CIRCUIT060014 — 具有 MOSFET 的電壓至電流 (V-I) 轉換器電路

這款單電源低側 V-I 轉換器可為負載提供適當調節的電流，並可與高於運算放大器供應電壓的電壓連接。此電路接受 0 V 和 2 V 間的輸入電壓，並可將其轉爲 0 mA 和 100 mA 間的電流。透過將低側電流感測電阻器 R3 中的壓降回饋至運算放大器反向輸入，以精確調節電流。
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設計工具

CIRCUIT060041 — AC 耦合轉阻放大器電路

此電路使用配置為跨電阻放大器的運算放大器來放大光電二極體 (由 Ii 和 C3 建模) 的 AC 訊號。此電路透過使用伺服迴路中的積分器，使用電晶體將 DC 電流從光電二極體中吸收出來以抑制 DC 訊號。施加於非反相輸入的偏壓電壓，可在沒有輸入電流的情況下，防止輸出飽和至負極供應軌。
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
X2QFN (RUG) 10 Ultra Librarian
TSSOP (PW) 8 Ultra Librarian
SOT-23-THN (DDF) 8 Ultra Librarian
WSON (DSG) 8 Ultra Librarian
SOIC (D) 8 Ultra Librarian
VSSOP (DGK) 8 Ultra Librarian
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