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運算放大器 (op amps)
一般用途運算放大器

LMV344

現行

四路、5.5-V、1-MHz、高輸出電流 (75-mA) 運算放大器

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TLV9004 現行 適合成本最佳化應用的四路、5.5-V、1-MHz、RRIO 運算放大器 Better accuracy (1.6mV Vos max), lower power (0.06mA Iq), rail-to-rail inputs and outputs, smaller packages

LMV344

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) 2.5 Rail-to-rail In to V-, Out GBW (typ) (MHz) 1 Slew rate (typ) (V/µs) 1 Vos (offset voltage at 25°C) (max) (mV) 5 Iq per channel (typ) (mA) 0.107 Vn at 1 kHz (typ) (nV√Hz) 39 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 1.9 Input bias current (max) (pA) 200 CMRR (typ) (dB) 86 Iout (typ) (A) 0.075 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) 0 Input common mode headroom (to positive supply) (typ) (V) -0.8 Output swing headroom (to negative supply) (typ) (V) 0.007 Output swing headroom (to positive supply) (typ) (V) -0.007
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) 2.5 Rail-to-rail In to V-, Out GBW (typ) (MHz) 1 Slew rate (typ) (V/µs) 1 Vos (offset voltage at 25°C) (max) (mV) 5 Iq per channel (typ) (mA) 0.107 Vn at 1 kHz (typ) (nV√Hz) 39 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 1.9 Input bias current (max) (pA) 200 CMRR (typ) (dB) 86 Iout (typ) (A) 0.075 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) 0 Input common mode headroom (to positive supply) (typ) (V) -0.8 Output swing headroom (to negative supply) (typ) (V) 0.007 Output swing headroom (to positive supply) (typ) (V) -0.007
SOIC (D) 14 51.9 mm² 8.65 x 6 TSSOP (PW) 14 32 mm² 5 x 6.4
  • 2.7-V and 5-V Performance
  • Rail-to-Rail Output Swing
  • Input Bias Current:1 pA (Typical)
  • Input Offset Voltage: 0.25 mV (Typical)
  • Low Supply Current: 100 µA (Typical)
  • Low Shutdown Current: 45 pA (Typical)
  • Gain Bandwidth of 1 MHz (Typical)
  • Slew Rate: 1 V/µs (Typical)
  • Turnon Time From Shutdown: 5 µs (Typical)
  • Input Referred Voltage Noise (at 10 kHz):
    20 nV/√Hz
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (HBM)
    • 750-V Charged-device model (CDM)
  • 2.7-V and 5-V Performance
  • Rail-to-Rail Output Swing
  • Input Bias Current:1 pA (Typical)
  • Input Offset Voltage: 0.25 mV (Typical)
  • Low Supply Current: 100 µA (Typical)
  • Low Shutdown Current: 45 pA (Typical)
  • Gain Bandwidth of 1 MHz (Typical)
  • Slew Rate: 1 V/µs (Typical)
  • Turnon Time From Shutdown: 5 µs (Typical)
  • Input Referred Voltage Noise (at 10 kHz):
    20 nV/√Hz
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (HBM)
    • 750-V Charged-device model (CDM)

The LMV34x devices are single, dual, and quad CMOS operational amplifiers, respectively, with low voltage, low power, and rail-to-rail output swing capabilities. The PMOS input stage offers an ultra-low input bias current of 1 pA (typical) and an offset voltage of 0.25 mV (typical). The single-supply amplifier is designed specifically for low-voltage (2.7 V to 5 V) operation, with a wide common-mode input voltage range that typically extends from –0.2 V to 0.8 V from the positive supply rail. The LMV341 (single) also offers a shutdown (SHDN) pin that can be used to disable the device. In shutdown mode, the supply current is reduced to 33 nA (typical). Additional features of the family are a 20-nV/√Hz voltage noise at 10 kHz, 1-MHz unity-gain bandwidth, 1-V/µs slew rate, and 100-µA current consumption per channel.

Offered in both the SOT-23 and smaller SC70 packages, the LMV341 is suitable for the most space-constraint applications. The LMV342 dual device is offered in the standard SOIC and VSSOP packages. An extended industrial temperature range from –40°C to 125°C makes these devices suitable in a wide variety of commercial and industrial environments.

The LMV34x devices are single, dual, and quad CMOS operational amplifiers, respectively, with low voltage, low power, and rail-to-rail output swing capabilities. The PMOS input stage offers an ultra-low input bias current of 1 pA (typical) and an offset voltage of 0.25 mV (typical). The single-supply amplifier is designed specifically for low-voltage (2.7 V to 5 V) operation, with a wide common-mode input voltage range that typically extends from –0.2 V to 0.8 V from the positive supply rail. The LMV341 (single) also offers a shutdown (SHDN) pin that can be used to disable the device. In shutdown mode, the supply current is reduced to 33 nA (typical). Additional features of the family are a 20-nV/√Hz voltage noise at 10 kHz, 1-MHz unity-gain bandwidth, 1-V/µs slew rate, and 100-µA current consumption per channel.

Offered in both the SOT-23 and smaller SC70 packages, the LMV341 is suitable for the most space-constraint applications. The LMV342 dual device is offered in the standard SOIC and VSSOP packages. An extended industrial temperature range from –40°C to 125°C makes these devices suitable in a wide variety of commercial and industrial environments.
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類型 標題 日期
* Data sheet LMV34x Rail-to-Rail Output CMOS Operational Amplifiers With Shutdown datasheet (Rev. I) PDF | HTML 2016年 5月 27日
E-book The Signal e-book: A compendium of blog posts on op amp design topics 2017年 3月 28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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模擬型號

LMV342 PSpice Model (Rev. C)

SLOM481C.ZIP (22 KB) - PSpice Model
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模擬型號

LMV342 TINA-TI Reference Design (Rev. A)

SLOM482A.ZIP (17 KB) - TINA-TI Reference Design
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模擬型號

LMV342 TINA-TI Spice Model (Rev. A)

SLOM483A.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 (...)
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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參考設計

TIDA-00376 — 壓電式喇叭頻閃通知參考設計

TIDA-00376 uses our industrial piezo driver, flash LED driver and the ultra-low-power FRAM microcontroller (MCU) to demonstrate the implementation of both audible and visual notification subsystems primarily intended for fire alert end-equipment systems. This reference design demonstrates (...)
使用指南: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOIC (D) 14 Ultra Librarian
TSSOP (PW) 14 Ultra Librarian
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