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運算放大器 (op amps)
一般用途運算放大器

LMV831

現行

單路、5.5-V、3.3-MHz、64-mA 輸出電流、低雜訊 (12-nV/√Hz) 運算放大器

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OPA310 現行 單路、5.5-V、3-MHz、高輸出電流 (150 mA)、快速關機 (1 μs) 運算放大器 Rail-to-rail inputs & outputs, higher slew rate (3V/µs), smaller packages

LMV831

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) 2.7 Rail-to-rail In to V-, Out GBW (typ) (MHz) 3.3 Slew rate (typ) (V/µs) 2 Vos (offset voltage at 25°C) (max) (mV) 1 Iq per channel (typ) (mA) 0.25 Vn at 1 kHz (typ) (nV√Hz) 12 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 0.5 Features EMI Hardened Input bias current (max) (pA) 10 CMRR (typ) (dB) 93 Iout (typ) (A) 0.064 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) -1.2 Output swing headroom (to negative supply) (typ) (V) 0.006 Output swing headroom (to positive supply) (typ) (V) -0.006
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) 2.7 Rail-to-rail In to V-, Out GBW (typ) (MHz) 3.3 Slew rate (typ) (V/µs) 2 Vos (offset voltage at 25°C) (max) (mV) 1 Iq per channel (typ) (mA) 0.25 Vn at 1 kHz (typ) (nV√Hz) 12 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 0.5 Features EMI Hardened Input bias current (max) (pA) 10 CMRR (typ) (dB) 93 Iout (typ) (A) 0.064 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) -1.2 Output swing headroom (to negative supply) (typ) (V) 0.006 Output swing headroom (to positive supply) (typ) (V) -0.006
SOT-SC70 (DCK) 5 4.2 mm² 2 x 2.1
  • Unless Otherwise Noted, Typical Values at
    TA= 25°C, V+ = 3.3 V
  • Supply Voltage 2.7 V to 5.5 V
  • Supply Current (per Channel) 240 µA
  • Input Offset Voltage 1-mV Maximum
  • Input Bias Current 0.1 pA
  • GBW 3.3 MHz
  • EMIRR at 1.8 GHz 120 dB
  • Input Noise Voltage at 1 kHz 12 nV/√Hz
  • Slew Rate 2 V/µs
  • Output Voltage Swing Rail-to-Rail
  • Output Current Drive 30 mA
  • Operating Ambient Temperature Range −40°C to 125°C
  • Unless Otherwise Noted, Typical Values at
    TA= 25°C, V+ = 3.3 V
  • Supply Voltage 2.7 V to 5.5 V
  • Supply Current (per Channel) 240 µA
  • Input Offset Voltage 1-mV Maximum
  • Input Bias Current 0.1 pA
  • GBW 3.3 MHz
  • EMIRR at 1.8 GHz 120 dB
  • Input Noise Voltage at 1 kHz 12 nV/√Hz
  • Slew Rate 2 V/µs
  • Output Voltage Swing Rail-to-Rail
  • Output Current Drive 30 mA
  • Operating Ambient Temperature Range −40°C to 125°C

TI’s LMV83x devices are CMOS input, low-power operation amplifier ICs, providing a low input bias current, a wide temperature range of −40°C to 125°C, and exceptional performance, making them robust general-purpose parts. Additionally, the LMV83x are EMI-hardened to minimize any interference, making them ideal for EMI-sensitive applications.

The unity gain stable LMV83x feature 3.3-MHz of bandwidth while consuming only 0.24 mA of current per channel. These parts also maintain stability for capacitive loads as large as 200 pF. The LMV83x provide superior performance and economy in terms of power and space usage.

This family of parts has a maximum input offset voltage of 1 mV, a rail-to-rail output stage and an input common-mode voltage range that includes ground. Over an operating range from 2.7 V to 5.5 V, the LMV83x provide a PSRR of 93 dB, and a CMRR of 91 dB. The LMV831 is offered in the space-saving 5-pin SC70 package, the LMV832 in the 8-pin VSSOP and the LMV834 is offered in the 14--in TSSOP package.

TI’s LMV83x devices are CMOS input, low-power operation amplifier ICs, providing a low input bias current, a wide temperature range of −40°C to 125°C, and exceptional performance, making them robust general-purpose parts. Additionally, the LMV83x are EMI-hardened to minimize any interference, making them ideal for EMI-sensitive applications.

The unity gain stable LMV83x feature 3.3-MHz of bandwidth while consuming only 0.24 mA of current per channel. These parts also maintain stability for capacitive loads as large as 200 pF. The LMV83x provide superior performance and economy in terms of power and space usage.

This family of parts has a maximum input offset voltage of 1 mV, a rail-to-rail output stage and an input common-mode voltage range that includes ground. Over an operating range from 2.7 V to 5.5 V, the LMV83x provide a PSRR of 93 dB, and a CMRR of 91 dB. The LMV831 is offered in the space-saving 5-pin SC70 package, the LMV832 in the 8-pin VSSOP and the LMV834 is offered in the 14--in TSSOP package.
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類型 標題 日期
* Data sheet LMV831 Single / LMV832 Dual / LMV834 Quad 3.3-MHz Low-Power CMOS, EMI-Hardened Operational Amplifiers datasheet (Rev. C) PDF | HTML 2015年 11月 30日
Application note Ramping Up on Slew Rate PDF | HTML 2023年 7月 13日
E-book The Signal e-book: A compendium of blog posts on op amp design topics 2017年 3月 28日
EVM User's guide 551012875, 551012922 Universal Op Amp Evaluation Boards (SOT-23 and SC-70) (Rev. C) 2013年 5月 1日
EVM User's guide AN-1867 EMIRR Evaluation Boards for LMV831/LMV832/LMV834 (Rev. A) 2013年 4月 26日
White paper EMI-Hardened Operational Amplifiers for Robust Circuit Design 2008年 9月 22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

551012922-001 — SC-70 放大器通用評估板

Texas Instrument offers this blank universal Evaluation Board to help you evaluate the performance of any low voltage, low power operational amplifier that is offered in the SC-70 package. Resistors, capacitors, or any other components can be easily mounted on this board. These components can be (...)

使用指南: PDF
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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 (...)

使用指南: PDF | HTML
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模擬型號

LMV831 PSPICE Model

SNOM049.ZIP (3 KB) - PSpice 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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SOT-SC70 (DCK) 5 檢視選項
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