LMV881

正在供貨

單路、5.5V、23MHz、高輸出電流 (110mA)、低噪聲 (9nV/√Hz) 運(yùn)算放大器

產(chǎn)品詳情

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) 23 Slew rate (typ) (V/μs) 12 Vos (offset voltage at 25°C) (max) (mV) 1 Iq per channel (typ) (mA) 1.65 Vn at 1 kHz (typ) (nV√Hz) 9 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (μV/°C) 0.7 Features EMI Hardened, Shutdown, Small Size Input bias current (max) (pA) 10 CMRR (typ) (dB) 94 Iout (typ) (A) 0.11 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) -1.1 Output swing headroom (to negative supply) (typ) (V) 0.003 Output swing headroom (to positive supply) (typ) (V) -0.003
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) 23 Slew rate (typ) (V/μs) 12 Vos (offset voltage at 25°C) (max) (mV) 1 Iq per channel (typ) (mA) 1.65 Vn at 1 kHz (typ) (nV√Hz) 9 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (μV/°C) 0.7 Features EMI Hardened, Shutdown, Small Size Input bias current (max) (pA) 10 CMRR (typ) (dB) 94 Iout (typ) (A) 0.11 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) -1.1 Output swing headroom (to negative supply) (typ) (V) 0.003 Output swing headroom (to positive supply) (typ) (V) -0.003
USON (NKK) 6 1.5 mm2 1.5 x 1
  • Unless Otherwise Noted, Typical Values at TA = 25°C, V+ = 3.3V
  • Supply Voltage 2.7V to 5.5V
  • Supply Current 1.65 mA
  • Shutdown Current 200 pA
  • Input Offset Voltage 1 mV Max
  • Input Bias Current 0.1 pA
  • GBW 23 MHz
  • EMIRR at 1.8 GHz 105 dB
  • Input Noise Voltage at 1 kHz 9 nV/√Hz
  • Slew Rate 12 V/μs
  • Output Voltage Swing Rail-to-Rail
  • Output Current Drive 70 mA
  • Operating Ambient Temperature Range ?40°C to 125°C
  • Space Saving Micro-UQFN Package 1.5 x 1.0 x 0.5 mm

All trademarks are the property of their respective owners.

  • Unless Otherwise Noted, Typical Values at TA = 25°C, V+ = 3.3V
  • Supply Voltage 2.7V to 5.5V
  • Supply Current 1.65 mA
  • Shutdown Current 200 pA
  • Input Offset Voltage 1 mV Max
  • Input Bias Current 0.1 pA
  • GBW 23 MHz
  • EMIRR at 1.8 GHz 105 dB
  • Input Noise Voltage at 1 kHz 9 nV/√Hz
  • Slew Rate 12 V/μs
  • Output Voltage Swing Rail-to-Rail
  • Output Current Drive 70 mA
  • Operating Ambient Temperature Range ?40°C to 125°C
  • Space Saving Micro-UQFN Package 1.5 x 1.0 x 0.5 mm

All trademarks are the property of their respective owners.

The LMV881 is a low power CMOS input operational amplifier that provides low input bias currents, a rail to rail output with high output drive capability and a wide temperature range of −40°C to +125°C. Additionally, the LMV881 is EMI hardened to minimize sensitivity to external interference.

The LMV881 has a maximum input offset voltage of 1 mV with an input common-mode voltage range that includes ground. Over an operating supply range from 2.7V to 5.5V, the LMV881 provides a typical PSRR of 110dB and a CMRR of 110dB. This makes the LMV881 ideal for EMI sensitive applications as well as exceptional performance as a robust general purpose part.

The unity gain stable LMV881 features 23 MHz of bandwidth while consuming only 1.65 mA of current. This device also maintains stability for capacitive loads as large as 200 pF.

LMV881 offers a shutdown pin that can be used to disable the device and reduce the supply current to sub-nanoamp levels. During shutdown, the output is hard-clamped to V- to provide a known output state. The shutdown input thresholds are set for 1.8V logic, regardless of the amplifiers supply voltage. This eliminates the need for additional logic level shifting circuitry or translators.

The LMV881 is offered in the space saving 6-Pin µUQFN package and provides excellent performance and economy in terms of power and space usage.

The LMV881 is a low power CMOS input operational amplifier that provides low input bias currents, a rail to rail output with high output drive capability and a wide temperature range of −40°C to +125°C. Additionally, the LMV881 is EMI hardened to minimize sensitivity to external interference.

The LMV881 has a maximum input offset voltage of 1 mV with an input common-mode voltage range that includes ground. Over an operating supply range from 2.7V to 5.5V, the LMV881 provides a typical PSRR of 110dB and a CMRR of 110dB. This makes the LMV881 ideal for EMI sensitive applications as well as exceptional performance as a robust general purpose part.

The unity gain stable LMV881 features 23 MHz of bandwidth while consuming only 1.65 mA of current. This device also maintains stability for capacitive loads as large as 200 pF.

LMV881 offers a shutdown pin that can be used to disable the device and reduce the supply current to sub-nanoamp levels. During shutdown, the output is hard-clamped to V- to provide a known output state. The shutdown input thresholds are set for 1.8V logic, regardless of the amplifiers supply voltage. This eliminates the need for additional logic level shifting circuitry or translators.

The LMV881 is offered in the space saving 6-Pin µUQFN package and provides excellent performance and economy in terms of power and space usage.
下載 觀看帶字幕的視頻 視頻

技術(shù)文檔

star =有關(guān)此產(chǎn)品的 TI 精選熱門文檔
未找到結(jié)果。請(qǐng)清除搜索并重試。
查看全部 4
頂層文檔 類型 標(biāo)題 格式選項(xiàng) 下載最新的英語版本 日期
* 數(shù)據(jù)表 LMV881 23 MHz Low Power CMOS EMI Hard Op Amp with 1.8V Logic 數(shù)據(jù)表 (Rev. B) 2013年 5月 3日
電子書 The Signal e-book: 有關(guān)運(yùn)算放大器設(shè)計(jì)主題的博客文章匯編 英語版 2018年 1月 31日
應(yīng)用手冊(cè) An Adaptable, Low Loss, Selective Filter and Gain Topology with Low Sensitivity (Rev. A) 2016年 3月 22日
電子書 Analog Engineer’s Pocket Reference Guide Fifth Edition (Rev. D) PDF | HTML 2014年 9月 30日

設(shè)計(jì)與開發(fā)

如需其他信息或資源，請(qǐng)點(diǎn)擊以下任一標(biāo)題進(jìn)入詳情頁面查看（如有）。

仿真模型

LMV881 Macromodels

SNOM306.ZIP (2 KB) - Spice Model
下載
計(jì)算工具

ANALOG-ENGINEER-CALC — 模擬工程師計(jì)算器

模擬工程師計(jì)算器旨在加快模擬電路設(shè)計(jì)工程師經(jīng)常運(yùn)用的許多重復(fù)性計(jì)算。該基于 PC 的工具提供圖形界面，其中顯示各種常見計(jì)算列表，從使用反饋電阻器設(shè)置運(yùn)算放大器增益到選擇合適的電路設(shè)計(jì)元件，以穩(wěn)定模數(shù)轉(zhuǎn)換器 (ADC) 驅(qū)動(dòng)器緩沖器電路。

除了可用作獨(dú)立工具之外，該計(jì)算器還能很好地與模擬工程師口袋參考中所述的概念配合使用。

View Options
設(shè)計(jì)工具

CIRCUIT060013 — 采用 T 網(wǎng)絡(luò)反饋電路的反相放大器

該設(shè)計(jì)將輸入信號(hào) VIN 反相并應(yīng)用 1000V/V 或 60dB 的信號(hào)增益。具有 T 反饋網(wǎng)絡(luò)的反相放大器可用于獲得高增益，而無需 R4 具有很小的值或反饋電阻器具有很大的值。
View Options
設(shè)計(jì)工具

CIRCUIT060015 — 可調(diào)節(jié)基準(zhǔn)電壓電路

該電路結(jié)合了一個(gè)反相和同相放大器，可使基準(zhǔn)電壓在正負(fù)輸入電壓范圍內(nèi)進(jìn)行調(diào)節(jié)?？赏ㄟ^增加增益來提高最大負(fù)基準(zhǔn)電壓電平。
View Options
設(shè)計(jì)工具

CIRCUIT060074 — 采用比較器的高側(cè)電流檢測電路

該高側(cè)電流檢測解決方案使用一個(gè)具有軌到軌輸入共模范圍的比較器，如果負(fù)載電流上升至超過 1A，則在比較器輸出端 (COMP OUT) 產(chǎn)生過流警報(bào) (OC-Alert) 信號(hào)。該實(shí)現(xiàn)中的 OC-Alert 信號(hào)低電平有效。因此，當(dāng)超過 1A 閾值后，比較器輸出變?yōu)榈碗娖?。?shí)施磁滯以確保在負(fù)載電流減小至 0.5A（減少 50%）時(shí)，OC-Alert 返回到邏輯高電平狀態(tài)。該電路使用漏極開路輸出比較器，從而對(duì)輸出高邏輯電平進(jìn)行電平轉(zhuǎn)換，以控制數(shù)字邏輯輸入引腳。對(duì)于需要驅(qū)動(dòng) MOSFET 開關(guān)柵極的應(yīng)用，最好使用具有推挽輸出的比較器。
View Options
模擬工具

PSPICE-FOR-TI — PSpice? for TI 設(shè)計(jì)和仿真工具

PSpice? for TI 可提供幫助評(píng)估模擬電路功能的設(shè)計(jì)和仿真環(huán)境。此功能齊全的設(shè)計(jì)和仿真套件使用 Cadence? 的模擬分析引擎。PSpice for TI 可免費(fèi)使用，包括業(yè)內(nèi)超大的模型庫之一，涵蓋我們的模擬和電源產(chǎn)品系列以及精選的模擬行為模型。

借助?PSpice for TI 的設(shè)計(jì)和仿真環(huán)境及其內(nèi)置的模型庫，您可對(duì)復(fù)雜的混合信號(hào)設(shè)計(jì)進(jìn)行仿真。創(chuàng)建完整的終端設(shè)備設(shè)計(jì)和原型解決方案，然后再進(jìn)行布局和制造，可縮短產(chǎn)品上市時(shí)間并降低開發(fā)成本。?

在?PSpice for TI 設(shè)計(jì)和仿真工具中，您可以搜索 TI (...)
發(fā)送申請(qǐng)
模擬工具

TINA-TI — 基于 SPICE 的模擬仿真程序

TINA-TI 提供了 SPICE 所有的傳統(tǒng)直流、瞬態(tài)和頻域分析以及更多。TINA 具有廣泛的后處理功能，允許您按照希望的方式設(shè)置結(jié)果的格式。虛擬儀器允許您選擇輸入波形、探針電路節(jié)點(diǎn)電壓和波形。TINA 的原理圖捕獲非常直觀 - 真正的“快速入門”。

TINA-TI 安裝需要大約 500MB。直接安裝，如果想卸載也很容易。我們相信您肯定會(huì)愛不釋手。

TINA 是德州儀器 (TI) 專有的 DesignSoft 產(chǎn)品。該免費(fèi)版本具有完整的功能，但不支持完整版 TINA 所提供的某些其他功能。

如需獲取可用 TINA-TI 模型的完整列表，請(qǐng)參閱：SpiceRack - 完整列表 

需要 HSpice (...)

用戶指南: PDF
英語版 (Rev.A): PDF
View Options
封裝 引腳 CAD 符號(hào)、封裝和 3D 模型
USON (NKK) 6 Ultra Librarian

訂購和質(zhì)量

包含信息：
  • RoHS
  • REACH
  • 器件標(biāo)識(shí)
  • 引腳鍍層/焊球材料
  • MSL 等級(jí)/回流焊峰值溫度
  • MTBF/時(shí)基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續(xù)可靠性監(jiān)測
包含信息：
  • 制造廠地點(diǎn)
  • 封裝廠地點(diǎn)

支持和培訓(xùn)

可獲得 TI 工程師技術(shù)支持的 TI E2E? 論壇

所有內(nèi)容均由 TI 和社區(qū)貢獻(xiàn)者按“原樣”提供，并不構(gòu)成 TI 規(guī)范。請(qǐng)參閱使用條款。

如果您對(duì)質(zhì)量、包裝或訂購 TI 產(chǎn)品有疑問，請(qǐng)參閱 TI 支持。??????????????

視頻