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運算放大器 (op amps)
精密運算放大器 (Vos < 1mV)

LMV844

現行

四 CMOS 輸入、RRIO、寬電源範圍運算放大器

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產品規格表

LMV844

現行
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) 12 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Vos (offset voltage at 25°C) (max) (mV) 0.5 Offset drift (typ) (µV/°C) 0.35 Input bias current (max) (pA) 10 GBW (typ) (MHz) 4.5 Slew rate (typ) (V/µs) 2.5 Rail-to-rail In, Out Iq per channel (typ) (mA) 0.96 Vn at 1 kHz (typ) (nV√Hz) 20 CMRR (typ) (dB) 106 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.033 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.2 Input common mode headroom (to positive supply) (typ) (V) 0.2 Output swing headroom (to negative supply) (typ) (V) 0.038 Output swing headroom (to positive supply) (typ) (V) -0.032 THD + N at 1 kHz (typ) (%) 0.003
Number of channels 4 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Vos (offset voltage at 25°C) (max) (mV) 0.5 Offset drift (typ) (µV/°C) 0.35 Input bias current (max) (pA) 10 GBW (typ) (MHz) 4.5 Slew rate (typ) (V/µs) 2.5 Rail-to-rail In, Out Iq per channel (typ) (mA) 0.96 Vn at 1 kHz (typ) (nV√Hz) 20 CMRR (typ) (dB) 106 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.033 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.2 Input common mode headroom (to positive supply) (typ) (V) 0.2 Output swing headroom (to negative supply) (typ) (V) 0.038 Output swing headroom (to positive supply) (typ) (V) -0.032 THD + N at 1 kHz (typ) (%) 0.003
TSSOP (PW) 14 32 mm² (5 mm × 6.4 mm) SOIC (D) 14 51.9 mm² (8.65 mm × 6 mm)
  • Unless Otherwise Noted, Typical Values at
    TA = 25 °C, V+ = 5 V.
  • Small 5-Pin SC70 Package (2.00 mm × 1.25 mm × 0.95 mm)
  • Wide Supply Voltage Range: 2.7 V to 12 V
  • Specified Performance at 3.3 V, 5 V and ±5 V
  • Low Supply Current: 1 mA Per Channel
  • Unity Gain Bandwidth: 4.5 MHz
  • Open-Loop Gain: 133 dB
  • Input Offset Voltage: 500 µV Maximum
  • Input Bias Current: 0.3 pA
  • CMRR at 112 dB and PSSR at 108 dB
  • Input Voltage Noise: 20 nV/√Hz
  • Temperature Range: −40°C to 125°C
  • Rail-to-Rail Input and Output (RRIO)
  • Unless Otherwise Noted, Typical Values at
    TA = 25 °C, V+ = 5 V.
  • Small 5-Pin SC70 Package (2.00 mm × 1.25 mm × 0.95 mm)
  • Wide Supply Voltage Range: 2.7 V to 12 V
  • Specified Performance at 3.3 V, 5 V and ±5 V
  • Low Supply Current: 1 mA Per Channel
  • Unity Gain Bandwidth: 4.5 MHz
  • Open-Loop Gain: 133 dB
  • Input Offset Voltage: 500 µV Maximum
  • Input Bias Current: 0.3 pA
  • CMRR at 112 dB and PSSR at 108 dB
  • Input Voltage Noise: 20 nV/√Hz
  • Temperature Range: −40°C to 125°C
  • Rail-to-Rail Input and Output (RRIO)

The LMV84x devices are low-voltage and low-power operational amplifiers that operate with supply voltages ranging from 2.7 V to 12 V and have rail-to-rail input and output capability. Their low offset voltage, low supply current, and CMOS inputs make them ideal for high impedance sensor interface and battery-powered applications.

The single LMV841 is offered in the space-saving 5-pin SC70 package, the dual LMV842 in the 8-pin VSSOP and 8-pin SOIC packages, and the quad LMV844 in the 14-pin TSSOP and 14-pin SOIC packages. These small packages are ideal solutions for area-constrained PCBs and portable electronics.

The LMV84x devices are low-voltage and low-power operational amplifiers that operate with supply voltages ranging from 2.7 V to 12 V and have rail-to-rail input and output capability. Their low offset voltage, low supply current, and CMOS inputs make them ideal for high impedance sensor interface and battery-powered applications.

The single LMV841 is offered in the space-saving 5-pin SC70 package, the dual LMV842 in the 8-pin VSSOP and 8-pin SOIC packages, and the quad LMV844 in the 14-pin TSSOP and 14-pin SOIC packages. These small packages are ideal solutions for area-constrained PCBs and portable electronics.

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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 LMV84x CMOS Input, RRIO, Low Power, Wide Supply Range, 4.5-MHz Operational Amplifiers datasheet (Rev. I) PDF | HTML 2017/10/20
電子書 The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML 2017/3/28
應用說明 AN-1708 LMV841 Stability Considerations (Rev. A) 2013/4/26

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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模擬型號

LMV84x PSpice Model (Rev. D)

SNOM039D.ZIP (30 KB) - PSpice 模型
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模擬型號

LMV84x TINA-TI Reference Design (Rev. B)

SNOM639B (300 KB) - TINA-TI 參考設計
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模擬型號

LMV84x TINA-TI Spice Model (Rev. B)

SNOM638B.ZIP (11 KB) - TINA-TI Spice 模型
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計算工具

OPAMP-NOISECALC — Noise Calculator

This folder contains three tools to help in understandning and managing noise in cicuits. The included tools are:

  • A noise generator tool - This is a Lab View 4-Run Time executable that generates Gaussian white noise, uniform white noise, 1/f noise, short noise, and 60Hz line noise. Temporal data, (...)
支援產品和硬體
封裝 針腳 CAD 符號、佔位空間與 3D 模型
TSSOP (PW) 14 Ultra Librarian
SOIC (D) 14 Ultra Librarian
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