OPA141

現行

單路、10-MHz、單電源供電、低雜訊、JFET 精密放大器

產品詳細資料

Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.5 Rail-to-rail In to V-, Out GBW (typ) (MHz) 10 Slew rate (typ) (V/µs) 20 Vos (offset voltage at 25°C) (max) (mV) 3.5 Iq per channel (typ) (mA) 1.8 Vn at 1 kHz (typ) (nV√Hz) 6.5 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 2 Input bias current (max) (pA) 20 CMRR (typ) (dB) 126 Iout (typ) (A) 0.03 Architecture FET Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) -3.5 Output swing headroom (to negative supply) (typ) (V) 0.35 Output swing headroom (to positive supply) (typ) (V) -0.35
Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.5 Rail-to-rail In to V-, Out GBW (typ) (MHz) 10 Slew rate (typ) (V/µs) 20 Vos (offset voltage at 25°C) (max) (mV) 3.5 Iq per channel (typ) (mA) 1.8 Vn at 1 kHz (typ) (nV√Hz) 6.5 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 2 Input bias current (max) (pA) 20 CMRR (typ) (dB) 126 Iout (typ) (A) 0.03 Architecture FET Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) -3.5 Output swing headroom (to negative supply) (typ) (V) 0.35 Output swing headroom (to positive supply) (typ) (V) -0.35
SOIC (D) 8 29.4 mm² 4.9 x 6 VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • Low Supply Current: 2.3mA max
  • Low Offset Drift: 10µV/°C max
  • Low Input Bias Current: 20pA max
  • Very Low 1/f Noise: 250nVPP
  • Low Noise: 6.5nV/√Hz
  • Wide Bandwidth: 10MHz
  • Slew Rate: 20V/µs
  • Input Voltage Range Includes V–
  • Rail-to-Rail Output
  • Single-Supply Operation: 4.5V to 36V
  • Dual-Supply Operation: ±2.25V to ±18V
  • No Phase Reversal
  • MSOP-8, TSSOP Packages
  • APPLICATIONS
    • Battery-Powered Instruments
    • Industrial Controls
    • Medical Instrumentation
    • Photodiode Amplifiers
    • Active Filters
    • Data Acquisition Systems
    • Portable Audio
    • Automatic Test Systems

All other trademarks are the property of their respective owners

  • Low Supply Current: 2.3mA max
  • Low Offset Drift: 10µV/°C max
  • Low Input Bias Current: 20pA max
  • Very Low 1/f Noise: 250nVPP
  • Low Noise: 6.5nV/√Hz
  • Wide Bandwidth: 10MHz
  • Slew Rate: 20V/µs
  • Input Voltage Range Includes V–
  • Rail-to-Rail Output
  • Single-Supply Operation: 4.5V to 36V
  • Dual-Supply Operation: ±2.25V to ±18V
  • No Phase Reversal
  • MSOP-8, TSSOP Packages
  • APPLICATIONS
    • Battery-Powered Instruments
    • Industrial Controls
    • Medical Instrumentation
    • Photodiode Amplifiers
    • Active Filters
    • Data Acquisition Systems
    • Portable Audio
    • Automatic Test Systems

All other trademarks are the property of their respective owners

The OPA141, OPA2141, and OPA4141 amplifier family is a series of low-power JFET input amplifiers that feature good drift and low input bias current. The rail-to-rail output swing and input range that includes V– allow designers to take advantage of the low-noise characteristics of JFET amplifiers while also interfacing to modern, single-supply, precision analog-to-digital converters (ADCs) and digital-to-analog converters (DACs).

The OPA141 achieves 10MHz unity-gain bandwidth and 20V/µs slew rate while consuming only 1.8mA (typ) of quiescent current. It runs on a single 4.5 to 36V supply or dual ±2.25V to ±18V supplies.

All versions are fully specified from –40°C to +125°C for use in the most challenging environments. The OPA141 (single) and OPA2141 (dual) versions are available in both MSOP-8 and SO-8 packages; the OPA4141 (quad) is available in the SO-14 and TSSOP-14 packages.

The OPA141, OPA2141, and OPA4141 amplifier family is a series of low-power JFET input amplifiers that feature good drift and low input bias current. The rail-to-rail output swing and input range that includes V– allow designers to take advantage of the low-noise characteristics of JFET amplifiers while also interfacing to modern, single-supply, precision analog-to-digital converters (ADCs) and digital-to-analog converters (DACs).

The OPA141 achieves 10MHz unity-gain bandwidth and 20V/µs slew rate while consuming only 1.8mA (typ) of quiescent current. It runs on a single 4.5 to 36V supply or dual ±2.25V to ±18V supplies.

All versions are fully specified from –40°C to +125°C for use in the most challenging environments. The OPA141 (single) and OPA2141 (dual) versions are available in both MSOP-8 and SO-8 packages; the OPA4141 (quad) is available in the SO-14 and TSSOP-14 packages.

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技術文件

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重要文件 類型 標題 格式選項 日期
* Data sheet 10MHz, Rail-to-Rail Output, Precision, Low-Noise, JFET Operational Amplifier datasheet (Rev. B) 2010年 5月 2日
Application brief MUX-Friendly, Precision Operational Amplifiers (Rev. C) PDF | HTML 2022年 2月 8日
E-book The Signal e-book: A compendium of blog posts on op amp design topics 2017年 3月 28日
Analog Design Journal Analog Applications Journal 4Q 2014 2014年 10月 24日
Analog Design Journal Distortion and source impedance in JFET-input op amps 2014年 10月 24日
Application note OPA141, OPA2141, OPA4141 EMI Immunity Performance 2012年 10月 31日
Application note Compensate Transimpedance Amplifiers Intuitively (Rev. A) 2005年 3月 30日

設計與開發

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AMP-PDK-EVM 套件支援五種最熱門的業界標準封裝,包括:

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設計工具

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設計工具

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使用指南: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOIC (D) 8 Ultra Librarian
VSSOP (DGK) 8 Ultra Librarian

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  • 材料內容
  • 認證摘要
  • 進行中的可靠性監測
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