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放大器
運算放大器 (op amps)
精密運算放大器 (Vos < 1mV)

OPA2241

現行

雙路、5V 單電源供電、微功率運算放大器

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產品規格表

OPA2241

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Vos (offset voltage at 25°C) (max) (mV) 0.25 Offset drift (typ) (µV/°C) 0.6 Input bias current (max) (pA) 20000 GBW (typ) (MHz) 0.035 Features High Cload Drive Slew rate (typ) (V/µs) 0.01 Rail-to-rail In to V-, Out Iq per channel (typ) (mA) 0.027 Vn at 1 kHz (typ) (nV√Hz) 45 CMRR (typ) (dB) 124 Rating Catalog Operating temperature range (°C) -40 to 85 Iout (typ) (A) 0.05 Architecture Bipolar Input common mode headroom (to negative supply) (typ) (V) -0.2 Input common mode headroom (to positive supply) (typ) (V) -0.8 Output swing headroom (to negative supply) (typ) (V) 0.05 Output swing headroom (to positive supply) (typ) (V) -0.05
Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Vos (offset voltage at 25°C) (max) (mV) 0.25 Offset drift (typ) (µV/°C) 0.6 Input bias current (max) (pA) 20000 GBW (typ) (MHz) 0.035 Features High Cload Drive Slew rate (typ) (V/µs) 0.01 Rail-to-rail In to V-, Out Iq per channel (typ) (mA) 0.027 Vn at 1 kHz (typ) (nV√Hz) 45 CMRR (typ) (dB) 124 Rating Catalog Operating temperature range (°C) -40 to 85 Iout (typ) (A) 0.05 Architecture Bipolar Input common mode headroom (to negative supply) (typ) (V) -0.2 Input common mode headroom (to positive supply) (typ) (V) -0.8 Output swing headroom (to negative supply) (typ) (V) 0.05 Output swing headroom (to positive supply) (typ) (V) -0.05
PDIP (P) 8 92.5083 mm² (9.81 mm × 9.43 mm) SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
  • OPAx241 family optimized for 5V supply
  • OPAx251 family optimized for ±15V supply
  • Micro power: IQ = 25µA
  • Single-supply operation
  • Rail-to-rail output (within 50mV)
  • Wide supply range
    • Single supply: 2.7V to 36V
    • Dual supply: ±1.35V to ±18V
  • Low offset voltage: ±250µV max
  • High common-mode rejection: 124dB
  • High open-loop gain: 128dB
  • Single, dual, and quad
  • OPAx241 family optimized for 5V supply
  • OPAx251 family optimized for ±15V supply
  • Micro power: IQ = 25µA
  • Single-supply operation
  • Rail-to-rail output (within 50mV)
  • Wide supply range
    • Single supply: 2.7V to 36V
    • Dual supply: ±1.35V to ±18V
  • Low offset voltage: ±250µV max
  • High common-mode rejection: 124dB
  • High open-loop gain: 128dB
  • Single, dual, and quad

The OPA241, OPA2241, OPA4241 (OPAx241), and OPA251, OPA2251, OPA4251 (OPAx251) devices are specifically designed for battery-powered, portable applications. In addition to very low power consumption (25µA), these amplifiers feature low offset voltage, rail-to-rail output swing, high common-mode rejection, and high open-loop gain.

The OPAx241 series is optimized for operation at low power supply voltage while the OPAx251 series is optimized for high-power supplies. Both series can operate from either single (2.7V to 36V) or dual supplies (±1.35V to ±18V). The input common-mode voltage range extends 200mV less than the negative supply—an excellent choice for single-supply applications.

The OPAx241 and OPAx251 are unity-gain stable and can drive large capacitive loads. Special design considerations makes sure that these products are easy to use. High performance is maintained as the amplifiers swing to the specified limits. Because the initial offset voltage (±250µV max) is so low, user adjustment is usually not required. However, external trim pins are provided for special applications (single versions only).

The OPAx241 and OPAx251 are fully specified from −40°C to +85°C and operate from −55°C to +125°C.

The OPA241, OPA2241, OPA4241 (OPAx241), and OPA251, OPA2251, OPA4251 (OPAx251) devices are specifically designed for battery-powered, portable applications. In addition to very low power consumption (25µA), these amplifiers feature low offset voltage, rail-to-rail output swing, high common-mode rejection, and high open-loop gain.

The OPAx241 series is optimized for operation at low power supply voltage while the OPAx251 series is optimized for high-power supplies. Both series can operate from either single (2.7V to 36V) or dual supplies (±1.35V to ±18V). The input common-mode voltage range extends 200mV less than the negative supply—an excellent choice for single-supply applications.

The OPAx241 and OPAx251 are unity-gain stable and can drive large capacitive loads. Special design considerations makes sure that these products are easy to use. High performance is maintained as the amplifiers swing to the specified limits. Because the initial offset voltage (±250µV max) is so low, user adjustment is usually not required. However, external trim pins are provided for special applications (single versions only).

The OPAx241 and OPAx251 are fully specified from −40°C to +85°C and operate from −55°C to +125°C.
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技術文件

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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 OPAx241, OPAx251 Single-Supply, MicroPower Operational Amplifiers datasheet (Rev. A) PDF | HTML 2024/6/28
電子書 The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML 2017/3/28

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

OPA2241 PSpice Model

SBOM677.ZIP (37 KB) - PSpice 模型
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模擬型號

OPA2241 TINA-TI Reference Design

SBOM679.TSC (97 KB) - TINA-TI 參考設計
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模擬型號

OPA2241 TINA-TI Spice Model

SBOM678.ZIP (3 KB) - TINA-TI Spice 模型
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模擬型號

OPAx241 PSpice Model (Rev. E)

SBOM054E.ZIP (32 KB) - PSpice 模型
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模擬型號

OPAx241 TINA-TI Reference Design (Rev. E)

SBOC238E (318 KB) - TINA-TI 參考設計
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模擬型號

OPAx241 TINA-TI Spice Model (Rev. E)

SBOM301E.ZIP (10 KB) - TINA-TI Spice 模型
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計算工具

ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

類比工程師的計算機旨在加速類比電路設計工程師定期使用的許多重複計算。此基於 PC 的工具提供圖形介面，列出各種常見計算，從使用回饋電阻器設定運算放大器增益到選擇適當的電路設計元件以穩定類比數位轉換器 (ADC) 驅動緩衝電路。

除了作為獨立工具使用外，此計算機還與類比工程師口袋參考中描述的概念相得益彰。

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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, (...)
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
PDIP (P) 8 Ultra Librarian
SOIC (D) 8 Ultra Librarian
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