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運算放大器 (op amps)
精密運算放大器 (Vos < 1mV)

OPA2227

現行

雙路高精度低雜訊運算放大器

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OPA2210 現行 超低雜訊 (2.2nV/√Hz)、super beta (0.3nA)、高精度 (5µV、0.1µV/°C)、36V、雙路運算放大器 Wide bandwidth (18 Mhz) super beta precision amplifier with lower voltage and current noise

OPA2227

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) 5 Vos (offset voltage at 25°C) (max) (mV) 0.075 Offset drift (typ) (µV/°C) 0.1 Input bias current (max) (pA) 10000 GBW (typ) (MHz) 8 Slew rate (typ) (V/µs) 2.3 Rail-to-rail No Iq per channel (typ) (mA) 3.7 Vn at 1 kHz (typ) (nV√Hz) 3 CMRR (typ) (dB) 138 Rating Catalog Operating temperature range (°C) -40 to 85 Iout (typ) (A) 0.045 Architecture Bipolar Input common mode headroom (to negative supply) (typ) (V) 2 Input common mode headroom (to positive supply) (typ) (V) -2 Output swing headroom (to negative supply) (typ) (V) 2 Output swing headroom (to positive supply) (typ) (V) -2 THD + N at 1 kHz (typ) (%) 0.00005
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) 5 Vos (offset voltage at 25°C) (max) (mV) 0.075 Offset drift (typ) (µV/°C) 0.1 Input bias current (max) (pA) 10000 GBW (typ) (MHz) 8 Slew rate (typ) (V/µs) 2.3 Rail-to-rail No Iq per channel (typ) (mA) 3.7 Vn at 1 kHz (typ) (nV√Hz) 3 CMRR (typ) (dB) 138 Rating Catalog Operating temperature range (°C) -40 to 85 Iout (typ) (A) 0.045 Architecture Bipolar Input common mode headroom (to negative supply) (typ) (V) 2 Input common mode headroom (to positive supply) (typ) (V) -2 Output swing headroom (to negative supply) (typ) (V) 2 Output swing headroom (to positive supply) (typ) (V) -2 THD + N at 1 kHz (typ) (%) 0.00005
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm) PDIP (P) 8 92.5083 mm² (9.81 mm × 9.43 mm)
  • Low noise: 3 nV/√Hz
  • Wide bandwidth:
    • OPA227: 8 MHz, 2.3 V/µs
    • OPA228: 33 MHz, 10 V/µs
  • Settling time: 5 µs
  • High CMRR: 138 dB
  • High open-loop gain: 160 dB
  • Low input bias current: 10 nA maximum
  • Low offset voltage: 75 µV maximum
  • Wide supply range: ±2.5 V to ±18 V
  • Single, dual, and quad versions
  • Low noise: 3 nV/√Hz
  • Wide bandwidth:
    • OPA227: 8 MHz, 2.3 V/µs
    • OPA228: 33 MHz, 10 V/µs
  • Settling time: 5 µs
  • High CMRR: 138 dB
  • High open-loop gain: 160 dB
  • Low input bias current: 10 nA maximum
  • Low offset voltage: 75 µV maximum
  • Wide supply range: ±2.5 V to ±18 V
  • Single, dual, and quad versions

The OPAx227 and OPAx228 series operational amplifiers combine low noise and wide bandwidth with high precision to make them an excellent choice for applications requiring both ac and precision dc performance.

The OPAx227 are unity-gain stable and features high slew rate (2.3 V/µs) and wide bandwidth (8 MHz). The OPAx228 are optimized for closed-loop gains of 5 or greater, and offers higher speed with a slew rate of 10 V/µs and a bandwidth of 33 MHz.

The OPAx227 and OPAx228 series operational amplifiers are an excellent choice for professional audio equipment. In addition, low quiescent current and low cost make these op amps an excellent choice for portable applications requiring high precision.

The OPAx227 and OPAx228 series operational amplifiers are pin-for-pin replacements for the industry-standard OP27 and OP37 with substantial improvements across the board. The dual and quad versions are available for space savings and per-channel cost reduction.

The OPAx227 and OPAx228, are available in DIP-8 and SO-8 packages. The OPA4227 and OPA4228 are available in DIP-14 and SO-14 packages with standard pin configurations. Operation is specified from –40°C to +85°C.

The OPAx227 and OPAx228 series operational amplifiers combine low noise and wide bandwidth with high precision to make them an excellent choice for applications requiring both ac and precision dc performance.

The OPAx227 are unity-gain stable and features high slew rate (2.3 V/µs) and wide bandwidth (8 MHz). The OPAx228 are optimized for closed-loop gains of 5 or greater, and offers higher speed with a slew rate of 10 V/µs and a bandwidth of 33 MHz.

The OPAx227 and OPAx228 series operational amplifiers are an excellent choice for professional audio equipment. In addition, low quiescent current and low cost make these op amps an excellent choice for portable applications requiring high precision.

The OPAx227 and OPAx228 series operational amplifiers are pin-for-pin replacements for the industry-standard OP27 and OP37 with substantial improvements across the board. The dual and quad versions are available for space savings and per-channel cost reduction.

The OPAx227 and OPAx228, are available in DIP-8 and SO-8 packages. The OPA4227 and OPA4228 are available in DIP-14 and SO-14 packages with standard pin configurations. Operation is specified from –40°C to +85°C.
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OPA2228 現行 雙路、寬頻、高精確度、低雜訊運算放大器 Wider bandwidth (33 Mhz) decompensated low noise (3 nV/√Hz) precision amplifier

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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 OPAx227, OPAx228 High-Precision, Low-Noise Operational Amplifiers datasheet (Rev. C) PDF | HTML 2023/3/13
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 OPA227, OPA2227, OPA4227, OPA228, OPA2228, OPA4228 EMI Immunity Performance (Rev. A) 2012/11/2

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

ADS5231EVM — ADS5231 雙通道、12 位元、40-MSPS 類比轉數位轉換器評估模組

ADS5231EVM 設計旨在提供易於評估具備 CMOS 輸出的雙 12 位元、40 MSPS ADS5231 類比轉數位轉換器的性能。ADS5231EVM 可配對 ADC 數位擷取卡 TSW1100，以快速評估裝置的效能。

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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

PSpice Simulation Companion for DAC Force And Sense Reference Drive Circuit

SBOMBX7.ZIP (101 KB) - PSpice 模型
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模擬型號

OPAx227 PSpice Model (Rev. E)

SBOM051E.ZIP (30 KB) - PSpice 模型
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模擬型號

OPAx227 TINA-TI Reference Design (Rev. D)

SBOC188D (342 KB) - TINA-TI 參考設計
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模擬型號

OPAx227 TINA-TI Spice Model (Rev. C)

SBOM267C.ZIP (10 KB) - TINA-TI Spice 模型
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模擬型號

TINA-TI Simulation Companion for DAC Force And Sense Reference Drive Circuit (Rev. A)

SBAM412A.ZIP (69 KB) - TINA-TI 參考設計
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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
SOIC (D) 8 Ultra Librarian
PDIP (P) 8 Ultra Librarian
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