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運算放大器 (op amps)
高速運算放大器 (GBW ≥ 50 MHz)

OPA892

現行

具有超低總諧波失真 (THD) 的 2GHz 10V/V 穩定 0.95nV√Hz 運算放大器

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產品規格表

OPA892

現行
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產品詳細資料

Architecture Voltage FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 9 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 GBW (typ) (MHz) 2000 BW at Acl (MHz) 290 Acl, min spec gain (V/V) 10 Slew rate (typ) (V/µs) 700 Vn at flatband (typ) (nV√Hz) 0.95 Vn at 1 kHz (typ) (nV√Hz) 1 Iq per channel (typ) (mA) 7.5 Vos (offset voltage at 25°C) (max) (mV) 1 Rail-to-rail No Features Decompensated Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 106 Input bias current (max) (pA) 20000000 Offset drift (typ) (µV/°C) 1 Iout (typ) (mA) 200 2nd harmonic (dBc) 82 3rd harmonic (dBc) 108 Frequency of harmonic distortion measurement (MHz) 1
Architecture Voltage FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 9 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 GBW (typ) (MHz) 2000 BW at Acl (MHz) 290 Acl, min spec gain (V/V) 10 Slew rate (typ) (V/µs) 700 Vn at flatband (typ) (nV√Hz) 0.95 Vn at 1 kHz (typ) (nV√Hz) 1 Iq per channel (typ) (mA) 7.5 Vos (offset voltage at 25°C) (max) (mV) 1 Rail-to-rail No Features Decompensated Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 106 Input bias current (max) (pA) 20000000 Offset drift (typ) (µV/°C) 1 Iout (typ) (mA) 200 2nd harmonic (dBc) 82 3rd harmonic (dBc) 108 Frequency of harmonic distortion measurement (MHz) 1
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
  • Ultra-low 0.95nV/√Hz voltage noise
  • High speed:
    • 2GHz gain-bandwidth product
    • 700V/µs slew rate
    • 30ns settling time (0.1%)
  • Stable at gains ≥10V/V
  • Output drive, IO = 200mA (typical)
  • Very low distortion:
    • THD = –78dBc (f = 1MHz, RL = 150Ω)
    • THD+N = –114dBc (f = 1kHz, BW = 80kHz)
  • Wide range of power supplies:
    • VCC = ±4.5V to ±18V
  • Offset nulling pins on the OPA892
  • Ultra-low 0.95nV/√Hz voltage noise
  • High speed:
    • 2GHz gain-bandwidth product
    • 700V/µs slew rate
    • 30ns settling time (0.1%)
  • Stable at gains ≥10V/V
  • Output drive, IO = 200mA (typical)
  • Very low distortion:
    • THD = –78dBc (f = 1MHz, RL = 150Ω)
    • THD+N = –114dBc (f = 1kHz, BW = 80kHz)
  • Wide range of power supplies:
    • VCC = ±4.5V to ±18V
  • Offset nulling pins on the OPA892

The OPA892 and OPA2892 (OPAx892) are ultra-low voltage noise, high-speed voltage-feedback amplifiers that are an excellent choice for applications requiring low voltage noise, including communication and imaging. The single-amplifier OPA892 and the dual-amplifier OPA2892 offer very good ac performance with a 290MHz bandwidth, a 700V/µs slew rate, and a 30ns settling time (0.1%) for a gain of 10V/V. The OPAx892 are stable at gains of 10 or greater and –9 or less. These amplifiers have a high drive capability of 200mA and draw only 7.5mA of supply current per amplifier. With a total harmonic distortion (THD) of –68dBc at f = 1MHz, the OPAx892 are designed for applications requiring low distortion. Because the distortion remains low over a wide range of output voltages, the OPAx892 is useful in large dynamic-range applications such as imaging, sonar, and audio.

The OPA892 and OPA2892 (OPAx892) are ultra-low voltage noise, high-speed voltage-feedback amplifiers that are an excellent choice for applications requiring low voltage noise, including communication and imaging. The single-amplifier OPA892 and the dual-amplifier OPA2892 offer very good ac performance with a 290MHz bandwidth, a 700V/µs slew rate, and a 30ns settling time (0.1%) for a gain of 10V/V. The OPAx892 are stable at gains of 10 or greater and –9 or less. These amplifiers have a high drive capability of 200mA and draw only 7.5mA of supply current per amplifier. With a total harmonic distortion (THD) of –68dBc at f = 1MHz, the OPAx892 are designed for applications requiring low distortion. Because the distortion remains low over a wide range of output voltages, the OPAx892 is useful in large dynamic-range applications such as imaging, sonar, and audio.
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* 資料表 OPAx892 2GHz, 10V/V Stable, 0.95nV/√Hz, Ultra-Low THD Operational Amplifiers datasheet (Rev. A) PDF | HTML 2024/7/23

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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開發板

OPAMPEVM-SOIC — 適用於單通道/雙通道/四通道運算放大器的通用評估模組，具備或不具備關斷功能，採用 SOIC 封裝

OPAMPEVM-SOIC 是一款通用空白電路評估模組 (EVM)，可簡化表面黏著運算放大器的開發。藉由該設計可輕鬆快速地構建許多不同的電路。EVM 具有三個電路開發區，可分別取下和分離。

OPAMPEVM-SOIC 支援 SOIC-8、SOIC-14 和 SOIC-16 封裝。如需其他資訊，請參閱 OPAMPEVM-SOIC 使用指南。

請注意，EVM 本身為空板，因此請索取運算放大器裝置樣品。

OPAMPEVM-SOIC 支援 SOIC-8、SOIC-14 和 SOIC-16 封裝。如需其他資訊，請參閱 OPAMPEVM-SOIC 使用指南。 (...)

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模擬型號

OPA892 PSpice Model

SLOM523.ZIP (1912 KB) - PSpice 模型
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模擬型號

OPA892 TINA-TI Reference Design

SLOM522 (56 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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