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OPA2380

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OPA2380 - 雙路高速精密度轉阻放大器

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產品規格表

OPA2380

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 2 GBW (typ) (MHz) 90 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Vos (offset voltage at 25°C) (max) (mV) 0.025 Rail-to-rail In to V-, Out Features Integrated TIA BW at Acl (MHz) 90 Operating temperature range (°C) -40 to 125 Rating Catalog
Number of channels 2 GBW (typ) (MHz) 90 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Vos (offset voltage at 25°C) (max) (mV) 0.025 Rail-to-rail In to V-, Out Features Integrated TIA BW at Acl (MHz) 90 Operating temperature range (°C) -40 to 125 Rating Catalog
VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • > 1MHz TRANSIMPEDANCE BANDWIDTH
  • EXCELLENT LONG-TERM VOS STABILITY
  • BIAS CURRENT: 50pA (max)
  • OFFSET VOLTAGE: 25µV (max)
  • DYNAMIC RANGE: 4 to 5 Decades
  • DRIFT: 0.1µV/°C (max)
  • GAIN BANDWIDTH: 90MHz
  • QUIESCENT CURRENT: 7.5mA
  • SUPPLY RANGE: 2.7V to 5.5V
  • SINGLE AND DUAL VERSIONS
  • MicroSIZE PACKAGE: MSOP-8
  • APPLICATIONS
    • PHOTODIODE MONITORING
    • PRECISION I/V CONVERSION
    • OPTICAL AMPLIFIERS
    • CAT-SCANNER FRONT-END

All trademarks are the property of their respective owners.
  • > 1MHz TRANSIMPEDANCE BANDWIDTH
  • EXCELLENT LONG-TERM VOS STABILITY
  • BIAS CURRENT: 50pA (max)
  • OFFSET VOLTAGE: 25µV (max)
  • DYNAMIC RANGE: 4 to 5 Decades
  • DRIFT: 0.1µV/°C (max)
  • GAIN BANDWIDTH: 90MHz
  • QUIESCENT CURRENT: 7.5mA
  • SUPPLY RANGE: 2.7V to 5.5V
  • SINGLE AND DUAL VERSIONS
  • MicroSIZE PACKAGE: MSOP-8
  • APPLICATIONS
    • PHOTODIODE MONITORING
    • PRECISION I/V CONVERSION
    • OPTICAL AMPLIFIERS
    • CAT-SCANNER FRONT-END

All trademarks are the property of their respective owners.

The OPA380 family of transimpedance amplifiers provides high-speed (90MHz Gain Bandwidth [GBW]) operation, with extremely high precision, excellent long-term stability, and very low 1/f noise. It is ideally suited for high-speed photodiode applications. The OPA380 features an offset voltage of 25µV, offset drift of 0.1µV/°C, and bias current of 50pA. The OPA380 far exceeds the offset, drift, and noise performance that conventional JFET op amps provide.

The signal bandwidth of a transimpedance amplifier depends largely on the GBW of the amplifier and the parasitic capacitance of the photodiode, as well as the feedback resistor. The 90MHz GBW of the OPA380 enables a transimpedance bandwidth of > 1MHz in most configurations. The OPA380 is ideally suited for fast control loops for power level on an optical fiber.

As a result of the high precision and low-noise characteristics of the OPA380, a dynamic range of 4 to 5 decades can be achieved. For example, this capability allows the measurement of signal currents on the order of 1nA, and up to 100µA in a single I/V conversion stage. In contrast to logarithmic amplifiers, the OPA380 provides very wide bandwidth throughout the full dynamic range. By using an external pull-down resistor to -5V, the output voltage range can be extended to include 0V.

The OPA380 (single) is available in MSOP-8 and SO-8 packages. The OPA2380 (dual) is available in the miniature MSOP-8 package. They are specified from -40°C to +125°C.

The OPA380 family of transimpedance amplifiers provides high-speed (90MHz Gain Bandwidth [GBW]) operation, with extremely high precision, excellent long-term stability, and very low 1/f noise. It is ideally suited for high-speed photodiode applications. The OPA380 features an offset voltage of 25µV, offset drift of 0.1µV/°C, and bias current of 50pA. The OPA380 far exceeds the offset, drift, and noise performance that conventional JFET op amps provide.

The signal bandwidth of a transimpedance amplifier depends largely on the GBW of the amplifier and the parasitic capacitance of the photodiode, as well as the feedback resistor. The 90MHz GBW of the OPA380 enables a transimpedance bandwidth of > 1MHz in most configurations. The OPA380 is ideally suited for fast control loops for power level on an optical fiber.

As a result of the high precision and low-noise characteristics of the OPA380, a dynamic range of 4 to 5 decades can be achieved. For example, this capability allows the measurement of signal currents on the order of 1nA, and up to 100µA in a single I/V conversion stage. In contrast to logarithmic amplifiers, the OPA380 provides very wide bandwidth throughout the full dynamic range. By using an external pull-down resistor to -5V, the output voltage range can be extended to include 0V.

The OPA380 (single) is available in MSOP-8 and SO-8 packages. The OPA2380 (dual) is available in the miniature MSOP-8 package. They are specified from -40°C to +125°C.
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* Data sheet Precision, High-Speed Transimpedance Amplifier datasheet (Rev. G) 2007年 9月 10日
E-book The Signal e-book: A compendium of blog posts on op amp design topics 2017年 3月 28日

設計與開發

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模擬型號

OPA2380 PSpice Model

SBOM499.ZIP (61 KB) - PSpice Model
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模擬型號

OPA2380 TINA-TI Reference Design

SBOM498.TSC (115 KB) - TINA-TI Reference Design
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模擬型號

OPA2380 TINA-TI Spice Model

SBOM500.ZIP (7 KB) - TINA-TI Spice Model
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計算工具

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

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)

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PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI 是有助於評估類比電路功能的設計和模擬環境。這款全功能設計和模擬套件使用 Cadence® 的類比分析引擎。PSpice for TI 包括業界最大的模型庫之一，涵蓋我們的類比和電源產品組合，以及特定類比行為模型，且使用無需支付費用。

PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前，建立完整的終端設備設計和解決方案原型，進而縮短上市時間並降低開發成本。 

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TINA-TI — 基於 SPICE 的類比模擬程式

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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VSSOP (DGK) 8 Ultra Librarian
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