OPA548

現行

高電壓、高電流、寬輸出電壓擺幅功率運算放大器

產品詳細資料

Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 8 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 60 Iout (typ) (A) 3 GBW (typ) (MHz) 1 Slew rate (typ) (V/µs) 10 Vos (offset voltage at 25°C) (max) (mV) 10 Offset drift (typ) (µV/°C) 30 Iq per channel (typ) (mA) 17 Features Adj Current Limit, Shutdown Rating Catalog Operating temperature range (°C) -40 to 85 Input bias current (max) (pA) 500000 CMRR (typ) (dB) 95 Rail-to-rail In to V- Architecture Bipolar
Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 8 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 60 Iout (typ) (A) 3 GBW (typ) (MHz) 1 Slew rate (typ) (V/µs) 10 Vos (offset voltage at 25°C) (max) (mV) 10 Offset drift (typ) (µV/°C) 30 Iq per channel (typ) (mA) 17 Features Adj Current Limit, Shutdown Rating Catalog Operating temperature range (°C) -40 to 85 Input bias current (max) (pA) 500000 CMRR (typ) (dB) 95 Rail-to-rail In to V- Architecture Bipolar
TO-263 (KTW) 7 153.924 mm² (10.1 mm × 15.24 mm) TO-220 (KC) 7 46.5328 mm² (10.16 mm × 4.58 mm) TO-220 (KVT) 7 83.9216 mm² (10.16 mm × 8.26 mm)
  • Wide supply range
    • Single supply: 8 V to 60 V
    • Dual supply: ±4 V to ±30 V
  • High-output current:
    • 3-A continuous
    • 5-A peak
  • Wide output voltage swing
  • Fully protected:
    • Thermal shutdown
    • Adjustable current limit
  • Output disable control˜
  • Thermal shutdown indicator
  • High slew rate: 10 V
  • Low quiescent current
  • Packages:
    • 7-lead TO-220, zip and straight leads
    • 7-lead DDPAK surface-mount
  • Wide supply range
    • Single supply: 8 V to 60 V
    • Dual supply: ±4 V to ±30 V
  • High-output current:
    • 3-A continuous
    • 5-A peak
  • Wide output voltage swing
  • Fully protected:
    • Thermal shutdown
    • Adjustable current limit
  • Output disable control˜
  • Thermal shutdown indicator
  • High slew rate: 10 V
  • Low quiescent current
  • Packages:
    • 7-lead TO-220, zip and straight leads
    • 7-lead DDPAK surface-mount

The OPA548 device is a low-cost, high-voltage, and high-current operational amplifier that is designed to drive a wide variety of loads. A laser-trimmed, monolithic, integrated circuit provides excellent low-level signal accuracy and high-output voltage and current.

The OPA548 operates from either single or dual supplies for design flexibility. In single-supply operation, the input common-mode range extends below ground.

The OPA548 is internally protected against overtemperature conditions and current overloads. In addition, the OPA548 is designed to provide an accurate, user-selected current limit. Unlike other designs that use a power resistor in series with the output current path, the OPA548 senses the load indirectly. The current limit is adjustable from 0 A to 5 A with an external resistor and potentiometer, or controllable digitally with a voltage-out or current-out DAC.

The Enable/Status (E/S) pin provides two functions. An input on the pin not only disables the output stage to effectively disconnect the load, but also reduces the quiescent current to conserve power. The E/S pin output can be monitored to determine if the OPA548 is in thermal shutdown.

The OPA548 device is available in an industry-standard 7-lead staggered and straight lead TO-220 package, and a 7-lead DDPAK surface-mount plastic power package. The copper tab allows easy mounting to a heat sink or circuit board for excellent thermal performance. The device is specified for operation over the extended industrial temperature range, –40°C to 85°C. A SPICE macromodel is available for design analysis.

The OPA548 device is a low-cost, high-voltage, and high-current operational amplifier that is designed to drive a wide variety of loads. A laser-trimmed, monolithic, integrated circuit provides excellent low-level signal accuracy and high-output voltage and current.

The OPA548 operates from either single or dual supplies for design flexibility. In single-supply operation, the input common-mode range extends below ground.

The OPA548 is internally protected against overtemperature conditions and current overloads. In addition, the OPA548 is designed to provide an accurate, user-selected current limit. Unlike other designs that use a power resistor in series with the output current path, the OPA548 senses the load indirectly. The current limit is adjustable from 0 A to 5 A with an external resistor and potentiometer, or controllable digitally with a voltage-out or current-out DAC.

The Enable/Status (E/S) pin provides two functions. An input on the pin not only disables the output stage to effectively disconnect the load, but also reduces the quiescent current to conserve power. The E/S pin output can be monitored to determine if the OPA548 is in thermal shutdown.

The OPA548 device is available in an industry-standard 7-lead staggered and straight lead TO-220 package, and a 7-lead DDPAK surface-mount plastic power package. The copper tab allows easy mounting to a heat sink or circuit board for excellent thermal performance. The device is specified for operation over the extended industrial temperature range, –40°C to 85°C. A SPICE macromodel is available for design analysis.

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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 OPA548 High-Voltage, High-Current Operational Amplifier datasheet (Rev. D) PDF | HTML 2019/12/18
電子書 An Engineer’s Guide to Designing with Precision Amplifiers 2021/4/29
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 DC MOTOR SPEED CONTROLLER: Control a DC Motor without Tachometer Feedback 2000/9/27
應用說明 Power Amplifier Stress and Power Handling Limitations 2000/9/27

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

OPA548EVM — OPA548 評估模組

OPA548EVM 是一個平台,用於評估 OPA548 在各種電路配置下的性能。電路配置包含反相/非反相增益、單/雙電源供應、內部/外部負載與外部參考。提供啟用/關閉接腳的存取,且 LED 提供電路狀態的視覺指示。

使用指南: PDF
支援產品和硬體
有庫存
限制:
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模擬型號

OPA548 PSpice Model (Rev. C)

SBOM088C.ZIP (25 KB) - PSpice 模型
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模擬型號

OPA548 TINA-TI Reference Design (Rev. C)

SBOC114C.TSC (116 KB) - TINA-TI 參考設計
支援產品和硬體
模擬型號

OPA548 TINA-TI Spice Model (Rev. B)

SBOM191B.ZIP (4 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。

支援產品和硬體
封裝 針腳 CAD 符號、佔位空間與 3D 模型
TO-263 (KTW) 7 Ultra Librarian
TO-220 (KC) 7 Ultra Librarian
TO-220 (KVT) 7 Ultra Librarian

訂購與品質

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