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高速運算放大器 (GBW ≥ 50 MHz)
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OPA620

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250MHz、精密軌至軌 I/O CMOS 運算放大器

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產品規格表

OPA620

現行
產品規格表 立即訂購

產品詳細資料

Architecture FET / CMOS Input, Voltage FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 GBW (typ) (MHz) 100 BW at Acl (MHz) 250 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 190 Vn at flatband (typ) (nV√Hz) 5.5 Vn at 1 kHz (typ) (nV√Hz) 5.5 Iq per channel (typ) (mA) 5.1 Vos (offset voltage at 25°C) (max) (mV) 0.3 Rail-to-rail In, Out Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 96 Input bias current (max) (pA) 50 Offset drift (typ) (µV/°C) 1.2 Iout (typ) (mA) 100 2nd harmonic (dBc) 79 3rd harmonic (dBc) 77 Frequency of harmonic distortion measurement (MHz) 1
Architecture FET / CMOS Input, Voltage FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 GBW (typ) (MHz) 100 BW at Acl (MHz) 250 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 190 Vn at flatband (typ) (nV√Hz) 5.5 Vn at 1 kHz (typ) (nV√Hz) 5.5 Iq per channel (typ) (mA) 5.1 Vos (offset voltage at 25°C) (max) (mV) 0.3 Rail-to-rail In, Out Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 96 Input bias current (max) (pA) 50 Offset drift (typ) (µV/°C) 1.2 Iout (typ) (mA) 100 2nd harmonic (dBc) 79 3rd harmonic (dBc) 77 Frequency of harmonic distortion measurement (MHz) 1
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • Unity-gain bandwidth: 250MHz
  • Wide bandwidth: 100MHz GBW
  • High precision:
    • Input offset voltage at 25℃ : ±300µV (maximum)
    • Input offset voltage (-40℃ to 125℃) : ±1mV (maximum)
    • Offset drift: 1.2µV/°C (typical)
  • High slew rate: 190V/µs
  • Low noise: 5.5nV/√Hz
  • Rail-to-rail I/O
  • High output current: > 100mA
  • Low input bias current: 3pA
  • Quiescent current: 5.1mA
  • Thermal shutdown
  • Supply range: 2.5V to 5.5V
  • Unity-gain bandwidth: 250MHz
  • Wide bandwidth: 100MHz GBW
  • High precision:
    • Input offset voltage at 25℃ : ±300µV (maximum)
    • Input offset voltage (-40℃ to 125℃) : ±1mV (maximum)
    • Offset drift: 1.2µV/°C (typical)
  • High slew rate: 190V/µs
  • Low noise: 5.5nV/√Hz
  • Rail-to-rail I/O
  • High output current: > 100mA
  • Low input bias current: 3pA
  • Quiescent current: 5.1mA
  • Thermal shutdown
  • Supply range: 2.5V to 5.5V

The single OPA620 is a high-speed, voltage-feedback operational amplifier designed for current sensing and precision applications. Offering unity-gain stability and high output current drive, the OPA620 delivers enhanced signal-chain precision across temperature, exceeding the performance of conventional wide-bandwidth CMOS amplifiers. Operating with a low quiescent current of 5.1mA per channel, the OPA620 is suitable for power-sensitive applications.

The OPA620 operates from a single or dual supply voltage ranging from 2.5V (±1.25V) to 5.5V (±2.75V). It features a wide common-mode input range extending beyond the supply rails, and delivers a rail-to-rail output swing within 30mV of the positive and negative supplies, enabling a wide dynamic range.

The OPA620 is available in a small 5-pin SOT-23 package and is specified for operation over an extended temperature range of –40°C to +125°C.

The single OPA620 is a high-speed, voltage-feedback operational amplifier designed for current sensing and precision applications. Offering unity-gain stability and high output current drive, the OPA620 delivers enhanced signal-chain precision across temperature, exceeding the performance of conventional wide-bandwidth CMOS amplifiers. Operating with a low quiescent current of 5.1mA per channel, the OPA620 is suitable for power-sensitive applications.

The OPA620 operates from a single or dual supply voltage ranging from 2.5V (±1.25V) to 5.5V (±2.75V). It features a wide common-mode input range extending beyond the supply rails, and delivers a rail-to-rail output swing within 30mV of the positive and negative supplies, enabling a wide dynamic range.

The OPA620 is available in a small 5-pin SOT-23 package and is specified for operation over an extended temperature range of –40°C to +125°C.
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重要文件 類型 標題 格式選項 日期
* Data sheet OPA620 250MHz, Precision, Rail-to-Rail I/O, CMOS Operational Amplifier datasheet PDF | HTML 2026年 4月 16日
Application brief High Speed Current Sensing for Data Center mCRPS Standards PDF | HTML 2026年 4月 7日
E-book An Engineer's Guide to Current Sensing (Rev. B) 2022年 4月 12日
Circuit design Discrete Wide Bandwidth INA Circuit (Rev. A) PDF | HTML 2020年 12月 23日
Application brief Increase Measurement Accuracy With HS Amps for Low-Side Shunt Current Monitoring (Rev. A) 2019年 8月 26日
E-book The Signal e-book: A compendium of blog posts on op amp design topics 2017年 3月 28日
User guide DEM-OPA-SO-1A User's Guide (Rev. B) 2012年 4月 12日
Application note Noise Analysis for High Speed Op Amps (Rev. A) 2005年 1月 17日

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

DEM-OPA-SOT-1A — 適用於 SOT-23 5 針腳和 6 針腳封裝的單路運算放大器評估模組

DEM-OPA-SOT-1A 是一種展示電路板，用於評估高速、寬頻運算放大器的運作和性能。此未組裝的 PC 電路板與採用小型電晶體 (SOT) DBV 封裝的產品相容。

使用指南: PDF
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模擬型號

OPA620 PSpice Model

SBOM095.ZIP (4 KB) - PSpice Model
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模擬型號

OPA620 TINA-TI Reference Design

SBOMCU0.TSC (30 KB) - TINA-TI Reference Design
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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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VOLT-DIVIDER-CALC — Voltage divider calculation tool

The voltage divider calculation tool (VOLT-DIVIDER-CALC) quickly determines a set of resistors for a voltage divider. This KnowledgeBase JavaScript utility can be used to find a set of resistors for a voltage divider to achieve the desired output voltage. VOLT-DIVIDER-CALC can also be used to (...)
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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。 

在 PSpice for TI 設計與模擬工具中，您可以搜尋 TI (...)
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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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SOT-23 (DBV) 5 Ultra Librarian
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