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放大器
運算放大器 (op amps)
一般用途運算放大器

OPA2322

現行

雙路、5.5-V、20-MHz、低雜訊 (8.5-nV/√Hz)、RRIO 運算放大器

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OPA2323 現行 雙路、5.5V、20MHz、零交叉低雜訊 (6nV/√Hz) RRIO 運算放大器 Faster slew rate (30 V/us), lower offset voltage (0.8 mV), lower noise (8 nV/√Hz)

OPA2322

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) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 1.8 Rail-to-rail In, Out GBW (typ) (MHz) 20 Slew rate (typ) (V/µs) 10 Vos (offset voltage at 25°C) (max) (mV) 2 Iq per channel (typ) (mA) 1.5 Vn at 1 kHz (typ) (nV√Hz) 8.5 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 1.8 Features Shutdown, Small Size, Zero Crossover Input bias current (max) (pA) 10 CMRR (typ) (dB) 100 Iout (typ) (A) 0.065 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) 0.1 Output swing headroom (to negative supply) (typ) (V) 0.01 Output swing headroom (to positive supply) (typ) (V) -0.01
Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 1.8 Rail-to-rail In, Out GBW (typ) (MHz) 20 Slew rate (typ) (V/µs) 10 Vos (offset voltage at 25°C) (max) (mV) 2 Iq per channel (typ) (mA) 1.5 Vn at 1 kHz (typ) (nV√Hz) 8.5 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 1.8 Features Shutdown, Small Size, Zero Crossover Input bias current (max) (pA) 10 CMRR (typ) (dB) 100 Iout (typ) (A) 0.065 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) 0.1 Output swing headroom (to negative supply) (typ) (V) 0.01 Output swing headroom (to positive supply) (typ) (V) -0.01
WSON (DRG) 8 9 mm² (3 mm × 3 mm) VSSOP (DGS) 10 14.7 mm² (3 mm × 4.9 mm) SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm) VSSOP (DGK) 8 14.7 mm² (3 mm × 4.9 mm)
  • Gain Bandwidth: 20 MHz
  • Low Noise: 8.5 nV√Hz at 1 kHz
  • Slew Rate: 10 V/µs
  • Low THD+N: 0.0005%
  • Rail-to-Rail I/O
  • Offset Voltage: 2 mV (maximum)
  • Supply Voltage: 1.8 V to 5.5 V
  • Supply Current: 1.5 mA/ch
    • Shutdown: 0.1 µA/ch
  • Unity-Gain Stable
  • Small Packages:
    • SOT-23, SON, VSSOP, TSSOP
  • Gain Bandwidth: 20 MHz
  • Low Noise: 8.5 nV√Hz at 1 kHz
  • Slew Rate: 10 V/µs
  • Low THD+N: 0.0005%
  • Rail-to-Rail I/O
  • Offset Voltage: 2 mV (maximum)
  • Supply Voltage: 1.8 V to 5.5 V
  • Supply Current: 1.5 mA/ch
    • Shutdown: 0.1 µA/ch
  • Unity-Gain Stable
  • Small Packages:
    • SOT-23, SON, VSSOP, TSSOP

The OPAx322x series consists of single, dual, and quad-channel CMOS operational amplifiers featuring low noise and rail-to-rail inputs and outputs optimized for low-power, single-supply applications. Specified over a wide supply range of 1.8 V to 5.5 V, the low quiescent current of only 1.5 mA per channel makes these devices well-suited for power-sensitive applications.

The combination of very low noise (8.5 nV√Hz at 1 kHz), high-gain bandwidth (20 MHz), and fast slew rate (10 V/µs) make the OPAx322x family ideal for a wide range of applications, including signal conditioning and sensor amplification requiring high gains. Featuring low THD+N, the OPAx322x series is also excellent for consumer audio applications, particularly for single-supply systems.

The OPAx322S models include a shutdown mode that allow the amplifiers to be switched from normal operation to a standby current that is typically less than 0.1 µA.

The OPA322 (single version) is available in 5-pin SOT-23 and 6-pin SOT-23, while the OPA2322 (dual version) is offered in 8-pin VSSOP, 10-pin VSSOP, 8-pin SOIC, and 8-pin SON packages. The quad version OPA4322 comes in 14-pin TSSOP and 16-pin TSSOP packages. All versions are specified for operation from –40°C to +125°C.

The OPAx322x series consists of single, dual, and quad-channel CMOS operational amplifiers featuring low noise and rail-to-rail inputs and outputs optimized for low-power, single-supply applications. Specified over a wide supply range of 1.8 V to 5.5 V, the low quiescent current of only 1.5 mA per channel makes these devices well-suited for power-sensitive applications.

The combination of very low noise (8.5 nV√Hz at 1 kHz), high-gain bandwidth (20 MHz), and fast slew rate (10 V/µs) make the OPAx322x family ideal for a wide range of applications, including signal conditioning and sensor amplification requiring high gains. Featuring low THD+N, the OPAx322x series is also excellent for consumer audio applications, particularly for single-supply systems.

The OPAx322S models include a shutdown mode that allow the amplifiers to be switched from normal operation to a standby current that is typically less than 0.1 µA.

The OPA322 (single version) is available in 5-pin SOT-23 and 6-pin SOT-23, while the OPA2322 (dual version) is offered in 8-pin VSSOP, 10-pin VSSOP, 8-pin SOIC, and 8-pin SON packages. The quad version OPA4322 comes in 14-pin TSSOP and 16-pin TSSOP packages. All versions are specified for operation from –40°C to +125°C.
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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 OPAx322x 20-MHz, Low-Noise, 1.8-V, RRI/O, CMOS Operational Amplifier With Shutdown datasheet (Rev. F) PDF | HTML 2016/12/23
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 OPA322, OPA2322, OPA4322 EMIR Immunity Performance 2012/11/15

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

DIP-ADAPTER-EVM — DIP 轉接器評估模組

Speed up your op amp prototyping and testing with the DIP-Adapter-EVM, which provides a fast, easy and inexpensive way to interface with small, surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them directly to existing circuits.

The (...)

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開發板

DUAL-DIYAMP-EVM — 用於 SOIC 封裝的雙通道通用自製 (DIY) 放大器電路評估模組

DUAL-DIYAMP-EVM 是一系列評估模組 (EVM)，提供工程師與自組愛好者 (DIYer) 實作型放大器電路，協助快速評估設計概念並驗證模擬結果。其是專為採用業界標準 SOIC-8 封裝的雙封裝運算放大器而設計。其可實現反向及非反向放大器、Sallen key 濾波器、多回饋濾波器、含參考緩衝器的差動放大器、含雙回饋的 Riso、單端輸入至差動輸出、差動輸入至差動輸出、雙運算放大器儀器放大器和並聯運算放大器。

DUAL-DIYAMP-EVM 可快速製作電路原型，並採用常見的 0805 或 0603 表面裝載元件。透過多種組合方式，此 EVM (...)

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模擬型號

OPAx322 PSpice Model (Rev. F)

SBOM888F.ZIP (30 KB) - PSpice 模型
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模擬型號

OPAx322 TINA-TI Reference Design (Rev. C)

SBOM455C (315 KB) - TINA-TI 參考設計
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模擬型號

OPAx322 TINA-TI Spice Model (Rev. C)

SBOM454C.ZIP (10 KB) - TINA-TI Spice 模型
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模擬型號

OPAx32x Simulation for Half-Wave Rectifier Circuit TINA-TI Reference Design

SBOMCH9 (2170 KB) - TINA-TI 參考設計
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模擬型號

Simulation for Photodiode Amplifier TINA-TI Reference Design

SBOMCH8.ZIP (22 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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參考設計

TIDA-00316 — 介接電流輸出霍爾感測器和 CT 與虛擬差動 ADC/MCU 的參考設計

此參考設計提供將電流輸出霍爾感測器和電流變壓器介接至虛擬差動 ADC（獨立且整合至 MCU）。訊號調整電路的兩種變體設計可分別使用雙極和單極供應電壓測量馬達電流。兩個訊號調整電路皆在 ±0.5% 範圍內提供電流測量準確度，針對操作溫度範圍從 -25°C 至 75°C 使用。

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封裝 針腳 CAD 符號、佔位空間與 3D 模型
WSON (DRG) 8 Ultra Librarian
VSSOP (DGS) 10 Ultra Librarian
SOIC (D) 8 Ultra Librarian
VSSOP (DGK) 8 Ultra Librarian
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