OPA4990

現行

產品詳細資料

Number of channels 4 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 40 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Rail-to-rail In, Out GBW (typ) (MHz) 1.1 Slew rate (typ) (V/µs) 4.5 Vos (offset voltage at 25°C) (max) (mV) 1.5 Iq per channel (typ) (mA) 0.12 Vn at 1 kHz (typ) (nV√Hz) 30 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 0.6 Features EMI Hardened, High Cload Drive, MUX Friendly, Small Size CMRR (typ) (dB) 115 Iout (typ) (A) 0.08 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.2 Input common mode headroom (to positive supply) (typ) (V) 0.2 Output swing headroom (to negative supply) (typ) (V) 0.025 Output swing headroom (to positive supply) (typ) (V) -0.025
Number of channels 4 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 40 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Rail-to-rail In, Out GBW (typ) (MHz) 1.1 Slew rate (typ) (V/µs) 4.5 Vos (offset voltage at 25°C) (max) (mV) 1.5 Iq per channel (typ) (mA) 0.12 Vn at 1 kHz (typ) (nV√Hz) 30 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 0.6 Features EMI Hardened, High Cload Drive, MUX Friendly, Small Size CMRR (typ) (dB) 115 Iout (typ) (A) 0.08 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.2 Input common mode headroom (to positive supply) (typ) (V) 0.2 Output swing headroom (to negative supply) (typ) (V) 0.025 Output swing headroom (to positive supply) (typ) (V) -0.025
SOIC (D) 14 51.9 mm² (8.65 mm × 6 mm) WQFN (RTE) 16 9 mm² (3 mm × 3 mm) TSSOP (PW) 14 32 mm² (5 mm × 6.4 mm) X2QFN (RUC) 14 4 mm² (2 mm × 2 mm)
  • Low offset voltage: ±300 µV
  • Low offset voltage drift: ±0.6 µV/°C
  • Low noise: 30 nV/√Hz at 1 kHz
  • High common-mode rejection: 115 dB
  • Low bias current: ±10 pA
  • Rail-to-rail input and output
  • MUX-friendly/comparator inputs
    • Amplifier operates with differential inputs up to supply rail
    • Amplifier can be used in open-loop or as comparator
  • Wide bandwidth: 1.1-MHz GBW
  • High slew rate: 4.5 V/µs
  • Low quiescent current: 120 µA per amplifier
  • Wide supply: ±1.35 V to ±20 V, 2.7 V to 40 V
  • Robust EMIRR performance: 78 dB at 1.8 GHz
  • Differential and common-mode input voltage range to supply rail
  • Low offset voltage: ±300 µV
  • Low offset voltage drift: ±0.6 µV/°C
  • Low noise: 30 nV/√Hz at 1 kHz
  • High common-mode rejection: 115 dB
  • Low bias current: ±10 pA
  • Rail-to-rail input and output
  • MUX-friendly/comparator inputs
    • Amplifier operates with differential inputs up to supply rail
    • Amplifier can be used in open-loop or as comparator
  • Wide bandwidth: 1.1-MHz GBW
  • High slew rate: 4.5 V/µs
  • Low quiescent current: 120 µA per amplifier
  • Wide supply: ±1.35 V to ±20 V, 2.7 V to 40 V
  • Robust EMIRR performance: 78 dB at 1.8 GHz
  • Differential and common-mode input voltage range to supply rail

The OPAx990 family (OPA990, OPA2990, and OPA4990) is a family of high voltage (40 V) general purpose operational amplifiers. These devices offer excellent DC precision and AC performance, including rail-to-rail input/output, low offset (±300 µV, typ), and low offset drift (±0.6 µV/°C, typ).

Unique features such as differential and common-mode input voltage range to the supply rail, high short-circuit current (±80 mA), high slew rate (4.5 V/µs), and shutdown make the OPAx990 an extremely flexible, robust, and high-performance op amp for high-voltage industrial applications.

The OPAx990 family of op amps is available in micro-size packages (such as X2QFN, WSON, and SOT-553), as well as standard packages (such as SOT-23, SOIC, and TSSOP), and is specified from –40°C to 125°C.

The OPAx990 family (OPA990, OPA2990, and OPA4990) is a family of high voltage (40 V) general purpose operational amplifiers. These devices offer excellent DC precision and AC performance, including rail-to-rail input/output, low offset (±300 µV, typ), and low offset drift (±0.6 µV/°C, typ).

Unique features such as differential and common-mode input voltage range to the supply rail, high short-circuit current (±80 mA), high slew rate (4.5 V/µs), and shutdown make the OPAx990 an extremely flexible, robust, and high-performance op amp for high-voltage industrial applications.

The OPAx990 family of op amps is available in micro-size packages (such as X2QFN, WSON, and SOT-553), as well as standard packages (such as SOT-23, SOIC, and TSSOP), and is specified 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 OPAx990 40-V Rail-to-Rail Input/Output, Low Offset Voltage, Low Power Op Amp datasheet (Rev. I) PDF | HTML 2021/8/13
Application brief Using An Op Amp for High-Side Current Sensing (Rev. A) PDF | HTML 2021/12/7
應用說明 Circuit for detecting input floating on ADS8681 ADC PDF | HTML 2021/3/31
Third party document Programmable analog output circuit maximizes industrial system flexibility 2021/2/1

設計與開發

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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

SMALL-AMP-DIP-EVM — 適用於採用小尺寸封裝之運算放大器的評估模組

SMALL-AMP-DIP-EVM 提供快速簡易方式,與許多業界標準小型封裝進行介接,因而加速小型封裝運算放大器原型設計。SMALL-AMP-DIP-EVM 支援八個小型封裝選項,包括 DPW-5 (X2SON)、DSG-8 (WSON)、DCN-8 (SOT)、DDF-8 (SOT)、RUG-10 (X2QFN)、RUC-14 (X2QFN)、RGY-14 (VQFN) 和 RTE-16 (WQFN)。

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模擬型號

OPA990, OPA2990 and OPA4990 PSpice Model (Rev. D)

SBOMAN7D.ZIP (22 KB) - PSpice 模型
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模擬型號

OPA990, OPA2990 and OPA4990 TINA-TI Reference Design (Rev. A)

SBOMAN6A.ZIP (18 KB) - TINA-TI 參考設計
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模擬型號

OPA990, OPA2990 and OPA4990 TINA-TI SPICE Model (Rev. A)

SBOMAN9A.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。

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參考設計

TIDA-011001 — 四通道、6A、0V 至 5V 可編程電源供應器參考設計

本參考設計提出一種高密度、四通道的數位控制可編程電源供應器,主要針對燒機與可靠度測試應用。此設計支援 12VDC 輸入匯流排,並提供四個獨立穩壓的輸出通道,每通道可在 0V 至 5V 範圍內調整,最大連續輸出電流為每通道 6A。

控制架構以 C2000™ 即時微控制器 (MCU) 為核心,用於執行 2P2Z (雙極點、雙零點) 數位補償器。16 位元、四通道 DAC 透過回饋接腳電流注入技術,動態調變降壓電源模組的輸出。此設計藉由內建低漂移 PGA 的 24 位元、16 通道 SAR ADC 同步擷取電流與電壓遙測數據,在全負載範圍內實現小於全刻度 ±0.005% 的負載調整率誤差。

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封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOIC (D) 14 Ultra Librarian
WQFN (RTE) 16 Ultra Librarian
TSSOP (PW) 14 Ultra Librarian
X2QFN (RUC) 14 Ultra Librarian

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