首頁 放大器 運算放大器 (op amps) 精密運算放大器 (Vos < 1mV)
首頁
放大器
運算放大器 (op amps)
精密運算放大器 (Vos < 1mV)

OPA388

現行

單通道、10MHz、CMOS、零漂移、零交越、真實 RRIO 精密運算放大器

立即訂購
產品規格表

OPA388

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.5 Vos (offset voltage at 25°C) (max) (mV) 0.005 Offset drift (typ) (µV/°C) 0.005 Input bias current (max) (pA) 350 GBW (typ) (MHz) 10 Features EMI Hardened, High Cload Drive, Zero Crossover, Zero Drift Slew rate (typ) (V/µs) 5 Rail-to-rail In, Out Iq per channel (typ) (mA) 1.7 Vn at 1 kHz (typ) (nV√Hz) 7 CMRR (typ) (dB) 138 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.06 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) -0.005 THD + N at 1 kHz (typ) (%) 0.0005
Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.5 Vos (offset voltage at 25°C) (max) (mV) 0.005 Offset drift (typ) (µV/°C) 0.005 Input bias current (max) (pA) 350 GBW (typ) (MHz) 10 Features EMI Hardened, High Cload Drive, Zero Crossover, Zero Drift Slew rate (typ) (V/µs) 5 Rail-to-rail In, Out Iq per channel (typ) (mA) 1.7 Vn at 1 kHz (typ) (nV√Hz) 7 CMRR (typ) (dB) 138 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.06 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) -0.005 THD + N at 1 kHz (typ) (%) 0.0005
SOT-23 (DBV) 5 8.12 mm² (2.9 mm × 2.8 mm) SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm) VSSOP (DGK) 8 14.7 mm² (3 mm × 4.9 mm)
  • Ultra-low offset voltage: ±0.25 µV
  • Zero drift: ±0.005 µV/°C
  • Zero crossover: 140-dB CMRR true RRIO
  • Low noise: 7.0 nV√Hz at 1 kHz
  • No 1/f noise: 140 nVPP (0.1 Hz to 10 Hz)
  • Fast settling: 2 µs (1 V to 0.01%)
  • Gain bandwidth: 10 MHz
  • Single supply: 2.5 V to 5.5 V
  • Dual supply: ±1.25 V to ±2.75 V
  • True rail-to-rail input and output
  • EMI/RFI filtered inputs
  • Industry-standard packages:
    • Single in SOIC-8, SOT-23-5, and VSSOP-8
    • Dual in SOIC-8 and VSSOP-8
    • Quad in SOIC-14 and TSSOP-14
  • Ultra-low offset voltage: ±0.25 µV
  • Zero drift: ±0.005 µV/°C
  • Zero crossover: 140-dB CMRR true RRIO
  • Low noise: 7.0 nV√Hz at 1 kHz
  • No 1/f noise: 140 nVPP (0.1 Hz to 10 Hz)
  • Fast settling: 2 µs (1 V to 0.01%)
  • Gain bandwidth: 10 MHz
  • Single supply: 2.5 V to 5.5 V
  • Dual supply: ±1.25 V to ±2.75 V
  • True rail-to-rail input and output
  • EMI/RFI filtered inputs
  • Industry-standard packages:
    • Single in SOIC-8, SOT-23-5, and VSSOP-8
    • Dual in SOIC-8 and VSSOP-8
    • Quad in SOIC-14 and TSSOP-14

The OPAx388 (OPA388, OPA2388, and OPA4388) series of precision operational amplifiers are ultra-low noise, fast-settling, zero-drift, zero-crossover devices that provide rail-to-rail input and output operation. These features and excellent ac performance, combined with only 0.25 µV of offset and 0.005 µV/°C of drift over temperature, makes the OPAx388 a great choice for driving high-precision, analog-to-digital converters (ADCs) or buffering the output of high-resolution, digital-to-analog converters (DACs). This design results in excellent performance when driving analog-to-digital converters (ADCs) without degradation of linearity. The OPA388 (single version) is available in the VSSOP-8, SOT23-5, and SOIC-8 packages. The OPA2388 (dual version) is offered in the VSSOP-8 and SO-8 packages. The OPA4388 (quad version) is offered in the TSSOP-14 and SO-14 packages. All versions are specified over the industrial temperature range of –40°C to +125°C.

The OPAx388 (OPA388, OPA2388, and OPA4388) series of precision operational amplifiers are ultra-low noise, fast-settling, zero-drift, zero-crossover devices that provide rail-to-rail input and output operation. These features and excellent ac performance, combined with only 0.25 µV of offset and 0.005 µV/°C of drift over temperature, makes the OPAx388 a great choice for driving high-precision, analog-to-digital converters (ADCs) or buffering the output of high-resolution, digital-to-analog converters (DACs). This design results in excellent performance when driving analog-to-digital converters (ADCs) without degradation of linearity. The OPA388 (single version) is available in the VSSOP-8, SOT23-5, and SOIC-8 packages. The OPA2388 (dual version) is offered in the VSSOP-8 and SO-8 packages. The OPA4388 (quad version) is offered in the TSSOP-14 and SO-14 packages. All versions are specified over the industrial temperature range of –40°C to +125°C.
filter 尋找其它 精密運算放大器 (Vos < 1mV)
下載 觀看有字幕稿的影片 影片

您可能會感興趣的類似產品

open-in-new 比較替代產品
針腳對針腳的功能與所比較的裝置相同。
OPA387 現行 超高精密 (2 µV)、零漂移 (0.003 μV/C)、低輸入偏壓電流運算放大器 (單) Lower offset and lower power zero-drift amplifier.

技術文件

找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 19
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 OPAx388 Precision, Zero-Drift, Zero-Crossover, True Rail-to-Rail, Input/Output Operational Amplifiers datasheet (Rev. D) PDF | HTML 2020/7/14
白皮書 Optimizing Chopper Amplifier Accuracy (Rev. A) PDF | HTML 2025/5/15
Application brief Offset Correction Methods: Laser Trim, e-Trim, and Chopper (Rev. D) PDF | HTML 2024/12/5
Circuit design High-speed overcurrent detection circuit (Rev. B) PDF | HTML 2024/10/2
Application brief Zero-crossover Amplifiers: Features and Benefits (Rev. B) PDF | HTML 2023/11/8
Application brief How to Select Amplifiers for Pressure Transmitter Applications (Rev. B) PDF | HTML 2023/2/14
電子書 An Engineer’s Guide to Designing with Precision Amplifiers 2021/4/29
Application brief Zero-Drift Amplifiers: Features and Benefits (Rev. C) 2021/1/28
Application brief Minimize Errors in Weigh-Scales With Zero-Drift, EMI-Hardened, Precision Amps (Rev. A) PDF | HTML 2020/12/8
Application brief Low-Power, Small-Size, High-Side Current Monitoring 2020/6/3
技術文章 How to design an infrared thermometer quickly PDF | HTML 2020/4/7
Application brief EMI-Hardened Op Amps Reduce Errors in EKGs (Rev. A) 2019/8/21
Application brief EMI-Hardened Op Amps Reduce Errors in Infusion Pumps (Rev. A) 2019/8/21
Circuit design Non-inverting op amp with non-inverting positive reference voltage circuit (Rev. A) 2019/2/1
Application brief Green-Williams-Lis: Improved Op Amp Spice Model 2019/1/28
Application brief Multichannel Analog Input Modules for PLC Equipment 2019/1/4
Application brief How to Properly Configure Unused Operational Amplifiers (Rev. A) 2018/9/21
Application brief Dual Bipolar Power-Supply Considerations for Amplifiers 2017/8/1
電子書 The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML 2017/3/28

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
支援產品和硬體
模擬型號

OPAx388 PSpice Model (Rev. D)

SBOMAB3D.ZIP (29 KB) - PSpice 模型
支援產品和硬體
模擬型號

OPAx388 TINA-TI Reference Design (Rev. C)

SBOMAB1C (342 KB) - TINA-TI 參考設計
支援產品和硬體
模擬型號

OPAx388 TINA-TI Spice Model (Rev. C)

SBOMAB2C.ZIP (10 KB) - TINA-TI Spice 模型
支援產品和硬體
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
計算工具

OPAMP-NOISECALC — Noise Calculator

This folder contains three tools to help in understandning and managing noise in cicuits. The included tools are:

  • A noise generator tool - This is a Lab View 4-Run Time executable that generates Gaussian white noise, uniform white noise, 1/f noise, short noise, and 60Hz line noise. Temporal data, (...)
支援產品和硬體
設計工具

CIRCUIT060064 — 具有非反相正參考電壓電路的非反相運算放大器

此設計使用具非反相正參考的非反相放大器，將 –1 V 至 3 V 輸入訊號轉爲 0.05 V 至 4.95 V 輸出電壓。此電路可將具有正斜率和負偏移的感測器輸出電壓轉為可用的 ADC 輸入電壓範圍。
支援產品和硬體
設計工具

CIRCUIT060075 — 高速過電流偵測電路

這款高速低壓側過電流偵測解決方案搭載單一零漂移快速安定放大器 (OPA388) 和一個高速比較器 (TLV3201)。此電路專為監控快速電流訊號及過電流事件的應用而設計，例如馬達和電源供應單元中的電流偵測。

選擇 OPA388 是因為它具有最寬的頻寬、超低偏移和快速電壓轉換率。選擇 TLV3201 是因為它響應快速，傳播延遲小，僅為 40 ns，上升時間為 4.8 ns。這樣比較器就能在暫態響應時間需求內，快速響應並警示系統發生過電流事件。推拉輸出級也允許比較器直接介接微控制器的邏輯位準。TLV3201 也具備低功耗，靜態電流為 40 µA。

(...)
支援產品和硬體
設計工具

SBOC513 — Simulation for Non-Inverting Op Amp With Non-Inverting Positive Reference

支援產品和硬體
參考設計

TIDA-01402 — 用於緩衝 DAC 訊號的高精密度參考設計

此參考設計採用業界首款零交越和零漂移放大器 (OPA388)，可緩衝數位轉類比轉換器 (DAC) 的類比輸出。它展示了零交越和零漂移功能的重要性，以及這些功能如何有效降低系統的積分非線性 (INL) 以及如何利用 DAC 的全刻度範圍 (DAC8830)。
支援產品和硬體
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-23 (DBV) 5 Ultra Librarian
SOIC (D) 8 Ultra Librarian
VSSOP (DGK) 8 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

訂購與品質

建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片