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)

OPA928

現行

具 RRIO 的高電壓飛安培輸入偏壓精密 e-trim™ 運算放大器

立即訂購
產品規格表

OPA928

現行
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) 36 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.5 Vos (offset voltage at 25°C) (max) (mV) 0.025 Offset drift (typ) (µV/°C) 0.1 Input bias current (max) (pA) 0.02 GBW (typ) (MHz) 2.5 Features EMI Hardened Slew rate (typ) (V/µs) 7.5 Rail-to-rail In, Out Iq per channel (typ) (mA) 0.275 Vn at 1 kHz (typ) (nV√Hz) 15 CMRR (typ) (dB) 140 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.1 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) -3 Output swing headroom (to negative supply) (typ) (V) 0.05 Output swing headroom (to positive supply) (typ) (V) 0.05 THD + N at 1 kHz (typ) (%) 0.0012
Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.5 Vos (offset voltage at 25°C) (max) (mV) 0.025 Offset drift (typ) (µV/°C) 0.1 Input bias current (max) (pA) 0.02 GBW (typ) (MHz) 2.5 Features EMI Hardened Slew rate (typ) (V/µs) 7.5 Rail-to-rail In, Out Iq per channel (typ) (mA) 0.275 Vn at 1 kHz (typ) (nV√Hz) 15 CMRR (typ) (dB) 140 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.1 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) -3 Output swing headroom (to negative supply) (typ) (V) 0.05 Output swing headroom (to positive supply) (typ) (V) 0.05 THD + N at 1 kHz (typ) (%) 0.0012
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
  • Ultra-low input bias current:
    • 20fA (tested max) at 25ºC, VS = 16V
    • 20fA (tested max) at 85ºC, VS = 16V
    • 75fA (tested max) at 85ºC, VS = 36V
  • Ultra-low noise:
    • 0.07fA/√Hz at 0.1Hz
    • 15nV/√Hz at 1kHz
  • High dc precision:
    • ±5µV input offset voltage
    • ±0.1µV/°C offset voltage drift
  • Integrated high-precision guard buffer
  • Wide bandwidth: 2.5MHz GBW
  • Low quiescent current: 275µA
  • Wide supply: ±2.25V to ±18V (4.5V to 36V)
  • Rail-to-rail input and output
  • Operating temperature range: –40ºC to +125ºC
  • Industry-standard SOIC package with low leakage pin out
  • Ultra-low input bias current:
    • 20fA (tested max) at 25ºC, VS = 16V
    • 20fA (tested max) at 85ºC, VS = 16V
    • 75fA (tested max) at 85ºC, VS = 36V
  • Ultra-low noise:
    • 0.07fA/√Hz at 0.1Hz
    • 15nV/√Hz at 1kHz
  • High dc precision:
    • ±5µV input offset voltage
    • ±0.1µV/°C offset voltage drift
  • Integrated high-precision guard buffer
  • Wide bandwidth: 2.5MHz GBW
  • Low quiescent current: 275µA
  • Wide supply: ±2.25V to ±18V (4.5V to 36V)
  • Rail-to-rail input and output
  • Operating temperature range: –40ºC to +125ºC
  • Industry-standard SOIC package with low leakage pin out

The OPA928 is a new generation, 36V, femtoampere input bias, e-trim™ operational amplifier. This device offers an ultra-low input bias current of 20fA (max) across the entire industrial temperature range, −40ºC to +85ºC. The OPA928 input bias performance is tested at production at both temperatures.

The near-zero input bias is complemented by outstanding dc precision and ac performance, including rail-to-rail input and output, low offset voltage (±5µV, typical), low offset drift (±0.1µV/°C, typical), and ultra-low current noise (0.07fA/√Hz at 0.1Hz). These features make the OPA928 an excellent choice for low-light photodiode and high source-impedance applications.

The OPA928 features an internal, high precision guard buffer to protect high impedance input traces from undesirable current leakage in sensitive applications. The OPA928 packaging and pin out is designed to support low-leakage circuit designs.

The OPA928 is the next generation OPA128.

The OPA928 is a new generation, 36V, femtoampere input bias, e-trim™ operational amplifier. This device offers an ultra-low input bias current of 20fA (max) across the entire industrial temperature range, −40ºC to +85ºC. The OPA928 input bias performance is tested at production at both temperatures.

The near-zero input bias is complemented by outstanding dc precision and ac performance, including rail-to-rail input and output, low offset voltage (±5µV, typical), low offset drift (±0.1µV/°C, typical), and ultra-low current noise (0.07fA/√Hz at 0.1Hz). These features make the OPA928 an excellent choice for low-light photodiode and high source-impedance applications.

The OPA928 features an internal, high precision guard buffer to protect high impedance input traces from undesirable current leakage in sensitive applications. The OPA928 packaging and pin out is designed to support low-leakage circuit designs.

The OPA928 is the next generation OPA128.
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

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 4
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 OPA928 36V, Femtoampere Input Bias, Precision, Rail-to-Rail Input/Output, e‑trim™ Operational Amplifier datasheet (Rev. A) PDF | HTML 2024/4/26
應用說明 Measurement and Calibration Techniques for Ultra-low Current Measurement Systems PDF | HTML 2024/11/13
白皮書 Op Amp Offset Voltage and Bias Current Limitations PDF | HTML 2024/11/5
證書 OPA928EVM EU RoHS Declaration of Conformity (DoC) 2022/11/30

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
開發板

OPA928EVM — 適用高電壓飛安培輸入偏壓 e-trim™ 運算放大器的 OPA928 評估模組

OPA928 評估模組 (EVM) 提供可測試 OPA928 飛安培輸入偏壓電流運算放大器性能的平台。OPA928EVM 採用先進的防護和屏蔽技術，以確保飛安培級印刷電路板 (PCB) 佈局性能。具備高阻抗 (Hi-Z) 緩衝器和轉阻放大器 (TIA) 配置，以評估一般應用電路中的 OPA928。

使用指南: PDF | HTML
支援產品和硬體
有庫存
限制：
??asset.out-of-stock-ti_zh_TW??
無法提供
模擬型號

OPA928 PSpice Application Reference Design

SBOMCD9.ZIP (66 KB) - PSpice 模型
支援產品和硬體
模擬型號

OPA928 PSpice Model (Rev. A)

SBOMCC0A.ZIP (94 KB) - PSpice 模型
支援產品和硬體
模擬型號

OPA928 TINA-TI Application Reference Design

SBOMCE0.ZIP (48 KB) - TINA-TI 參考設計
支援產品和硬體
模擬型號

OPA928 TINA-TI Reference Design (Rev. A)

SBOMCC2A (261 KB) - TINA-TI 參考設計
支援產品和硬體
模擬型號

OPA928 TINA-TI Spice Model (Rev. A)

SBOMCC1A.ZIP (12 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
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOIC (D) 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