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Product Overview
The INA2143U from Texas Instruments is a high-performance, dual-channel differential amplifier designed for precision current sensing and voltage measurement in industrial and automotive applications. Housed in a compact 14-SOIC package, it offers excellent common-mode rejection and wide supply voltage range, making it ideal for demanding environments.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (V+ to V-) |
±2.25V to ±18V (4.5V to 36V single supply) |
| Common-Mode Input Range |
±36V (with ±15V supplies) |
| Bandwidth |
1 MHz |
| Slew Rate |
0.4 V/µs |
| Input Offset Voltage |
±200 µV (max) |
| Input Bias Current |
±10 nA (max) |
| Common-Mode Rejection Ratio (CMRR) |
90 dB (min) |
| Output Voltage Swing |
Rail-to-rail |
| Operating Temperature |
-40°C to +125°C |
| Package |
14-SOIC |
Key Features
- Dual-channel differential amplifier with high accuracy
- Wide common-mode voltage range up to ±36V
- Low offset voltage and drift for precision measurements
- Rail-to-rail output swing maximizes dynamic range
- High CMRR rejects common-mode noise
- Wide supply range supports various system voltages
- Industry-standard 14-SOIC package for easy integration
Target Applications
- Current sensing in 5G base station power supplies
- Battery monitoring in electric vehicle (EV) battery management systems
- Motor control in industrial automation (e.g., servo drives)
- Precision instrumentation for test and measurement equipment
- Automotive dashboard displays and sensor interfaces
- Solar inverter current monitoring
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
INA2143U. Our core advantages include:
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24/7 Global Customer Support: Professional team providing instant
quotes and technical support worldwide.
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In-stock Inventory, Same-day Shipping: We maintain localized stock;
orders confirmed before 4 PM are shipped the same day.
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HK-SZ Synergy, Flexible Settlement: Direct global shipping from
Shenzhen with support for HK bank transfers and multi-currency.
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Escrow Secured Transactions: We support Escrow.com for secure
transactions, ensuring peace of mind for batch orders.
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BOM Kitting & Sampling Services: Specialized sourcing for
testing samples and urgent shortage components.
Quality Assurance & Compliance
Jasin Chip guarantees that all delivered products are 100% original factory stock
with full quality assurance and traceability.
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100% Original & Authentic: All components are guaranteed to
be authentic with strict quality control.
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RoHS Compliant: All electronic components comply with international
environmental and safety standards.
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Original Factory Packaging: We maintain original factory packaging
and seals to ensure ESD protection and physical integrity.
產品概述
INA2143U 是德州儀器 (TI) 推出的一款高性能雙通道差分放大器,專為工業和汽車應用中的精密電流檢測和電壓測量而設計。採用緊湊的 14-SOIC 封裝,具有出色的共模抑制能力和寬電源電壓範圍,非常適合惡劣環境。
詳細技術參數
| 參數 |
數值 |
| 電源電壓 (V+ 至 V-) |
±2.25V 至 ±18V (單電源 4.5V 至 36V) |
| 共模輸入範圍 |
±36V (使用 ±15V 電源時) |
| 帶寬 |
1 MHz |
| 壓擺率 |
0.4 V/µs |
| 輸入失調電壓 |
±200 µV (最大值) |
| 輸入偏置電流 |
±10 nA (最大值) |
| 共模抑制比 (CMRR) |
90 dB (最小值) |
| 輸出電壓擺幅 |
軌到軌 |
| 工作溫度 |
-40°C 至 +125°C |
| 封裝 |
14-SOIC |
核心特性
- 雙通道差分放大器,精度高
- 寬共模電壓範圍,高達 ±36V
- 低失調電壓和漂移,實現精密測量
- 軌到軌輸出擺幅,最大化動態範圍
- 高 CMRR 抑制共模噪聲
- 寬電源範圍,支持多種系統電壓
- 行業標準 14-SOIC 封裝,易於集成
典型應用場景
- 5G 基站電源中的電流檢測
- 電動汽車 (EV) 電池管理系統中的電池監控
- 工業自動化中的電機控制 (例如伺服驅動器)
- 測試和測量設備中的精密儀器
- 汽車儀表板顯示和傳感器接口
- 太陽能逆變器電流監控
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 INA2143U 提供全面的供應鏈與批發解決方案。
我們的核心優勢包括:
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