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Product Overview
The LF253DT is a high-performance dual operational amplifier from STMicroelectronics, featuring JFET inputs for low input bias current and high input impedance. Housed in an 8-SOIC package, it offers a wide bandwidth of 3 MHz and a slew rate of 16 V/µs, making it suitable for a variety of analog signal conditioning applications. The device operates from a single or dual supply voltage ranging from ±5 V to ±18 V, providing design flexibility.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage Range |
±5 V to ±18 V (or 10 V to 36 V single supply) |
| Input Offset Voltage |
3 mV (max) |
| Input Bias Current |
50 pA (typ) |
| Gain Bandwidth Product |
3 MHz (typ) |
| Slew Rate |
16 V/µs (typ) |
| Input Voltage Noise |
15 nV/√Hz (at 1 kHz) |
| Common Mode Rejection Ratio |
80 dB (typ) |
| Supply Current (per amplifier) |
2.5 mA (typ) |
| Operating Temperature Range |
-40°C to +105°C |
| Package |
8-SOIC |
Key Features
- JFET input stage for low input bias current (50 pA typical)
- High input impedance (10^12 Ω)
- Wide gain bandwidth product (3 MHz)
- High slew rate (16 V/µs) for fast signal processing
- Low total harmonic distortion (0.01% typical)
- Output short-circuit protection
- Internal frequency compensation
- Latch-up free operation
Target Applications
- Active filters in 5G base station power management modules
- Signal conditioning for automotive dashboard sensors (e.g., temperature, pressure)
- Audio preamplifiers in professional mixing consoles
- Data acquisition systems for industrial automation
- Precision integrators and differentiators in test equipment
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
LF253DT. 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
LF253DT 是意法半導體(STMicroelectronics)推出的一款高性能雙運算放大器,採用 JFET 輸入級,具有低輸入偏置電流和高輸入阻抗。該器件採用 8-SOIC 封裝,提供 3 MHz 的帶寬和 16 V/µs 的壓擺率,適用於多種模擬信號調理應用。工作電壓範圍為 ±5 V 至 ±18 V(或單電源 10 V 至 36 V),設計靈活。
詳細技術參數
| 參數 |
數值 |
| 電源電壓範圍 |
±5 V 至 ±18 V(或單電源 10 V 至 36 V) |
| 輸入失調電壓 |
3 mV(最大值) |
| 輸入偏置電流 |
50 pA(典型值) |
| 增益帶寬積 |
3 MHz(典型值) |
| 壓擺率 |
16 V/µs(典型值) |
| 輸入電壓噪聲 |
15 nV/√Hz(1 kHz 時) |
| 共模抑制比 |
80 dB(典型值) |
| 每通道靜態電流 |
2.5 mA(典型值) |
| 工作溫度範圍 |
-40°C 至 +105°C |
| 封裝 |
8-SOIC |
核心特性
- JFET 輸入級,輸入偏置電流低(典型值 50 pA)
- 高輸入阻抗(10^12 Ω)
- 寬增益帶寬積(3 MHz)
- 高壓擺率(16 V/µs),適合快速信號處理
- 低總諧波失真(典型值 0.01%)
- 輸出短路保護
- 內部頻率補償
- 無閂鎖效應
典型應用場景
- 5G 基站電源管理模塊中的有源濾波器
- 汽車儀表板傳感器(如溫度、壓力)的信號調理
- 專業調音台的音頻前置放大器
- 工業自動化的數據採集系統
- 測試設備中的精密積分器和微分器
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 LF253DT 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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全天候環球客戶支援:專業團隊為您提供即時報價及技術支援,無需漫長等待。
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現貨庫存,即日發貨:確保現貨充足。下午 4 點前確認訂單,即可安排當天寄出。
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深港聯動,結算靈活:深圳直發全球,物流高效可靠;支援香港銀行戶口轉賬及多幣種結算。
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Escrow 擔保交易:支援 Escrow.com 平台交易,保障買賣雙方權益,小批量訂單亦可安心在線下單。
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BOM 配單與樣板服務:提供樣板測試及認證支援。專注一站式 BOM 配套及緊急缺料採購服務。
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Jasin Chip 承諾所有出貨產品均為原廠正貨,具備完善的品質保證及產品可追溯性。
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原廠封裝保護:嚴格保留原廠原始包裝及封條,確保物流過程中的靜電防護 (ESD) 與物理安全。
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