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ISO124U

Isolation Amplifier, 1500Vrms, 0.01% NL, 50kHz, DIP-24

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制造商零件：

ISO124U

包装：

DIP-24 (0.600 inch / 15.24mm width)

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说明

产品概览

The ISO124U from Texas Instruments is a precision isolation amplifier with 1500Vrms continuous isolation, 0.01% nonlinearity, and 50kHz bandwidth in a DIP-24 package.

主要规格

类型 Precision Isolation Amplifier
隔离电压 1500 Vrms (continuous)
Gain 1 V/V (fixed)
Gain Accuracy +/-0.5% (max)
Nonlinearity +/-0.01% (max)
Bandwidth 50 kHz
Isolation Rejection 140 dB @ 60 Hz
电源电压 +/-4.5V to +/-18V (each side)
Isolation Capacitance 2.2 pF (typical)
包装 DIP-24 (0.600 inch width)
工作温度 -25C to +85C

特点

  • 1500Vrms continuous isolation rating
  • Fixed unity gain with 0.5% accuracy
  • 0.01% maximum nonlinearity
  • 50kHz signal bandwidth
  • 140dB isolation rejection at 60Hz
  • Dual independent supply rails (+/-4.5V to +/-18V)
  • 2.2pF isolation capacitance

应用

  • Medical ECG/EEG isolation
  • Industrial process control isolation
  • Motor current sensing isolation
    • Data acquisition front-end isolation

The ISO124U from Texas Instruments (originally Burr-Brown) is a precision isolation amplifier that provides galvanic isolation between input and output with 1500Vrms continuous rating. The device achieves 0.01% maximum nonlinearity through a duty-cycle modulation-demodulation scheme, where the input voltage is converted to a pulse-width modulated signal, transmitted across the isolation barrier via an internal transformer, and demodulated on the output side. The fixed unity gain (1 V/V) with 0.5% accuracy simplifies the signal path without external gain-setting components. The 50 kHz bandwidth supports most industrial and medical sensing applications. The 140 dB isolation rejection at 60 Hz eliminates power-line interference in sensitive measurements. The DIP-24 package provides wide creepage and clearance distances for high-voltage isolation. The dual independent supply rails allow the input and output sides to be powered from different sources.

The ISO124U uses a duty-cycle modulation technique to transmit analog signals across the isolation barrier. On the input side, the input voltage is compared against a 500 kHz triangular wave in a PWM modulator, producing a pulse-width modulated digital signal whose duty cycle is proportional to the input voltage. This digital signal is transmitted through an internal planar transformer that provides the galvanic isolation barrier. On the output side, a demodulator reconstructs the analog signal by filtering the PWM signal with a 2nd-order low-pass filter. The 50 kHz bandwidth is determined by the output filter cutoff frequency. The 0.01% nonlinearity is achieved because the PWM modulation is inherently linear – the duty cycle is directly proportional to the input voltage with high precision. The isolation characteristics are determined by the transformer: 1500Vrms continuous rating, 2.2pF coupling capacitance, and 140dB isolation rejection at 60 Hz. The transformer’s high magnetizing inductance and low inter-winding capacitance ensure signal integrity while maintaining safety isolation.

针脚 名称 类型 功能
1 VIN+ 输入 Non-inverting signal input
2 VIN- 输入 Inverting signal input
3 V+IN 电源 Input side positive supply
4 V-IN 电源 Input side negative supply
5 COM IN 电源 Input side common (ground)
6,7 北卡罗来纳州 - 无连接
8 OSC 输出 Internal oscillator output (decouple)
9 COM OUT 电源 Output side common (ground)
10 V-OUT 电源 Output side negative supply
11 V+OUT 电源 Output side positive supply
12 VOUT 输出 Isolated output voltage
  • Medical ECG front-end with 1500Vrms patient isolation and 0.01% linearity
  • Industrial 4-20mA current loop receiver with 140dB 60Hz rejection
  • Motor phase current sensing with high-side shunt and isolated output
  • Data acquisition system channel-to-channel isolation with 50kHz bandwidth
制造商 部件编号 包装 说明
TI ISO124P DIP-24 Wider temperature range version
TI AMC1301DWVR SOIC-8 Isolated current-sense amplifier, newer
ADI AD202JN DIP-24 Isolation amplifier, alternative
TI ISO224 SOIC-16 Isolated amplifier, newer, smaller
硅实验室 Si8920B-IS SOIC-8 Isolated current sense, digital output
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质量保证

Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

1. Authorized & Genuine Sourcing Promise

All of our electronic components are procured from official authorized distributors and original manufacturers. We strictly reject counterfeits, refurbished parts, disassembled components and gray-market goods. Every product is guaranteed to be brand-new original parts and fully consistent with the original technical parameters. For branded products such as NXP IC series, we maintain complete supply channel documents to realize full product traceability.

2. Strict Full-batch Quality Inspection

We implement 100% full-batch quality control for all goods before shipment. Our professional QC team conducts multi-dimensional tests including appearance inspection, electrical parameter testing, performance verification and packaging check. Each batch of components is attached with complete inspection reports and batch records. We stick to zero-tolerance standards for defective products to ensure every piece of component meets industrial application requirements.

3. Industry Standard Compliance

Our products comply with a variety of international industry quality standards to adapt to high-standard application scenarios:
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  • Industrial Control & Consumer Electronics: Products conform to universal international electronic industry standards, suitable for long-term continuous operation of various equipment.

4. Professional Reliability Control

For static-sensitive, moisture-sensitive and precision components such as ICs, PCBs, sensors and connectors, we carry out reliability screening in advance. Combined with standardized ESD anti-static packaging and vacuum moisture-proof packaging, we avoid component damage caused by static electricity, dampness or collision during storage and transportation, and retain the original performance of products.

5. Traceability Management System

We establish a complete product traceability system. Each batch of goods corresponds to independent batch number, sourcing record, inspection record and delivery record. Customers can query the whole lifecycle information of components at any time. This system effectively solves quality risks and facilitates after-sales handling and production quality control for your company.

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If any product is confirmed to have non-conformity quality problems due to our reasons after receipt, we provide free return, exchange and supplementary delivery services. Our professional quality team will also conduct root cause analysis to optimize our quality control process. We respond to quality feedback within 24 hours to resolve your worries efficiently.

联系我们

If you have inquiries about our quality standards, inspection procedures or product certification documents, please feel free to contact us:

 

Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China

 

发货与付款

Materialparts is a professional global supplier of electronic components with over 20 years of industry experience. We provide one-stop supply of passive components, integrated circuits, as well as parts for industrial control, automotive electronics, consumer electronics and medical devices. Below are the unified shipping and payment policies applicable to all orders, samples and bulk purchases worldwide.

1. Payment Terms

We offer a variety of secure and convenient payment methods to meet diverse business cooperation needs. Details are as follows:
  1. Accepted Payment Methods
  • T/T (Bank Wire Transfer): The primary settlement method for bulk orders and a widely used international payment channel.
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    US Dollar (USD) is the default settlement currency. RMB is available for domestic customers.

  2. Bank Charges

     

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  3. Payment Requirements
  • Sample and small orders: Shipment will be arranged upon full payment.
  • In-stock bulk orders: Goods will be delivered within 2 to 3 working days after full payment.

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We partner with leading global logistics providers to ensure safe and fast delivery worldwide. Relevant details are listed below:
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  • Economy Logistics: Air freight and sea freight for large-volume cargo
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  • Out-of-stock or sourced items: The delivery lead time will be confirmed separately according to brand and inventory status.
  1. Estimated Transit Time
  • International Express: 3 – 7 working days globally
  • Air Freight: 7 – 12 working days
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    Within 24 hours after dispatch, we will send the tracking number, commercial invoice, packing list and other documents to your email or communication account. You may check the shipment status online in real time.

3. General Order Rules & Notes

  1. MOQ & Sample Service

     

    We support flexible minimum order quantities for samples, small-batch and large-batch orders. All sample orders shall comply with the above shipping and payment policies.

  2. Packaging Standard

     

    All electronic components are packed with professional anti-static and shockproof materials. Original factory packaging is available for branded chips and integrated circuits.

4. Customs & Liability Statement

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    All import duties, customs clearance fees and local taxes incurred for international shipments shall be borne by the buyer. We will provide complete customs documents to assist you with clearance procedures.

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5. Local Pickup in Shenzhen

Local pickup service is available for customers in Shenzhen and surrounding areas:
  • Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong Province, China
  • Business Hours: 09:00 – 18:00, Monday to Friday. Closed on weekends and official public holidays.
  • Notice: Please make an appointment via email or communication tools one day in advance, and present your order information upon pickup.

Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

服务与包装

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

Core Services

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2. Genuine Product Guarantee & Full-process Quality Inspection

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3. Fast Quotation & Order Processing

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4. Professional Technical Support

Our senior engineer team provides free technical consultation, model selection guidance and original manufacturer datasheets. We assist customers in solving problems related to product R&D, circuit design and component application, providing reliable technical support for project progress.

5. Sourcing for Special Components

Relying on our global supply chain network, we professionally source scarce components, obsolete parts and customized special components to efficiently solve your procurement difficulties.

6. Global Logistics & Document Services

We cooperate with mainstream international logistics providers including DHL, FedEx, UPS and TNT to achieve fast global delivery. We can provide complete export documents such as customs declaration files, commercial invoices and packing lists to ensure smooth customs clearance for international shipments. Local pickup is also available for customers in Shenzhen, China.

Professional Packaging Standards

Electronic components are sensitive to static electricity, collision, moisture and dust. We adopt industry-standard anti-static packaging solutions to fully ensure the integrity of goods during transportation and storage.

1. General Packaging Specifications

  • All components are packed separately to avoid damage caused by friction and collision;
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  • Original Factory Packaging: Integrated circuits of brands such as NXP are delivered with original reels, trays or tubes by default, retaining complete original packaging and adapting to automated SMT production lines.
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  • Connector / Aviation Connector Packaging: Hard outer packaging is adopted to prevent pin bending and structural deformation.

3. Custom Packaging Services

We provide value-added services including personalized packaging, custom labeling and re-reeling according to customer requirements, fully matching your production and warehouse management standards.

Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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