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AD536AJDZ

True RMS-to-DC converter, 0.2% accuracy, 2MHz bandwidth, ±3V to ±18V supply, 14-lead CERDIP package for precision measurement

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Manufacturer Part：

AD536AJDZ

Package：

14-lead CERDIP (J)

Brand：
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Description

Product Overview

The AD536AJDZ from Analog Devices is a monolithic integrated circuit that performs true RMS-to-DC conversion. It computes the true root-mean-square value of any complex input waveform (AC+DC) and provides a DC output voltage equal to the RMS value. Housed in a 14-lead CERDIP package, it offers wide input dynamic range and high accuracy for precision measurement applications.

Key Specifications

Function True RMS-to-DC Converter
Input Voltage Range 0 to 7V RMS (single supply)
Accuracy ±0.2% (DC or 1kHz sine)
Bandwidth 2MHz (Vrms > 1V)
Supply Voltage ±3V to ±18V
Supply Current 1.2mA (typical)
Operating Temperature -25°C to +85°C
Package 14-lead CERDIP (J)

Features

  • True RMS computation for any complex waveform
  • 0.2% maximum error at DC and 1kHz sine wave
  • Crest factor capability up to 7:1
  • Built-in output buffer amplifier
  • dB output option with 0V = 0dB reference
  • Wide dynamic range: 0 to 7V RMS input
  • Single or dual supply operation

Applications

  • Digital multimeters and panel meters
  • Audio level measurement
  • Power monitoring and analysis
  • Vibration and noise measurement systems
  • Process control instrumentation

The AD536AJDZ is a monolithic true RMS-to-DC converter from Analog Devices that computes the true root-mean-square value of any complex electrical signal. Unlike average-responding converters that are calibrated only for pure sine waves, the AD536A computes the true RMS value regardless of waveform shape, including distorted sine waves, noise signals, and pulse trains. The device features a crest factor capability of 7:1, allowing accurate measurement of high-crest-factor signals found in SCR-controlled power systems and audio applications. The built-in output buffer amplifier and dB output option make it particularly suitable for instrumentation and measurement systems.

The AD536A computes the true RMS value using an implicit computation method based on the equation: Vrms = Avg(Vin²/Vrms). The input signal first passes through an absolute value circuit, then enters a squarer/divider circuit that computes Vin²/Vrms. This squared-normalized signal is averaged by an internal filter (or external capacitor for custom time constants), and the result feeds back to the divider. The feedback loop converges when the average of Vin²/Vrms equals Vrms, which by definition is the RMS value. The output buffer amplifier provides the final DC voltage equal to the RMS of the input. The dB output circuit provides a logarithmic representation referenced to an external resistor-set threshold.

Pin Name Description
1 BUF IN Buffer amplifier input
2 BUF OUT Buffer amplifier output (RMS output)
3 dB OUTPUT Logarithmic (dB) output; 0V = 0dB reference
4 dR dB dB output offset adjust; connect external resistor to set 0dB reference
5 COM Common (ground) terminal
6 CHE External averaging capacitor connection
7 RIN Input scaling resistor; sets input range
8 VIN Signal input terminal
9 +VS Positive supply voltage (+3V to +18V)
10 -VS Negative supply voltage (-3V to -18V)
11 NC No connection
12 NC No connection
13 NC No connection
14 NC No connection
  • Digital Multimeters: Converts AC voltage and current measurements to DC for display; handles non-sinusoidal waveforms accurately
  • Audio Level Measurement: Provides true RMS reading of audio signals for VU meters and SPL measurement
  • Power Monitoring: Measures true power in SCR-controlled and variable-frequency drive systems with non-sinusoidal waveforms
  • Vibration Analysis: Converts vibration sensor AC output to DC RMS value for condition monitoring systems
Model Manufacturer Accuracy Bandwidth Package
AD536AJHZ Analog Devices ±0.2% 2MHz 20-lead LCC
AD637JRZ Analog Devices ±0.2% 8MHz SOIC-16
AD736JRZ Analog Devices ±0.3% 190kHz SOIC-8
LTC1966CMS8 Analog Devices ±0.1% 800kHz MSOP-8
AD536ASDZ Analog Devices ±0.2% 2MHz 14-lead CERDIP
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Quality Assurance

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:
  • Automotive Electronics: All automotive-grade components pass AEC-Q series certification, featuring excellent stability and durability to adapt to complex vehicle operating environments.
  • Medical Devices: High-reliability components meet medical industry safety and compliance regulations, ensuring stable operation for medical equipment.
  • 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.

6. After-sales Quality Guarantee

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.

Contact Us

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

 

Shipping & Payment

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:
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  • T/T (Bank Wire Transfer): The primary settlement method for bulk orders and a widely used international payment channel.
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  1. Settlement Currency

     

    US Dollar (USD) is the default settlement currency. RMB is available for domestic customers.

  2. Bank Charges

     

    All transfer fees, intermediary bank charges and other remittance-related expenses shall be borne by the buyer.

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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
  • Domestic Delivery: SF Express, Yunda Express
  1. Order Processing Time
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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
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  • 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

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    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.

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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

Service & Packaging

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

1. One-stop Sourcing & BOM Support

We specialize in a full range of passive and active electronic components, including SMD resistors, power resistors, connectors, aviation connectors, LED beads, flexible circuit boards, printed circuit boards, and integrated circuits. Our professional team provides BOM list consolidation, component matching, and alternative model recommendation services. We support sample orders, small-batch trial production, and mass production orders with flexible MOQs to meet diverse procurement needs.

2. Genuine Product Guarantee & Full-process Quality Inspection

All products are sourced from official authorized channels and are 100% original genuine parts. Every batch of goods undergoes strict full-process quality inspection before delivery, with complete batch records and traceability documents provided. Our products comply with AEC-Q standards for automotive electronics and high-reliability specifications for medical devices. We eliminate counterfeits, refurbished parts and defective products from the source to secure your project production.

3. Fast Quotation & Order Processing

Our customer service team responds promptly to inquiries and quotation requests. All in-stock orders will be processed within one working day. We provide stocking reservation services for long-term cooperative customers, effectively solving problems such as component shortages and unstable supply chains.

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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2. Classified Professional Packaging

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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.
  • Discrete Device Packaging: Discrete devices such as SMD resistors, power resistors and LEDs are quantitatively and classifiedly packaged with accurate quantity and clear marking.
  • 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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