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AD202KN
AD202KN
| Part Number | AD202KN |
|---|---|
| Manufacturer | Analog Devices Inc. (ADI) |
| Category | Integrated Circuits (ICs) > Linear – Amplifiers – Special Purpose / Isolation Amplifiers |
| Description | High-accuracy, low-cost, multi-channel-capable Isolation Amplifier with integrated isolated power supply, offering 1500V rms continuous galvanic isolation and excellent linearity. |
| Stock Status | In Stock |
| Origin | Original Factory |
Product Overview
The AD202KN from Analog Devices is a low-cost, transformer-coupled isolation amplifier ideal for industrial automation, data acquisition, and medical instrumentation. It provides up to 1500V RMS continuous galvanic isolation between input and output, eliminating ground loops and common-mode noise while protecting sensitive circuitry. Its integrated isolated power converter generates ±15V auxiliary outputs to power external conditioning circuits, reducing BOM count. Packaged in a SIP housing, it offers high precision with ±0.025% nonlinearity, making it suitable for high-accuracy monitoring and control applications.
Core Advantages
Superior 2000V Peak Galvanic Isolation
Provides robust hardware protection against dangerous ground loops and cross-talk interference by continuously isolating input and output signal paths at potentials up to 2000V peak (1500V RMS equivalent).
Integrated Isolated DC-DC Supply Source
Features an autonomous embedded power converter that delivers isolated ±15V auxiliary power outputs, removing the requirement for a separate isolated power rail and reducing design complexity.
Ultra-Low Signal Distortion Matrix
Maintains an exceptional nonlinearity rating of just ±0.025%, guaranteeing optimal signal translation fidelity for low-amplitude sensor inputs without accuracy loss.
High Common-Mode Rejection (CMR)
Exhibits an outstanding 130dB common-mode rejection capability at 60Hz, effectively filtering out powerline hum, electrical switching spikes, and noisy factory environmental disturbances.
Key Specifications
| Brand | Analog Devices Inc. (ADI) |
|---|---|
| RoHS Status | RoHS Compliant Standard Options Available |
| EDA/CAD Model | 3D Model & PCB Footprint Available upon request |
| Warranty | 1-Year Standard Factory Warranty |
| Package / Case | PDIP-10 |
| Mounting Type | Through-Hole Technology (THT) |
| Surface Marking / Silkscreen | AD202KN Marking |
| Amplifier Architecture | Transformer-Coupled Isolation Amplifier Module |
| Continuous Isolation Rating | ±2000 V Peak Continuous (Input-to-Output Galvanic Isolation) |
| Nonlinearity Rating | ±0.025% Maximum at Full-Scale Output Range |
| Small Signal Bandwidth | 2 kHz Frequency Response Tier |
| Common-Mode Rejection (CMR) | 130 dB minimum at 60 Hz (Input to Output Window) |
| Isolated Auxiliary Power Output | Dual ±15 V DC output terminals at ±5 mA load drive capabilities |
| Gain Configuration Range | 1 V/V to 100 V/V Adjustable via external resistor selection |
| Main System Supply Rail | +15 V DC ±10% Single-Supply Primary Drive (13.5V to 16.5V) |
| Operating Temperature Range | -40°C to +85°C (Industrial Operational Grade Specification) |
Typical Applications
- Multichannel Industrial Data Acquisition Systems (DAQ) and Remote Sensor Interface Links
- High-Voltage Shunt Current Metering, Motor Drive Monitors, and Power Grid Telemetry
- Biomedical Instrumentation Processing Interfaces (Patient Monitors, EEG/ECG Front-Ends)
- Process Automation Feedback Control Networks and Distributed Control System (DCS) Input Nodes
- Ground-Loop Elimination for Sensitive Laboratory Equipment and High-Precision Test Racks
Order & Shipping Info
| Minimum Order Quantity (MOQ) | 1 Piece |
|---|---|
| Shipping Time | Shipped within 1-2 business days |
| Delivery Time | 3-7 working days worldwide |
| Shipping Methods | DHL, UPS, FedEx, EMS |
| Payment Methods | T/T (Bank Transfer), PayPal, Credit Card, Western Union |
Technical Support
For datasheet, sample requests, stock check, or bulk pricing, please use the Quick Inquiry form. We will reply within 24 hours.
Frequently Asked Questions
Q1: Is your current inventory of the AD202KN completely genuine and original?
A: Yes, we guarantee that all AD202KN isolation amplifiers in our stock are 100% brand-new, original factory components from Analog Devices Inc., handled and stored under strict anti-static ESD shielding guidelines.
Q2: What is the primary difference between the “KN” model and the standard “JN” series variant?
A: The “KN” designator indicates a higher precision tier. The AD202KN provides a significantly lower maximum nonlinearity specification (±0.025%) and lower input offset drift characteristics compared to the lower-cost AD202JN variant (±0.05%).
Q3: Can the on-board isolated ±15V output terminals be utilized to drive external active circuitry?
A: Yes, the integrated transformer provides uncommitted isolated auxiliary outputs rated for up to ±5mA continuous current. These outputs are ideal for powering input signal conditioning operational amplifiers or reference circuits directly at the isolated input side.
Q4: How can our technical group request complete layout schematics, Spice macro-models, or a volume wholesale quotation?
A: Please complete our Quick Inquiry web form on this page with details about your processing parameters. Our application support desk will process your inquiry and dispatch the available technical documentation package within 24 hours.
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