Share to:
AD698APZ
AD698APZ
| Part Number | AD698APZ |
|---|---|
| Manufacturer | Analog Devices (ADI) |
| Category | Integrated Circuits (ICs) > Interface – Sensor and Detector Interfaces |
| Description | Complete, monolithic Linear Variable Differential Transformer (LVDT) signal conditioner IC,PLCC-28(11.5×11.5mm) Package |
Product Overview
The AD698APZ is a complete, monolithic Linear Variable Differential Transformer (LVDT) signal conditioner manufactured by Analog Devices. This highly specialized subsystem converts raw mechanical displacement signals from LVDTs and RVDTs into precise, low-noise DC voltage outputs with exceptional accuracy. By integrating an internal low-distortion sine wave oscillator, a power amplifier, synchronous demodulators, and filtering circuitry on a single chip, the drastically minimizes component counts and eliminates the complex calibration routines typically associated with discrete circuit designs. Its advanced ratiometric decoding architecture ensures that variations in core component tolerances or temperature-induced excitation changes do not compromise the overall measurement system integrity.
Core Advantages
Complete Monolithic LVDT Subsystem
The device consolidates all essential signal conditioning functions—including excitation generation, synchronous demodulation, and error amplification—into a single package. This self-contained layout reduces overall circuit footprint, eliminates parasitic noise, and shortens design cycles.
Ratiometric Architecture for Enhanced Stability
By executing an advanced mathematical division of the primary output against the secondary input signals, the AD698APZ dynamically compensates for temperature drifts, excitation voltage fluctuations, and variations in cable resistance, ensuring robust long-term measurement consistency.
Wide Frequency and Voltage Range Flexibility
Engineered with adjustable internal oscillator and filter networks, the IC can handle driving frequencies ranging from 20 Hz up to 20 kHz. This wide range enables effortless compatibility with an expansive spectrum of industrial position sensors.
Outstanding Technical Precision
Featuring extremely low non-linearity and drift characteristics, the AD698APZ is capable of capturing micrometer-level structural movements accurately, making it the ideal choice for mission-critical aerospace, military, and precision manufacturing equipment.
Key Specifications
| Brand | Analog Devices (ADI) |
|---|---|
| RoHS Status | RoHS Compliant / Lead-Free |
| EDA/CAD Model | 3D Model & PCB Footprint Available upon request |
| Warranty | 1-Year Standard Factory Warranty |
| Package / Case | PLCC-28(11.5×11.5mm) |
| Mounting Type | Surface Mount (SMD/SMT) or Socket Mount |
| Surface Marking / Silkscreen | AD698APZ Marking |
| Sensor Interfaces | LVDT, RVDT, Half-Bridge Transducers |
| Excitation Frequency Range | 20 Hz to 20 kHz |
| Non-Linearity | ±0.05% of Full Scale (Maximum) |
| Supply Voltage Range | Single Supply: 13V to 36V (or ±13V to ±18V dual) |
| Operating Temperature Range | -40°C to +85°C (Industrial Grade) |
Typical Applications
- Aerospace Fly-by-Wire Flight Control Surface Transducers
- Industrial Turbine Valve Position Monitoring and Hydraulic Actuators
- Precision Closed-Loop Machine Tool Calibration Systems
- Automotive Suspension and Electronic Steering Testing Equipment
- Subsea Oil & Gas Pipeline Safety Valve Feedback Loops
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 the AD698APZ inventory you supply 100% genuine original?
A: Yes, we provide absolutely original, factory-authenticated Analog Devices parts. Every batch comes with full quality insurance and traceability documentation.
Q2: What is the primary operational difference between the AD698 and the AD598?
A: The AD598 utilizes a specific transfer function method where the primary subtraction is done over sum, whereas the AD698 uses synchronous demodulation techniques to decode separate multi-winding configurations independently, expanding sensor flexibility.
Q3: Does the AD698APZ require external passive components to set the frequency?
A: Yes, you can easily configure the exact sine wave excitation frequency and the output low-pass filter thresholds by choosing standard external capacitors as designated in the layout guidelines.
Q4: How can I obtain application notes regarding high-reliability PCB layouts and noise filtering?
A: Please enter your technical requests via our Quick Inquiry web form. Our support engineering specialists will respond with the full reference manuals within 24 hours.
Related Products
