Overview
The AD698AP, produced by Analog Devices Inc., is a universal Linear Variable Differential Transformer (LVDT) signal conditioner. This integrated circuit (IC) is designed to convert LVDT sensor signals into a conditioned voltage output, offering high accuracy, low noise, and a wide operating temperature range. The AD698AP is a complete, monolithic signal conditioning subsystem that includes all active circuits on the chip, requiring only a few external passive components to complete the conversion from mechanical position to DC voltage.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Temperature | -40°C to +85°C | °C |
| Output Voltage Range | ±11 V | V |
| Output Current | 11 mA (max) | mA |
| Short Circuit Current | 20 mA (max) | mA |
| Nonlinearity | 75 ppm of FS (max) | ppm |
| Gain Error | 0.1% to 1.0% of FS | % |
| Gain Drift | 20 ppm/°C of FS | ppm/°C |
| Offset Drift | 5 ppm/°C of FS | ppm/°C |
| Supply Current | 15 mA | mA |
| Package Type | 28-Pin PLCC |
Key Features
- High-accuracy LVDT signal conditioner
- Low-noise and high-rejection filtering
- Wide operating temperature range (-40°C to +85°C)
- Surface-mount package (28-LCC, J-Lead) for easy mounting
- Input type: Voltage
- Output type: Voltage
- No adjustments necessary; improved temperature stability and transducer interchangeability
- Programmable gain amplifier and digital compensation techniques for excellent performance
- On-chip temperature sensor and voltage regulator
Applications
- Industrial process control systems
- Medical device monitoring equipment
- Automotive sensors and systems
- Other industrial control applications such as robotics and vibration analysis
- Data acquisition and precision measurement systems
Q & A
- Q: What is the AD698AP used for?
A: The AD698AP is used to convert LVDT sensor signals into a conditioned voltage output, making it suitable for various applications such as industrial control systems, medical equipment, and automotive sensors.
- Q: What are the key benefits of the AD698AP?
A: The key benefits include high accuracy, low noise, wide operating temperature range, no adjustments necessary, improved temperature stability, and enhanced transducer interchangeability.
- Q: What types of LVDTs can the AD698AP work with?
A: The AD698AP can work with various types of LVDTs, including half-bridge and series opposed (4-wire) configurations, as well as RVDTs.
- Q: How is the excitation frequency set for the AD698AP?
A: The excitation frequency is determined by a single external capacitor, allowing a range of 20 Hz to 20 kHz.
- Q: What is the operating temperature range of the AD698AP?
A: The operating temperature range is -40°C to +85°C.
- Q: What is the output voltage range of the AD698AP?
A: The output voltage range is ±11 V.
- Q: Does the AD698AP require any adjustments?
A: No, the AD698AP does not require any adjustments, which improves its ease of use and reliability.
- Q: What kind of package does the AD698AP come in?
A: The AD698AP comes in a 28-Pin PLCC (Plastic Leaded Chip Carrier) package.
- Q: What is the warranty period for the AD698AP?
A: Ovaga Technologies offers a 1-year warranty on the AD698AP, covering any defects in materials and workmanship under normal use.
- Q: How does Ovaga ensure the authenticity of the AD698AP?
A: Ovaga ensures authenticity by rigorously testing and verifying the credentials of original Analog Devices Inc. manufacturers and authorized agents.
