Overview
The AD2S83APZ-REEL, produced by Analog Devices Inc., is a variable resolution, resolver-to-digital converter designed for high accuracy and reliability in angular measurement applications. This converter is particularly useful in servo systems, providing precise analog velocity signals and digital position outputs. It replaces the need for mechanical tachogenerators, enhancing system stability and control. The AD2S83 series is known for its robustness, precision, and flexibility, making it suitable for a wide range of industrial and automotive applications.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| Resolution | 10, 12, 14, 16 bits | |
| Signal Input Frequency (SIN, COS) | 0 - 20,000 Hz | |
| Signal Input Voltage (SIN, COS) | 1.8 - 2.2 V rms | |
| Reference Input Frequency (REF) | 0 - 20,000 Hz | |
| Reference Input Voltage (REF) | 1.0 - 8.0 V pk | |
| Input Impedance (SIN, COS, REF) | 1.0 MΩ | |
| Velocity Signal Linearity | ±0.15% to ±1.0% FSR | |
| Reversion Error | ±0.5% to ±1.5% O/P | |
| DC Zero Offset | ±3 mV | |
| Gain Scaling Accuracy | ±1.5% to ±3% FSR | |
| Output Voltage (1 mA Load) | ±8 V |
Key Features
- High Accuracy Velocity Output: Provides a precision analog velocity signal with typical linearity of ±0.1% and reversion error less than ±0.3%, eliminating the need for mechanical tachogenerators.
- User-Selectable Resolution: Allows the resolution to be set to 10, 12, 14, or 16 bits using two control pins.
- Ratiometric Tracking Conversion: Ensures accurate angular measurements by tracking the resolver signals relative to the reference signal.
- Flexible Output Configuration: Supports 8- or 16-bit bus operations with BYTE SELECT, ENABLE, and INHIBIT pins for easy data transfer.
- Input/Output Protection: Features overvoltage protection for analog inputs and short circuit protection for analog outputs.
Applications
The AD2S83APZ-REEL is widely used in various applications requiring precise angular measurements and reliable operation, including:
- Servo systems for loop stabilization and speed control.
- Industrial automation and control systems.
- Automotive systems, such as in steering and braking systems.
- Aerospace and defense applications where high accuracy and reliability are critical.
Q & A
- What is the primary function of the AD2S83APZ-REEL?
The primary function is to convert resolver signals into digital position and analog velocity signals. - What are the available resolutions for the AD2S83APZ-REEL?
The resolutions can be set to 10, 12, 14, or 16 bits. - What is the typical linearity of the velocity signal output?
The typical linearity is ±0.1%. - What is the reversion error of the AD2S83APZ-REEL?
The reversion error is less than ±0.3%. - What is the frequency range of the signal and reference inputs?
The frequency range is 0 to 20,000 Hz. - Does the AD2S83APZ-REEL have input/output protection features?
Yes, it features overvoltage protection for analog inputs and short circuit protection for analog outputs. - How is the resolution of the AD2S83APZ-REEL selected?
The resolution is selected using two control pins (SC1 and SC2). - What are the typical applications of the AD2S83APZ-REEL?
It is used in servo systems, industrial automation, automotive systems, and aerospace and defense applications. - Is the AD2S83APZ-REEL still in production?
No, this product is no longer manufactured but substitutes or alternative package types may be available. - What is the significance of ratiometric tracking conversion in the AD2S83APZ-REEL?
Ratiometric tracking conversion ensures accurate angular measurements by tracking the resolver signals relative to the reference signal.
