Overview
The AD2S83IP-REEL, produced by Analog Devices Inc., is a monolithic variable resolution resolver-to-digital converter. This device is designed to convert resolver signals into digital data, offering high accuracy and flexibility in resolution selection. It supports resolutions of 10, 12, 14, or 16 bits, making it versatile for various applications. The AD2S83IP-REEL also provides a precise analog velocity signal, eliminating the need for mechanical tachogenerators in servo systems.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| SIGNAL INPUTS (SIN, COS) Frequency | 0 | 20,000 | Hz | |
| SIGNAL INPUTS (SIN, COS) Voltage Level | 1.8 | 2.0 | 2.2 | V rms |
| SIGNAL INPUTS (SIN, COS) Input Bias Current | 60 | 150 | nA | |
| SIGNAL INPUTS (SIN, COS) Input Impedance | 1.0 | MΩ | ||
| REFERENCE INPUT (REF) Frequency | 0 | 20,000 | Hz | |
| REFERENCE INPUT (REF) Voltage Level | 1.0 | 8.0 | V pk | |
| REFERENCE INPUT (REF) Input Bias Current | 60 | 150 | nA | |
| REFERENCE INPUT (REF) Input Impedance | 1.0 | MΩ | ||
| Resolution | 10, 12, 14, 16 | Bits | ||
| Tracking Rate (10 Bits) | 1040 | rps | ||
| Tracking Rate (12 Bits) | 260 | rps | ||
| Tracking Rate (14 Bits) | 65 | rps | ||
| Tracking Rate (16 Bits) | 16.25 | rps | ||
| Angular Accuracy | ±1 LSB arc min | |||
| Velocity Signal Linearity | ±0.15% to ±1.0% | FSR |
Key Features
- User-Selectable Resolution: The AD2S83IP allows users to select resolutions of 10, 12, 14, or 16 bits, optimizing the total system performance for each application.
- Precise Analog Velocity Signal: Generates a precise analog velocity signal, replacing the need for mechanical tachogenerators in servo systems, with a typical linearity of ±0.1% and reversion error less than ±0.3%.
- Ratiometric Tracking Conversion: This technique ensures accurate tracking and conversion of resolver signals to digital data.
- High Accuracy and Monotonicity: Ensures high angular accuracy and guaranteed monotonicity, with missing codes limited to 4 codes at 16-bit resolution.
- Input/Output Protection: Features overvoltage protection for analog inputs and short-circuit protection for analog outputs.
Applications
- Servo Systems: Used to provide loop stabilization and speed control by generating a precise analog velocity signal, replacing mechanical tachogenerators.
- Industrial Automation: Suitable for applications requiring high accuracy and reliability in position and velocity measurement.
- Motion Control Systems: Ideal for systems that require precise tracking and conversion of resolver signals to digital data.
- Aerospace and Defense: Used in applications where high accuracy and reliability are critical, such as in navigation and control systems.
Q & A
- What is the AD2S83IP-REEL?
The AD2S83IP-REEL is a monolithic variable resolution resolver-to-digital converter produced by Analog Devices Inc.
- What resolutions does the AD2S83IP support?
The AD2S83IP supports resolutions of 10, 12, 14, or 16 bits, selectable by the user.
- What is the typical linearity of the velocity signal generated by the AD2S83IP?
The typical linearity of the velocity signal is ±0.1%.
- What is the reversion error of the AD2S83IP?
The reversion error is less than ±0.3%.
- What is the input impedance of the signal inputs?
The input impedance of the signal inputs is 1.0 MΩ.
- What is the maximum tracking rate for 16-bit resolution?
The maximum tracking rate for 16-bit resolution is 16.25 rps.
- Does the AD2S83IP provide any protection for its inputs and outputs?
Yes, it features overvoltage protection for analog inputs and short-circuit protection for analog outputs.
- In what temperature range does the AD2S83IP operate?
The AD2S83IP operates in the temperature range of –40°C to +85°C.
- What are some common applications of the AD2S83IP?
Common applications include servo systems, industrial automation, motion control systems, and aerospace and defense.
- How does the AD2S83IP improve servo system performance?
The AD2S83IP improves servo system performance by providing a precise analog velocity signal, replacing the need for mechanical tachogenerators and enhancing loop stabilization and speed control.
