Overview
The AD2S81AJD is a monolithic 12-bit fixed resolution tracking resolver-to-digital converter produced by Analog Devices Inc. This device is packaged in a 28-lead DIP (Dual In-Line Package) and utilizes a ratiometric tracking conversion method to convert resolver format input signals into a parallel natural binary digital word. This method ensures high noise immunity and tolerance of lead length, making it suitable for applications where the converter is remote from the resolver. The AD2S81AJD is part of the AD2S81A series, which offers low power consumption and high dynamic performance set by the user through external components.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Resolution | - | - | 12 bits | - | - |
| Package | - | - | 28-lead DIP | - | - |
| Operating Temperature | - | 0°C | - | 70°C | °C |
| Accuracy | - | - | 30 arc min | - | - |
| Power Consumption | - | - | 300 mW (Typ) | - | mW |
| ESD Protection | - | - | Class II (2000 V min) | - | V |
| Output Data Lines | - | - | 8 | - | - |
Key Features
- Monolithic Tracking R/D Converter: Integrated in a single chip for reliability and compactness.
- Ratiometric Conversion: Ensures high noise immunity and tolerance of lead length.
- Low Power Consumption: Typically only 300 mW, making it energy-efficient.
- Dynamic Performance Set by User: Users can define the converter's performance using external components.
- Velocity Output: Provides velocity feedback data, useful in servo controls and other applications.
- ESD Protection: Class II (2000 V min) protection against electrostatic discharge.
- Industrial Temperature Range: Operates from 0°C to 70°C, suitable for various industrial environments.
Applications
- DC Brushless and AC Motor Control: Used in motor control systems for precise position and velocity feedback.
- Process Control: Utilized in process control systems for accurate measurement and control.
- Numerical Control of Machine Tools: Employed in CNC machines for precise positioning and control.
- Robotics Axis Control: Used in robotic systems for accurate axis control and positioning.
Q & A
- What is the resolution of the AD2S81AJD?
The AD2S81AJD has a fixed resolution of 12 bits.
- What is the package type of the AD2S81AJD?
The AD2S81AJD is packaged in a 28-lead DIP (Dual In-Line Package).
- What is the operating temperature range of the AD2S81AJD?
The operating temperature range is from 0°C to 70°C.
- How much power does the AD2S81AJD typically consume?
The AD2S81AJD typically consumes 300 mW of power.
- What level of ESD protection does the AD2S81AJD have?
The AD2S81AJD has Class II (2000 V min) ESD protection.
- What is the method used by the AD2S81AJD for converting resolver signals?
The AD2S81AJD uses a ratiometric tracking conversion method.
- Can the dynamic performance of the AD2S81AJD be set by the user?
Yes, the dynamic performance can be set by the user using external components.
- What are some common applications of the AD2S81AJD?
Common applications include DC brushless and AC motor control, process control, numerical control of machine tools, and robotics axis control.
- How many output data lines does the AD2S81AJD have?
The AD2S81AJD has 8 output data lines.
- Does the AD2S81AJD provide velocity output?
Yes, the AD2S81AJD provides velocity output, which is useful in servo controls and other applications.
