Overview
The AD2S80ATD/B, produced by Analog Devices Inc., is a variable resolution, monolithic resolver-to-digital converter. This device is part of the AD2S80A family and is known for its high reliability and performance in various industrial and military applications. The AD2S80ATD/B operates as a tracking resolver-to-digital converter, forming a Type 2 closed-loop system, which automatically follows the input for speeds up to the selected maximum tracking rate. It is available in different package options, including 40-lead DIP and 44-terminal LCC packages, and is processed in accordance with MIL-STD-883B, Class B for military-grade reliability.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| SIGNAL INPUTS Frequency | 50 | 20,000 | Hz | ||
| SIGNAL INPUTS Voltage Level | 1.8 | 2.0 | 2.2 | V rms | |
| SIGNAL INPUTS Input Bias Current | 60 | 150 | nA | ||
| SIGNAL INPUTS Input Impedance | 1.0 | MΩ | |||
| SIGNAL INPUTS Maximum Voltage | 8 | V pk | |||
| REFERENCE INPUT Frequency | 50 | 20,000 | Hz | ||
| REFERENCE INPUT Voltage Level | 1.0 | 8.0 | V pk | ||
| CONTROL DYNAMICS Tracking Rate (10 Bits) | 1040 | rps | |||
| POWER CONSUMPTION | 300 | mW |
Key Features
- Monolithic Design: The AD2S80ATD/B is a one-chip solution, reducing package size and increasing reliability.
- Variable Resolution: Supports 10-, 12-, 14-, and 16-bit resolution, set by the user.
- Low Power Consumption: Typically operates at 300 mW.
- High Tracking Rate: Up to 1040 rps for 10-bit resolution.
- Temperature Range: Available in industrial and military temperature range versions.
- ESD Protection: ESD Class 2 protection (2,000 V min).
- Analog Velocity Output: Provides an analog signal proportional to velocity, which can replace a tachogenerator.
Applications
- DC Brushless and AC Motor Control: Used in motor control systems for precise positioning and velocity measurement.
- Process Control: Employed in process control systems for accurate data conversion.
- Numerical Control of Machine Tools: Utilized in CNC machines for precise axis control.
- Robotics Axis Control: Used in robotic systems for accurate and reliable position and velocity feedback.
- Military Servo Control: Suitable for military applications due to its high reliability and compliance with MIL-STD-883B, Class B.
Q & A
- What is the AD2S80ATD/B used for?
The AD2S80ATD/B is a resolver-to-digital converter used in various applications such as motor control, process control, numerical control of machine tools, robotics, and military servo control.
- What are the available resolutions for the AD2S80ATD/B?
The AD2S80ATD/B supports 10-, 12-, 14-, and 16-bit resolutions, set by the user.
- What is the typical power consumption of the AD2S80ATD/B?
The typical power consumption is 300 mW.
- What is the maximum tracking rate for the 10-bit resolution of the AD2S80ATD/B?
The maximum tracking rate for 10-bit resolution is 1040 rps.
- Does the AD2S80ATD/B have ESD protection?
Yes, it has ESD Class 2 protection (2,000 V min).
- What temperature ranges are available for the AD2S80ATD/B?
The device is available in both industrial and military temperature range versions.
- Can the AD2S80ATD/B replace a tachogenerator?
Yes, it provides an analog signal proportional to velocity, which can replace a tachogenerator.
- What are the package options for the AD2S80ATD/B?
The device is available in 40-lead DIP and 44-terminal LCC packages.
- Is the AD2S80ATD/B suitable for military applications?
Yes, it is processed in accordance with MIL-STD-883B, Class B, making it suitable for military applications.
- How does the AD2S80ATD/B handle input signal variations?
The conversion depends only on the ratio of the input signals, making it tolerant of input amplitude and frequency variations.
