Overview
The AD2S80ASD/883B is a monolithic resolver-to-digital converter produced by Analog Devices Inc. This device is part of the AD2S80A family and is specifically processed in accordance with MIL-STD-883B, Class B, making it suitable for military and high-reliability applications. It is available in 40-lead DIP or 44-terminal LCC ceramic packages. The AD2S80ASD/883B offers variable resolution settings of 10, 12, 14, or 16 bits, making it versatile for various precision requirements. It operates as a tracking converter, automatically initiating conversions based on input signal changes, and provides outputs compatible with 8- and 16-bit data buses.
Key Specifications
| Parameter | 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 Repeatability | - | - | 1 LSB | - |
| CONTROL DYNAMICS Tracking Rate (10 Bits) | - | - | 1040 rps | - |
| POWER CONSUMPTION | - | 300 mW | - | - |
Key Features
- Monolithic Design: A one-chip solution that reduces package size and increases reliability.
- Variable Resolution: Supports 10-, 12-, 14-, and 16-bit resolution settings.
- Low Power Consumption: Typical power consumption of 300 mW.
- High Tracking Rate: Up to 1040 revolutions per second for 10-bit resolution.
- Ratiometric Conversion: Conversion depends only on the ratio of input signals, making it tolerant to amplitude and frequency variations.
- ESD Protection: ESD Class 2 protection (2,000 V min).
- Military Grade: Available processed in accordance with MIL-STD-883B, Class B.
- Velocity Output: Provides an analog signal proportional to velocity, which can replace a tachogenerator.
Applications
- DC Brushless and AC Motor Control: Suitable for precise motor control applications.
- Process Control: Used in various process control systems requiring high precision.
- Numerical Control of Machine Tools: Ideal for CNC machines and other precision machinery.
- Robotics Axis Control: Used in robotic systems for precise axis control.
- Military Servo Control: Suitable for military applications requiring high reliability and precision.
Q & A
- What is the AD2S80ASD/883B used for?
The AD2S80ASD/883B is a monolithic resolver-to-digital converter used in applications requiring precise angle and velocity measurements, such as motor control, process control, and robotics.
- What are the available resolution settings for the AD2S80ASD/883B?
The device supports 10-, 12-, 14-, and 16-bit resolution settings.
- What is the typical power consumption of the AD2S80ASD/883B?
The typical power consumption is 300 mW.
- What is the maximum tracking rate for the 10-bit resolution setting?
The maximum tracking rate for the 10-bit resolution setting is 1040 revolutions per second.
- Does the AD2S80ASD/883B have ESD protection?
Yes, it has ESD Class 2 protection (2,000 V min).
- Is the AD2S80ASD/883B suitable for military applications?
Yes, it is available processed in accordance with MIL-STD-883B, Class B.
- What types of packages are available for the AD2S80ASD/883B?
The device is available in 40-lead DIP or 44-terminal LCC ceramic packages.
- Can the AD2S80ASD/883B replace a tachogenerator?
Yes, it provides an analog signal proportional to velocity that can replace a tachogenerator.
- What is the operating frequency range for the signal inputs?
The operating frequency range for the signal inputs is from 50 Hz to 20,000 Hz.
- Is the AD2S80ASD/883B tolerant to input amplitude and frequency variations?
Yes, the conversion depends only on the ratio of the input signals, making it tolerant to amplitude and frequency variations.
