Overview
The AD2S80AJD, produced by Analog Devices Inc., is a monolithic resolver-to-digital converter that provides a digital representation of resolver position. This device is available in 10-, 12-, 14-, or 16-bit resolutions, making it versatile for various applications. It is housed in either a 40-lead DIP or a 44-terminal LCC package, enhancing reliability and reducing package size. The AD2S80AJD operates as a tracking converter, forming a Type 2 closed-loop system, and it automatically initiates conversion with each LSB increment or decrement of the input, eliminating the need for a convert command.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Frequency (Signal Input) | 50 | 20,000 | Hz | ||
| Voltage Level (Signal Input) | 1.8 | 2.0 | 2.2 | V rms | |
| Input Bias Current (Signal Input) | 60 | 150 | nA | ||
| Input Impedance (Signal Input) | 1.0 | MΩ | |||
| Maximum Voltage (Signal Input) | 8 | V pk | |||
| Frequency (Reference Input) | 50 | 20,000 | Hz | ||
| Voltage Level (Reference Input) | 1.0 | 8.0 | V pk | ||
| Input Bias Current (Reference Input) | 60 | 150 | nA | ||
| Input Impedance (Reference Input) | 1.0 | MΩ | |||
| Tracking Rate (10 Bits) | 1040 | rps | |||
| Power Consumption | 300 | mW |
Key Features
- Monolithic (BiMOS II) tracking resolver-to-digital converter
- Available in 10-, 12-, 14-, and 16-bit resolutions
- Low power consumption: 300 mW typical
- High maximum tracking rate: up to 1040 rps for 10-bit resolution
- Ratiometric conversion, tolerant of input amplitude and frequency variations
- Analog velocity output available, can replace a tachogenerator
- ESD Class 2 protection (2,000 V min)
- Military temperature range versions available, processed in accordance with MIL-STD-883B, Class B
Applications
- DC brushless and AC motor control
- Process control
- Numerical control of machine tools
- Robotics axis control
- Military servo control
Q & A
- What is the AD2S80AJD? The AD2S80AJD is a monolithic resolver-to-digital converter produced by Analog Devices Inc.
- What are the available resolutions for the AD2S80AJD? The AD2S80AJD is available in 10-, 12-, 14-, and 16-bit resolutions.
- What is the typical power consumption of the AD2S80AJD? The typical power consumption is 300 mW.
- What is the maximum tracking rate for the 10-bit resolution? The maximum tracking rate for the 10-bit resolution is 1040 rps.
- Does the AD2S80AJD require an accurate reference signal? No, the AD2S80AJD is tolerant of input amplitude and frequency variations due to its ratiometric conversion.
- What kind of protection does the AD2S80AJD have against ESD? The AD2S80AJD has ESD Class 2 protection (2,000 V min).
- Are there military-grade versions of the AD2S80AJD available? Yes, the AD2S80AJD is available in military temperature range versions, processed in accordance with MIL-STD-883B, Class B.
- What are some common applications of the AD2S80AJD? Common applications include DC brushless and AC motor control, process control, numerical control of machine tools, robotics axis control, and military servo control.
- What type of package is the AD2S80AJD available in? The AD2S80AJD is available in either a 40-lead DIP or a 44-terminal LCC package.
- Does the AD2S80AJD provide an analog velocity output? Yes, the AD2S80AJD provides an analog velocity output that can replace a tachogenerator.
