Overview
The AD2S1210DSTZ, produced by Analog Devices Inc., is a comprehensive 10-bit to 16-bit resolution tracking resolver-to-digital converter. This device integrates an on-board programmable sinusoidal oscillator, which provides sine wave excitation for resolvers. It is designed to convert the analog signals from a resolver into digital representations of position and velocity, making it highly suitable for various precision control applications. The converter features a Type II servo loop for continuous output position data without conversion delay, ensuring high accuracy and noise immunity. It is also AEC-Q100 qualified and has an ASIL B safety assessment certificate, making it reliable for automotive and other critical applications.
Key Specifications
| Specification | Details |
|---|---|
| Resolution | 10-bit to 16-bit, set by user |
| Maximum Tracking Rate | 3125 rps (at 10-bit resolution and CLKIN = 10.24 MHz) |
| Angular Accuracy | ±2.5 (+ 1 LSB) arc minutes (B and D grades) |
| Input Signal Range | 3.15 V p-p ± 27% (sine and cosine inputs) |
| Input Frequency Range | 2 kHz to 20 kHz |
| Supply Voltage | 5 V with 2.3 V to 5.25 V logic interface |
| Temperature Rating | −40°C to +125°C (C, D, and W grades) |
| Data Interface | Parallel and serial (SPI compatible) |
| Fault Detection | System fault detection with programmable thresholds |
| RoHS Compliance | Yes |
Key Features
- Ratiometric tracking conversion with a Type II servo loop for continuous output position data without conversion delay.
- System fault detection with programmable fault detection thresholds to sense loss of resolver signals, out-of-range input signals, input signal mismatch, or loss of position tracking.
- Programmable sinusoidal oscillator on-board for excitation frequency between 2 kHz and 20 kHz.
- Triple format position data: absolute 10-bit to 16-bit angular position data via parallel or serial interface, and incremental encoder emulation in standard A-quad-B format.
- Digital velocity output: 10-bit to 16-bit signed digital velocity accessed via parallel or serial interface.
- Differential inputs and compatibility with DSP and SPI standards.
- Incremental encoder emulation with direction output available.
Applications
- DC and AC servo motor control.
- Encoder emulation.
- Electric power steering.
- Electric vehicles.
- Integrated starter generators and alternators.
- Automotive motion sensing and control.
- Defense and aerospace applications (AD2S1210-EP model).
Q & A
- What is the resolution of the AD2S1210DSTZ?
The AD2S1210DSTZ has a resolution of 10-bit to 16-bit, which can be set by the user.
- What is the maximum tracking rate of the AD2S1210DSTZ?
The maximum tracking rate is 3125 rps at 10-bit resolution and CLKIN = 10.24 MHz.
- What is the angular accuracy of the AD2S1210DSTZ?
The angular accuracy is ±2.5 (+ 1 LSB) arc minutes for B and D grades.
- What is the input signal range for the sine and cosine inputs?
The input signal range is 3.15 V p-p ± 27%.
- What is the temperature rating of the AD2S1210DSTZ?
The temperature rating is −40°C to +125°C for C, D, and W grades.
- Is the AD2S1210DSTZ RoHS compliant?
- What safety certifications does the AD2S1210DSTZ have?
- What are the common applications of the AD2S1210DSTZ?
- How does the fault detection feature work in the AD2S1210DSTZ?
- What data interfaces are available on the AD2S1210DSTZ?
