Overview
The AD2S1205WSTZ is a 12-bit resolution tracking resolver-to-digital converter manufactured by Analog Devices Inc. This component is designed to provide precise angular position and velocity data from resolver signals. It features an on-board programmable sinusoidal oscillator and supports single-supply operation, making it versatile for various applications. The AD2S1205WSTZ is housed in a 44-lead Low Profile Quad Flat Package (LQFP) and operates over a temperature range of -40°C to +125°C, making it suitable for harsh environments.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 12 bits |
| Supply Voltage | 4.75 V to 5.25 V |
| Temperature Range | -40°C to +125°C |
| Package Type | 44-lead LQFP |
| Excitation Frequency | Programmable: 10 kHz, 12 kHz, 15 kHz, or 20 kHz |
| Input Signal Range | 3.15 V p-p ± 27% |
| ESD Protection | 4 kV |
| Interface | 12-bit parallel port or 3-wire serial interface |
Key Features
- Incremental encoder emulation in standard A-quad-B format with direction output available.
- Programmable sinusoidal oscillator on board.
- Single-supply operation (5.00 V ± 5%).
- Triple format position data: absolute 12-bit angular position data accessible via either a 12-bit parallel port or a 3-wire serial interface.
- Digital velocity output: 12-bit signed digital velocity accessible via either a 12-bit parallel port or a 3-wire serial interface.
- Fault detection circuit for sensing loss of resolver signals, out-of-range input signals, input signal mismatch, or loss of position tracking.
- Type II tracking loop for tracking constant velocity inputs without inherent error.
Applications
- Automotive motion sensing and control.
- Hybrid-electric vehicles.
- Electric power steering.
- Integrated starter generator/alternator.
- Industrial motor control.
- Process control.
Q & A
- What is the resolution of the AD2S1205WSTZ?
The AD2S1205WSTZ has a 12-bit resolution.
- What is the operating temperature range of the AD2S1205WSTZ?
The operating temperature range is -40°C to +125°C.
- What types of interfaces does the AD2S1205WSTZ support?
The AD2S1205WSTZ supports both a 12-bit parallel port and a 3-wire serial interface.
- Can the excitation frequency of the AD2S1205WSTZ be programmed?
- What kind of fault detection does the AD2S1205WSTZ have?
The AD2S1205WSTZ has a fault detection circuit that can sense loss of resolver signals, out-of-range input signals, input signal mismatch, or loss of position tracking.
- Is the AD2S1205WSTZ suitable for automotive applications?
- What is the package type of the AD2S1205WSTZ?
The AD2S1205WSTZ is housed in a 44-lead Low Profile Quad Flat Package (LQFP).
- Does the AD2S1205WSTZ support incremental encoder emulation?
- What is the ESD protection level of the AD2S1205WSTZ?
The AD2S1205WSTZ has 4 kV ESD protection.
- How does the AD2S1205WSTZ handle constant velocity inputs?
The AD2S1205WSTZ uses a Type II tracking loop to track constant velocity inputs without inherent error.
