Overview
The AD2S1210SSTZ-EPRL7, produced by Analog Devices Inc., is a complete monolithic resolver-to-digital converter designed for high-precision applications. This device integrates an on-board programmable sinusoidal oscillator to provide sine wave excitation for resolvers. It supports a wide range of resolutions from 10-bit to 16-bit and is capable of tracking resolver signals at a maximum rate of 3125 revolutions per second (rps). The converter is highly accurate, offering ±2.5 arc minutes of accuracy and is compatible with both DSP and SPI interface standards. It is particularly suited for defense and aerospace applications due to its military temperature range of −55°C to +125°C and compliance with AQEC standards.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Resolution | Programmable resolution | 10-bit, 12-bit, 14-bit, 16-bit |
| Maximum Tracking Rate | Maximum revolutions per second | 3125 rps |
| Accuracy | Angular accuracy | ±2.5 arc minutes |
| Input Signal Range | Differential input voltage range | 3.15 V p-p ± 27% |
| Input Frequency Range | Range of sine and cosine input frequencies | 2 kHz to 20 kHz |
| Supply Voltage | Operating supply voltage | 5 V with 2.3 V to 5.25 V logic interface |
| Temperature Range | Operating temperature range | −55°C to +125°C |
| Package Type | Package type and pin count | 48-Lead LQFP (7x7) |
Key Features
- On-Board Programmable Sinusoidal Oscillator: Provides sine wave excitation for resolvers and is programmable to standard frequencies between 2 kHz and 20 kHz.
- System Fault Detection: Detects loss of resolver signals, out-of-range input signals, input signal mismatch, or loss of position tracking with programmable fault detection thresholds.
- Differential Inputs: Accepts differential input voltages of 3.15 V p-p ± 27%.
- Incremental Encoder Emulation: In standard A-quad-B format with direction output available.
- Digital Velocity Output: 10-bit to 16-bit signed digital velocity accessed via either a 16-bit parallel port or a 4-wire serial interface.
- Compatibility with DSP and SPI Standards: Compatible with both DSP and SPI interface standards.
- AQEC and AEC-Q100 Compliance: Supports defense and aerospace applications with AQEC standard compliance and is AEC-Q100 qualified for automotive applications.
Applications
- DC and AC Servo Motor Control: Used in precise motor control applications.
- Encoder Emulation: Emulates incremental encoders in standard A-quad-B format.
- Electric Power Steering and Electric Vehicles: Applied in automotive systems requiring high precision and reliability.
- Integrated Starter Generators and Alternators: Used in automotive and industrial power generation systems.
- Automotive Motion Sensing and Control: Utilized in various automotive motion sensing and control applications.
Q & A
- What is the maximum tracking rate of the AD2S1210SSTZ-EPRL7?
The maximum tracking rate is 3125 revolutions per second (rps).
- What are the supported resolutions of the AD2S1210SSTZ-EPRL7?
The device supports 10-bit, 12-bit, 14-bit, and 16-bit resolutions.
- What is the accuracy of the AD2S1210SSTZ-EPRL7?
The device offers an accuracy of ±2.5 arc minutes.
- 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 operating temperature range of the AD2S1210SSTZ-EPRL7?
The operating temperature range is −55°C to +125°C.
- Does the AD2S1210SSTZ-EPRL7 support incremental encoder emulation?
Yes, it supports incremental encoder emulation in standard A-quad-B format with direction output available.
- What interfaces does the AD2S1210SSTZ-EPRL7 support for data output?
The device supports both 16-bit parallel and 4-wire serial (SPI) interfaces for data output.
- Is the AD2S1210SSTZ-EPRL7 compliant with automotive safety standards?
Yes, it is AEC-Q100 qualified and has an ASIL B safety assessment certificate available for automotive applications.
- What package type and pin count does the AD2S1210SSTZ-EPRL7 have?
The device comes in a 48-Lead LQFP (7x7) package.
- Does the AD2S1210SSTZ-EPRL7 have system fault detection capabilities?
Yes, it includes a fault detection circuit that can sense various faults such as loss of resolver signals, out-of-range input signals, and more.
