Overview
The AD2S90APZ-RL7, produced by Analog Devices Inc., is a complete 12-bit resolution tracking resolver-to-digital converter. This device is designed to convert resolver signals into digital format without the need for external components. It operates on ±5 V dc power supplies and is fabricated using Analog Devices’ Linear Compatible CMOS (LC2MOS) process, which combines precision bipolar circuits with low power CMOS logic circuits. The AD2S90 provides both incremental encoder emulation and absolute serial position data, making it a versatile solution for various industrial and automotive applications.
Key Specifications
| Parameter | Min | Max | Units | Test Conditions/Notes |
|---|---|---|---|---|
| Resolution | 12 bits | |||
| Input Signal Range | 3 kHz | 20 kHz | Frequency | SIN, COS, and REF inputs |
| Input Signal Level | 2 V rms ± 10% | Voltage | SIN and COS inputs | |
| Power Supplies | ±4.75 V | ±5.25 V | V dc | VDD and VSS |
| Power Consumption | 50 mW | Power | ||
| Operating Temperature Range | -40°C | +85°C | °C | |
| Package Type | 20-Lead PLCC | |||
Key Features
- Complete Resolver-Digital Interface: The AD2S90 provides a complete solution for digitizing resolver signals without the need for external components.
- Dual Format Position Data: Offers both incremental encoder emulation in standard A QUAD B format and absolute serial 12-bit angular binary position data accessed via a simple 3-wire interface.
- High Accuracy: Provides high accuracy with a single high accuracy grade in a low-cost package, with an angular error of ±10.6 arc minutes.
- Input Protection: Features an input protection circuit consisting of large distributed diodes and polysilicon series resistors to protect against ESD and other high energy discharges.
- Low Power Consumption: Operates at a low power consumption of 50 mW, making it suitable for a variety of applications.
Applications
- Industrial Motor Control: Used in controlling industrial motors for precise positioning and velocity measurement.
- Servo Motor Control: Ideal for servo motor control applications requiring high accuracy and reliability.
- Industrial Gauging and Encoder Emulation: Suitable for industrial gauging and encoder emulation due to its incremental encoder emulation capabilities.
- Automotive Motion Sensing and Control: Applied in automotive systems for motion sensing and control, ensuring precise and reliable operation.
- Factory Automation and Limit Switching: Used in factory automation and limit switching applications where accurate position sensing is critical.
Q & A
- What is the resolution of the AD2S90APZ-RL7?
The AD2S90APZ-RL7 has a 12-bit resolution.
- What is the input signal range for the AD2S90APZ-RL7?
The input signal range is from 3 kHz to 20 kHz for SIN, COS, and REF inputs.
- What is the power supply requirement for the AD2S90APZ-RL7?
The device operates on ±5 V dc power supplies, with a tolerance of ±5%.
- What type of package does the AD2S90APZ-RL7 come in?
The AD2S90APZ-RL7 comes in a 20-Lead PLCC package.
- What are the key features of the AD2S90APZ-RL7?
The key features include a complete resolver-digital interface, dual format position data, high accuracy, input protection, and low power consumption.
- What are some common applications of the AD2S90APZ-RL7?
Common applications include industrial motor control, servo motor control, industrial gauging, automotive motion sensing and control, and factory automation.
- Does the AD2S90APZ-RL7 require external components to operate?
No, the AD2S90APZ-RL7 does not require external components to operate.
- What is the operating temperature range of the AD2S90APZ-RL7?
The operating temperature range is from -40°C to +85°C.
- How does the AD2S90APZ-RL7 protect against ESD?
The device features an input protection circuit consisting of large distributed diodes and polysilicon series resistors to protect against ESD and other high energy discharges.
- What is the power consumption of the AD2S90APZ-RL7?
The power consumption is 50 mW.
