Overview
The AD2S83IPZ, produced by Analog Devices Inc., is a monolithic resolver-to-digital converter that offers high accuracy and versatility. This component converts resolver format input signals into a parallel natural binary digital word using a ratiometric tracking conversion method, ensuring high noise immunity and tolerance of long leads. It is particularly useful in applications requiring precise position and velocity measurements, such as in servo systems and industrial automation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 10, 12, 14, or 16 bits | - |
| Reference Frequency | 0 Hz to 20,000 Hz | Hz |
| Input Voltage (SIN, COS) | 1.8 to 2.2 V rms | V rms |
| Input Bias Current (SIN, COS) | 60 to 150 nA | nA |
| Input Impedance (SIN, COS) | 1.0 MΩ | Ω |
| Tracking Rate (10 Bits) | 1040 rps | rps |
| Tracking Rate (12 Bits) | 260 rps | rps |
| Tracking Rate (14 Bits) | 65 rps | rps |
| Tracking Rate (16 Bits) | 16.25 rps | rps |
| Angular Accuracy | ±8 arc min + 1 LSB | arc min |
| Velocity Signal Linearity | ±0.15% to ±1.0% FSR | % FSR |
| Reversion Error | ±0.5% to ±1.5% O/P | % O/P |
| DC Zero Offset | ±3 mV | mV |
| Gain Scaling Accuracy | ±1.5% to ±3% FSR | % FSR |
| Output Voltage (1 mA Load) | ±8 V | V |
| Dynamic Ripple Mean Value | 1.0% rms O/P | % rms O/P |
Key Features
- User-Selectable Resolution: The AD2S83IPZ allows users to select the resolution to be 10, 12, 14, or 16 bits, optimizing the total system performance for each application.
- Ratiometric Tracking Conversion: This method ensures high noise immunity and tolerance of long leads, enabling the converter to be located remotely from the resolver.
- Precise Analog Velocity Signal: A precise analog signal proportional to velocity is available, replacing the need for mechanical tachogenerators in servo systems.
- High Accuracy and Linearity: The converter provides high accuracy velocity output with typical linearity of ±0.1% and reversion error less than ±0.3%.
- Flexible Operation: The converter operates over reference frequencies in the range 0 Hz to 20,000 Hz and supports 8- or 16-bit bus configurations.
- Input/Output Protection: The device includes overvoltage protection for analog inputs and short-circuit protection for analog outputs.
Applications
- Servo Systems: The AD2S83IPZ is ideal for servo systems where precise position and velocity measurements are critical for loop stabilization and speed control.
- Industrial Automation: It is used in various industrial automation applications requiring accurate and reliable position and velocity data.
- Motion Control Systems: The converter is suitable for motion control systems that demand high precision and reliability.
- Aerospace and Defense: Its high accuracy and robust design make it a candidate for aerospace and defense applications.
Q & A
- What is the resolution range of the AD2S83IPZ?
The AD2S83IPZ allows users to select resolutions of 10, 12, 14, or 16 bits.
- What is the operating frequency range of the AD2S83IPZ?
The converter operates over reference frequencies in the range 0 Hz to 20,000 Hz.
- What is the typical linearity of the velocity output?
The typical linearity of the velocity output is ±0.1%.
- Does the AD2S83IPZ provide analog velocity output?
Yes, the AD2S83IPZ provides a precise analog signal proportional to velocity.
- How does the AD2S83IPZ protect against overvoltage and short circuits?
The device includes overvoltage protection for analog inputs and short-circuit protection for analog outputs.
- What is the maximum tracking rate for 10-bit resolution?
The maximum tracking rate for 10-bit resolution is 1040 rps (62,400 rpm).
- Can the AD2S83IPZ be used in servo systems?
Yes, it is ideal for servo systems to provide precise position and velocity measurements for loop stabilization and speed control.
- What is the angular accuracy of the AD2S83IPZ?
The angular accuracy is ±8 arc min + 1 LSB.
- How does the ratiometric tracking conversion method benefit the AD2S83IPZ?
This method ensures high noise immunity and tolerance of long leads, allowing the converter to be located remotely from the resolver.
- What is the output format of the digital position data?
The output format is bidirectional natural binary.
