Overview
The AD2S90APZ is a complete 12-bit resolution tracking resolver-to-digital converter produced by Analog Devices Inc. This device is designed to convert resolver signals into digital format without the need for external components. It operates on a Type II servo loop principle, continuously tracking the position of the resolver and providing both incremental encoder emulation and absolute serial angular position data. The AD2S90APZ is fabricated using Analog Devices’ Linear Compatible CMOS (LC2MOS) process, combining precision bipolar circuits with low-power CMOS logic circuits.
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% | V | SIN and COS inputs |
| Power Supply | ±4.75 V | ±5.25 V | V | VDD and VSS |
| Power Consumption | - | 50 mW | mW | - |
| Accuracy | - | ±10.6 arcmin | arcmin | - |
| Operating Temperature | -40°C | 85°C | °C | Industrial temperature range |
| Package Type | - | - | 20-Lead PLCC | - |
Key Features
- Complete monolithic resolver-to-digital converter requiring no external components.
- Dual format position data: incremental encoder emulation in standard A QUAD B format and absolute serial 12-bit angular binary position data.
- High accuracy with ±10.6 arcmin resolution.
- Low power consumption of 50 mW.
- Input protection circuit for ESD protection.
- Operates on ±5 V dc power supplies.
- Fabricated using LC2MOS process combining precision bipolar and low-power CMOS logic circuits.
Applications
- Industrial motor control and servo motor control.
- Industrial gauging and encoder emulation.
- Automotive motion sensing and control.
- Factory automation and limit switching.
Q & A
- What is the resolution of the AD2S90APZ?
The AD2S90APZ has a 12-bit resolution. - What is the input signal range for the AD2S90APZ?
The input signal range is from 3 kHz to 20 kHz for SIN, COS, and REF inputs. - What is the maximum input signal level for the AD2S90APZ?
The maximum input signal level is 2 V rms ± 10% for SIN and COS inputs. - What is the power supply requirement for the AD2S90APZ?
The device operates on ±5 V dc power supplies. - What is the power consumption of the AD2S90APZ?
The power consumption is 50 mW. - What is the accuracy of the AD2S90APZ?
The accuracy is ±10.6 arcmin. - What is the operating temperature range of the AD2S90APZ?
The operating temperature range is from -40°C to 85°C. - What type of package does the AD2S90APZ come in?
The device comes in a 20-Lead PLCC package. - Does the AD2S90APZ require external components to operate?
No, the AD2S90APZ does not require external components to operate. - What are some common applications of the AD2S90APZ?
Common applications include industrial motor control, servo motor control, industrial gauging, automotive motion sensing, and factory automation.
