Part A
AD2S83APZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5359 PCS
- Package
- PLCC-44
- Series
- Acquisição de dados - ADCs-DACs - Objetivo Especial
Replacement verdict
Compatible functional replacement candidate
The AD2S83APZ and AD2S82ALP are both monolithic resolver-to-digital converters from Analog Devices sharing the same core conversion architecture, resolution, and input signal characteristics. While they are not pin-identical due to differing package types and velocity signal output configurations, the AD2S83APZ can serve as a functional replacement candidate for the AD2S82ALP in many resolver interface applications where board layout permits package adaptation and the velocity output format is acceptable. Designers should validate the velocity signal interface and mechanical footprint before committing to a drop-in substitution.
Resolution
High match
Input Signal Type
High match
Package Type
Validation required
Velocity Output
Validation required
Parts at a glance
Part B
AD2S82ALP
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 9884 PCS
- Package
- LCC-44
- Series
- Acquisição de dados - ADCs-DACs - Objetivo Especial
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD2S83APZ | AD2S82ALP | Why it matters |
|---|---|---|---|
| Resolution (bits) | 10, 12, 14, 16 (selectable) | 10, 12, 14, 16 (selectable) | Resolution determines the smallest angular increment the resolver-to-digital converter can resolve, directly affecting position accuracy in servo and motion-control loops. |
| Package / Mounting | 44-Lead PLCC (surface mount) | 44-Lead LCC (surface mount) | Package type affects PCB footprint, assembly process, and thermal characteristics; a different package may require board redesign for drop-in substitution. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | The temperature range defines the environments where the device can reliably operate, critical for industrial and aerospace applications. |
| Supply Voltage | ±12 V (dual supply) | ±12 V (dual supply) | Supply voltage compatibility ensures the part can be powered from the existing system rails without additional regulation circuitry. |
| Input Signal Type | Resolver (sin/cos) | Resolver (sin/cos) | The input signal type must match the sensor output; both accept resolver sin/cos signals, enabling functional interchangeability in resolver-based systems. |
| Tracking Rate | Up to 1040 rps (16-bit) | Up to 1040 rps (16-bit) | Maximum tracking rate determines how fast the converter can follow changing resolver angles without losing lock, key for high-speed motor control. |
| Velocity Output | Analog velocity signal available | Analog velocity signal available | An analog velocity output allows direct speed feedback for servo loops without additional differentiation circuitry. |
| Data Interface | Parallel binary (natural binary) | Parallel binary (natural binary) | The output data format must match the host processor or encoder interface for correct angle readout and system integration. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD2S83APZ | AD2S82ALP |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Type | R/D Converter | R/D Converter |
| Number of Channels | 2 | 2 |
| Resolution(Bits) | 10, 12, 14, 16 b | 10, 12, 14, 16 b |
| Data Interface | Parallel | Parallel |
| Voltage Supply Source | Analog and Digital, Dual ± | Dual ± |
| Voltage - Supply | ±12V, 5V | ±10.8V ~ 13.2V |
| Operating Temperature | -40°C ~ 85°C | 0°C ~ 70°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the AD2S83APZ and AD2S82ALP?
The AD2S83APZ and AD2S82ALP are variable resolution, monolithic resolver-to-digital converters (RDCs) from Analog Devices. They convert resolver signals into digital angle and velocity outputs for motion control and position sensing applications.
What is the key difference between the AD2S83APZ and AD2S82ALP?
The primary difference is the operating temperature range and package grade. The AD2S83APZ is specified for the commercial temperature range of 0°C to +70°C in a 44-lead PLCC package. The AD2S82ALP is specified for the industrial temperature range of -40°C to +85°C in a 44-lead PLCC package.
Are the AD2S83APZ and AD2S82ALP pin-compatible?
Yes. Both devices are offered in the same 44-lead PLCC package and share the same pinout, allowing them to be used in the same PCB footprint. However, the AD2S82ALP's wider temperature range must be considered for the target application.
Can the AD2S83APZ and AD2S82ALP be used interchangeably?
They can be used interchangeably only if the application's operating temperature range is within 0°C to +70°C. For applications requiring operation below 0°C or above +70°C, the AD2S82ALP must be used instead of the AD2S83APZ.
What is the resolution of the AD2S83APZ and AD2S82ALP?
Both devices offer selectable resolution of 10, 12, 14, or 16 bits. The resolution is set by external logic inputs, allowing flexibility for different system accuracy requirements.
What are the input signal requirements for the AD2S83APZ and AD2S82ALP?
Both RDCs accept differential resolver signals (sine and cosine) with a nominal input voltage range of 2 V rms ±10%. The reference input is also differential and typically 2 V rms. These parameters are common to both devices.
Do the AD2S83APZ and AD2S82ALP require external components for operation?
Yes. Both devices require external components for proper operation, including a reference oscillator, filter capacitors, and gain-setting resistors. The datasheet provides recommended values and circuit configurations for each resolution setting.
What are the typical applications for the AD2S83APZ and AD2S82ALP?
Typical applications include servo motor control, robotics, antenna positioning, and industrial automation. The AD2S82ALP is preferred for industrial and outdoor environments due to its extended temperature range, while the AD2S83APZ is suited for commercial and laboratory equipment.