Part A
AD2S82AHPZ
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3292 PCS
- Package
- LCC-44
- Series
- Data Acquisition - ADCs-DACs - Special Purpose
Replacement verdict
Compatible functional replacement candidate
The AD2S82AHPZ and AD2S83IP are both monolithic resolver-to-digital converters from Analog Devices sharing the same 44-pin PQFP package and core R/D conversion architecture, making the AD2S83IP a viable functional replacement candidate for the AD2S82AHPZ in resolver interface applications. However, designers must validate supply voltage configuration, resolution/bandwidth programming, and velocity output signal characteristics before committing to a drop-in substitution, as these parameters differ between the two devices and directly affect loop performance and system accuracy.
Package Type
High match
Supply Voltage
Validation required
Resolution and Bandwidth
Validation required
Velocity Output Signal
Validation required
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD2S82AHPZ | AD2S83IP | Why it matters |
|---|---|---|---|
| Resolution (bits) | 10, 12, 14, 16 (selectable) | 10, 12, 14, 16 (selectable) | Resolution determines the angular precision of the resolver-to-digital conversion; both support the same selectable resolutions, so precision capability is equivalent. |
| Package / Mounting | 44-Lead PLCC (surface mount) | 44-Lead PLCC (surface mount) | Package type affects PCB footprint and assembly; identical packages allow drop-in board compatibility. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Temperature range defines the environments where the device can reliably operate; matching ranges indicate equivalent environmental robustness. |
| Supply Voltage | ±5 V (dual supply) | ±5 V (dual supply) | Supply voltage must match the system power rails; identical requirements simplify power design and substitution. |
| Input Signal Type | Resolver (sin/cos) | Resolver (sin/cos) | The input signal type determines sensor compatibility; both accept resolver sin/cos inputs, ensuring functional interchangeability. |
| Tracking Rate | Up to 1040 rps (16-bit) | Up to 1040 rps (16-bit) | Tracking rate limits the maximum rotational speed the converter can follow; equal rates mean equivalent dynamic performance. |
| Velocity Output | Analog velocity signal available | Analog velocity signal available | Velocity output enables speed control loops; both providing analog velocity output supports similar system architectures. |
| Data Interface | Parallel binary output | Parallel binary output | The output interface must match the host processor; identical parallel binary outputs allow direct substitution without interface changes. |
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 | AD2S82AHPZ | AD2S83IP |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Type | R/D Converter | R/D Converter |
| Input Type | - | Parallel |
| Output Type | - | Digital |
| Supply Current | - | 30 mA |
| Operating Temperature | 0°C ~ 70°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Number of Channels | 2 | - |
| Resolution(Bits) | 10, 12, 14, 16 b | - |
| Data Interface | Parallel | - |
| Voltage Supply Source | Dual ± | - |
| Voltage - Supply | ±10.8V ~ 13.2V | - |
Frequently asked questions
What are the primary functional differences between the AD2S82AHPZ and the AD2S83IP?
The AD2S82AHPZ is a variable resolution, monolithic resolver-to-digital converter (RDC) that offers selectable resolution of 10, 12, 14, or 16 bits. The AD2S83IP is a variable resolution, monolithic resolver-to-digital converter that also provides selectable resolution of 10, 12, 14, or 16 bits. Both devices are functionally similar, but the AD2S82AHPZ is specified for operation over the commercial temperature range (0°C to +70°C) in a 44-lead PQFP package, while the AD2S83IP is specified for the industrial temperature range (-40°C to +85°C) in a 44-lead PLCC package.
Are the AD2S82AHPZ and AD2S83IP pin-compatible or package-compatible?
No. The AD2S82AHPZ is supplied in a 44-lead PQFP (plastic quad flat pack), while the AD2S83IP is supplied in a 44-lead PLCC (plastic leaded chip carrier). These are different package types with different footprints, lead pitches, and PCB land patterns, so they are not drop-in replacements for each other without a board redesign.
Can the AD2S82AHPZ and AD2S83IP be used interchangeably in a design?
Not directly. Although both are resolver-to-digital converters with selectable 10/12/14/16-bit resolution, they differ in package type and specified operating temperature range. The AD2S82AHPZ is rated for 0°C to +70°C, while the AD2S83IP is rated for -40°C to +85°C. Interchangeability requires verifying that the package footprint, thermal requirements, and all electrical specifications meet the target application's needs.
What is the resolution range of the AD2S82AHPZ and AD2S83IP?
Both the AD2S82AHPZ and the AD2S83IP are variable-resolution resolver-to-digital converters that support selectable resolutions of 10, 12, 14, or 16 bits. The resolution is typically selected via external pin programming or logic inputs, allowing the designer to trade off resolution against conversion time and tracking rate.
What are the operating temperature ranges for the AD2S82AHPZ and AD2S83IP?
The AD2S82AHPZ is specified for the commercial temperature range of 0°C to +70°C. The AD2S83IP is specified for the industrial temperature range of -40°C to +85°C. This difference is critical when selecting a device for applications exposed to harsh or wide-temperature environments.
Do the AD2S82AHPZ and AD2S83IP require external components for operation?
Yes. Both devices require external components for proper operation, including a reference oscillator/carrier generator, signal conditioning components for the resolver inputs (such as buffers and filters), and loop compensation components for the type II tracking loop. The exact values depend on the selected resolution, bandwidth, and reference frequency. Designers should consult the respective manufacturer datasheets for the recommended external component values and configurations.
What is the maximum tracking rate of the AD2S82AHPZ and AD2S83IP?
The maximum tracking rate depends on the selected resolution and the reference frequency. Both the AD2S82AHPZ and AD2S83IP are specified with tracking rates that vary by resolution setting. For example, at 10-bit resolution, the tracking rate is higher than at 16-bit resolution. The exact tracking rate specifications are provided in the manufacturer datasheets and must be verified for the specific operating conditions and resolution selected.
Are the AD2S82AHPZ and AD2S83IP still in production or are they obsolete?
Both the AD2S82AHPZ and AD2S83IP are legacy products from Analog Devices. Their production status can change over time. Designers should verify the current lifecycle status, availability, and any recommended replacement parts directly with Analog Devices or authorized distributors such as DigiKey, Mouser, or TTI before committing to a design.