Part A
AD2S82ALPZ
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 4431 PCS
- Package
- LCC-44
- Series
- Acquisition de données - ADC DAC - dédié
Replacement verdict
Compatible functional replacement candidate
The AD2S82ALPZ and AD2S82AHP are functionally equivalent resolver-to-digital converters from the same Analog Devices AD2S82A series, sharing identical resolution, input signal compatibility, and output interface characteristics. The primary distinction lies in the operating temperature grade, with the AD2S82ALPZ rated for commercial temperature ranges and the AD2S82AHP rated for industrial temperature ranges. For applications operating within the commercial temperature envelope, the AD2S82ALPZ serves as a viable functional substitute for the AD2S82AHP, provided the thermal environment is validated against the narrower temperature specification.
Resolution
High match
Output Type
High match
Operating Temperature
Validation required
Package Type
High match
Parts at a glance
Part B
AD2S82AHP
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 771 PCS
- Package
- LCC-44
- Series
- Acquisition de données - ADC DAC - dédié
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD2S82ALPZ | AD2S82AHP | Why it matters |
|---|---|---|---|
| Operating Temperature Range | 0°C to +70°C | -55°C to +125°C | Determines the environments in which the resolver-to-digital converter can reliably operate; the industrial-grade L version suits commercial/industrial use, while the H version supports military/aerospace temperature extremes. |
| Package / Case | 44-Lead PLCC (P-44A) | 44-Lead PLCC (P-44A) | The physical footprint and mounting style must match the target PCB; both share the same PLCC footprint, but the temperature-grade suffix distinguishes the parts. |
| Temperature Grade | Commercial/Industrial (L) | Military/High-Reliability (H) | Grade suffix indicates screening, testing, and reliability level; H-grade parts are screened for wider temperature and higher reliability applications. |
| Resolution | 10-bit / 12-bit / 14-bit / 16-bit (selectable) | 10-bit / 12-bit / 14-bit / 16-bit (selectable) | Resolution determines angular measurement precision; both devices offer the same selectable resolution options, so functional substitutability is preserved. |
| Input Signal Type | Resolver (sin/cos) | Resolver (sin/cos) | Defines the sensor interface; both accept standard resolver signals, ensuring interchangeability in resolver-based motion control systems. |
| Supply Voltage | ±5 V (analog), +5 V (digital) | ±5 V (analog), +5 V (digital) | Power supply requirements must match the system rails; identical supplies allow drop-in replacement without power redesign. |
| Tracking Rate | Up to 1040 rps (16-bit) | Up to 1040 rps (16-bit) | Maximum tracking rate limits how fast the resolver can rotate while maintaining accurate conversion; identical rates ensure equivalent dynamic performance. |
| Velocity Output | Analog velocity signal available | Analog velocity signal available | Velocity output enables closed-loop speed control; both provide this feature, supporting equivalent system architectures. |
| Data Interface | Parallel binary (natural binary) | Parallel binary (natural binary) | Output format must match the host processor or encoder interface; identical parallel binary output ensures direct compatibility. |
| Manufacturer | Analog Devices | Analog Devices | Same manufacturer ensures consistent quality, documentation, and support; both are part of the AD2S82A series. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD2S82ALPZ | AD2S82AHP |
|---|---|---|
| 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 | Dual ± | Dual ± |
| Voltage - Supply | ±10.8V ~ 13.2V | ±10.8V ~ 13.2V |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the AD2S82ALPZ and AD2S82AHP?
The AD2S82ALPZ and AD2S82AHP are both variable resolution, monolithic resolver-to-digital (R/D) converters from Analog Devices. They convert resolver signals into digital angle and velocity outputs. The AD2S82ALPZ is specified for operation over the commercial temperature range of 0°C to +70°C, while the AD2S82AHP is specified for the industrial temperature range of -40°C to +85°C.
What is the primary difference between the AD2S82ALPZ and AD2S82AHP?
The primary difference is the operating temperature range. The AD2S82ALPZ is rated for 0°C to +70°C (commercial), and the AD2S82AHP is rated for -40°C to +85°C (industrial). Both are functionally identical R/D converters with the same resolution, accuracy, and dynamic performance specifications when operated within their respective temperature ranges.
Are the AD2S82ALPZ and AD2S82AHP pin-compatible and package-compatible?
Yes. Both devices are offered in the same 44-lead PLCC (Plastic Leaded Chip Carrier) package. The pinout and package dimensions are identical, so they are pin-compatible and package-compatible. The only difference is the temperature grade marking and the corresponding operating temperature specification.
Can the AD2S82ALPZ and AD2S82AHP be used interchangeably in a design?
They can be used interchangeably only if the application's operating temperature range is within 0°C to +70°C. If the application requires operation below 0°C or above +70°C, the AD2S82AHP must be used. The AD2S82ALPZ must not be used outside its rated temperature range, as performance and reliability are not guaranteed.
What is the resolution and accuracy of the AD2S82ALPZ and AD2S82AHP?
Both devices offer variable resolution of 10, 12, 14, or 16 bits, selectable by the user. The accuracy is typically specified as ±8 arc minutes for 12-bit resolution and ±2.5 arc minutes for 16-bit resolution, depending on the resolution selected and the external components used. These specifications are identical for both temperature grades.
What are the input signal requirements for the AD2S82ALPZ and AD2S82AHP?
Both devices accept resolver signals with a carrier frequency range of 1 kHz to 20 kHz. The input signal amplitude is typically 2 V rms ±10% for the sine and cosine inputs, with a reference input of 2 V rms. The input impedance and signal conditioning requirements are the same for both temperature grades.
What are the power supply requirements for the AD2S82ALPZ and AD2S82AHP?
Both devices require dual power supplies of +15 V and -15 V, and a +5 V logic supply. The typical current consumption is 15 mA from the +15 V supply, 15 mA from the -15 V supply, and 10 mA from the +5 V supply. These power supply requirements are identical for both the AD2S82ALPZ and AD2S82AHP.
What are the typical applications for the AD2S82ALPZ and AD2S82AHP?
Typical applications include industrial motor control, robotics, CNC machine tools, antenna positioning, and any system requiring precise angular position and velocity feedback from a resolver. The AD2S82AHP is preferred for industrial and automotive applications where wider temperature ranges are required, while the AD2S82ALPZ is suitable for commercial and laboratory environments.