Part A
AD2S82AHPZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 3292 個数
- Package
- LCC-44
- Series
- データ取得 - ADC/DAC - 特殊用途向け
Replacement verdict
Compatible functional replacement candidate
The AD2S83APZ and AD2S82AHPZ are functionally compatible resolver-to-digital converters sharing the same core architecture, input characteristics, and output interface. Both devices are drop-in replacements for each other in most applications, with the primary distinction being the specified temperature grade. Designers should verify that the operating temperature requirements of their application are satisfied by the chosen variant.
Resolution
High match
Input Signal Type
High match
Output Interface
High match
Operating Temperature Range
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 | AD2S83APZ | AD2S82AHPZ | 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. |
| Input Signal Type | Resolver (sine/cosine) | Resolver (sine/cosine) | Both devices interface with resolver sensors, so the input signal type must match the transducer used in the system. |
| Tracking Rate (max) | 1040 rps | 1040 rps | Maximum tracking rate defines the highest rotational speed the converter can follow without losing lock, critical for high-speed motor control. |
| Supply Voltage | ±5 V, ±12 V | ±5 V, ±12 V | Supply voltage must match the system power rails; mismatched supplies would require additional regulation or redesign. |
| Package / Mounting | 44-Lead PLCC | 44-Lead PLCC | Package and mounting type determine PCB footprint and assembly compatibility for drop-in substitution. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Temperature range affects reliability in industrial and automotive environments where extremes are common. |
| Output Interface | Parallel binary | Parallel binary | Output format must be compatible with the host processor or controller to avoid additional conversion logic. |
| Velocity Output | Analog velocity signal | Analog velocity signal | Analog velocity output enables closed-loop speed control without separate tachometer hardware. |
| Reference Frequency Range | 1 kHz to 20 kHz | 1 kHz to 20 kHz | Reference frequency must match the resolver excitation to ensure proper demodulation and tracking. |
| Manufacturer | Analog Devices | Analog Devices | Same manufacturer ensures consistent quality, documentation, and support for both parts. |
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 | AD2S83APZ |
|---|---|---|
| Part Status | Active | Active |
| 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 ± | Analog and Digital, Dual ± |
| Voltage - Supply | ±10.8V ~ 13.2V | ±12V, 5V |
| Operating Temperature | 0°C ~ 70°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the AD2S83APZ and AD2S82AHPZ?
The AD2S83APZ and AD2S82AHPZ are variable resolution, monolithic resolver-to-digital converters (RDCs) from Analog Devices. They convert resolver signals into digital angular position and velocity outputs for motion control and servo systems.
What is the difference between the AD2S83APZ and AD2S82AHPZ?
The AD2S83APZ is specified for operation over the commercial temperature range of 0°C to +70°C, while the AD2S82AHPZ is specified over the industrial temperature range of -40°C to +85°C. Both are functionally equivalent RDCs with the same resolution and accuracy specifications, but the AD2S82AHPZ is rated for wider ambient temperature operation.
Are the AD2S83APZ and AD2S82AHPZ pin-compatible?
Yes. Both devices are offered in the same 44-terminal plastic leaded chip carrier (PLCC) package and share the same pinout, allowing the AD2S82AHPZ to be used in place of the AD2S83APZ when industrial temperature range operation is required, provided the application circuit meets the AD2S82AHPZ specifications.
What resolution do the AD2S83APZ and AD2S82AHPZ provide?
Both devices provide selectable resolution of 10, 12, 14, or 16 bits. The resolution is set by external logic inputs, allowing the user to trade off resolution against conversion time and velocity output scaling.
What is the accuracy specification of the AD2S83APZ and AD2S82AHPZ?
Both devices offer angular accuracy of ±8 arc minutes at 12-bit resolution and ±2.5 arc minutes at 16-bit resolution, as specified in the Analog Devices datasheet. Accuracy is guaranteed over the respective operating temperature range of each grade.
Can the AD2S83APZ and AD2S82AHPZ be used interchangeably in an existing design?
In many cases yes, because they are functionally and pin-compatible. However, the AD2S82AHPZ is tested and guaranteed over the industrial temperature range, while the AD2S83APZ is only guaranteed over the commercial range. The substitution is valid only if the application remains within the AD2S83APZ commercial temperature limits or if the wider industrial range of the AD2S82AHPZ is required and the rest of the circuit supports it.
What input signal format do the AD2S83APZ and AD2S82AHPZ accept?
Both devices accept resolver format input signals, typically consisting of a sine and cosine pair from a resolver or synchro, along with a reference carrier signal. The reference input is nominally 2 V rms, and the signal inputs are nominally 2 V rms, as specified in the datasheet.
What is the maximum tracking rate of the AD2S83APZ and AD2S82AHPZ?
The maximum tracking rate depends on the selected resolution and the reference frequency. At 12-bit resolution with a 400 Hz reference, the maximum tracking rate is typically 2600 rps. Higher resolution settings reduce the maximum tracking rate. Detailed limits are provided in the Analog Devices datasheet.