Part A
AD2S1210ASTZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3827 PCS
- Package
- LQFP-48
- Series
- Acquisição de dados - ADCs-DACs - Objetivo Especial
Replacement verdict
Compatible functional replacement candidate
The AD2S1210DSTZ and AD2S1210ASTZ are functionally equivalent resolver-to-digital converters sharing identical core specifications, with the primary distinction being the package type. The AD2S1210DSTZ is a drop-in functional replacement candidate for the AD2S1210ASTZ, provided the PCB footprint is verified for the respective package.
Resolution
High match
Input Signal Type
High match
Supply Voltage
High match
Package Type
Validation required
Parts at a glance
Part B
AD2S1210DSTZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4220 PCS
- Package
- LQFP-48
- 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 | AD2S1210DSTZ | AD2S1210ASTZ | Why it matters |
|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Identical manufacturer ensures consistent design, documentation, and quality standards. |
| Product Category | Resolver to Digital Converter | Resolver to Digital Converter | Same functional category confirms both parts serve the same core application. |
| Resolution | 10/12/14/16 bit selectable | 10/12/14/16 bit selectable | Matching resolution options allow identical position feedback accuracy in the target system. |
| Input Voltage Range | 4.75 V to 5.25 V | 4.75 V to 5.25 V | Same supply range means the same power design can be reused without modification. |
| Operating Temperature Range | -40°C to +125°C | -40°C to +125°C | Identical temperature ratings ensure both parts suit the same environmental conditions. |
| Package / Case | 48-LQFP (7x7) | 48-LQFP (7x7) | Same package footprint allows drop-in PCB compatibility without layout changes. |
| Mounting Type | Surface Mount | Surface Mount | Identical mounting method ensures the same assembly process can be used. |
| Interface Type | SPI / Parallel | SPI / Parallel | Same host interface options preserve firmware and communication compatibility. |
| Packaging | Tray | Tray | Same packaging simplifies inventory handling and automated assembly feeding. |
| RoHS Status | RoHS Compliant | RoHS Compliant | Both meet the same environmental compliance requirements for global markets. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD2S1210ASTZ | AD2S1210DSTZ |
|---|---|---|
| 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 | Serial, Parallel | Serial, Parallel |
| Voltage Supply Source | Analog and Digital | Analog and Digital |
| Voltage - Supply | 4.75V ~ 5.25V | 4.75V ~ 5.25V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the key differences between the AD2S1210DSTZ and AD2S1210ASTZ?
The AD2S1210DSTZ and AD2S1210ASTZ are both variable resolution resolver-to-digital converters from Analog Devices. The primary difference is the operating temperature range: the AD2S1210DSTZ is specified for the industrial temperature range of −40°C to +85°C, while the AD2S1210ASTZ is specified for the automotive temperature range of −40°C to +125°C. Both devices are functionally identical and are supplied in a 48-lead LQFP package.
Are the AD2S1210DSTZ and AD2S1210ASTZ pin-compatible and functionally interchangeable?
Yes. Both devices share the same 48-lead LQFP package, pinout, and functional architecture. They are interchangeable in terms of footprint and electrical function, provided the application's operating temperature requirements are satisfied by the selected grade.
What is the resolution of the AD2S1210DSTZ and AD2S1210ASTZ?
Both devices offer selectable resolution of 10, 12, 14, or 16 bits, programmable via the configuration registers. This allows the user to optimize the trade-off between resolution and tracking loop bandwidth for the specific application.
What is the maximum tracking rate of the AD2S1210DSTZ and AD2S1210ASTZ?
The maximum tracking rate depends on the selected resolution. At 10-bit resolution, the maximum tracking rate is 3125 rps; at 12-bit resolution, it is 1250 rps; at 14-bit resolution, it is 625 rps; and at 16-bit resolution, it is 156.25 rps. These values are specified in the Analog Devices datasheet.
What is the input signal range for the resolver inputs on the AD2S1210DSTZ and AD2S1210ASTZ?
Both devices accept differential resolver signals with a nominal amplitude of 3.15 V p-p ± 27% on the SIN and COS inputs, and a reference input of 3.6 V p-p ± 10%. The excitation frequency range is 2 kHz to 20 kHz.
What is the power supply requirement for the AD2S1210DSTZ and AD2S1210ASTZ?
Both devices operate from a single 5 V ± 5% analog supply (AVDD) and a 2.3 V to 5.25 V digital supply (DVDD). The typical power consumption is 150 mW with a 5 V supply.
What interface does the AD2S1210DSTZ and AD2S1210ASTZ provide for data output?
Both devices provide a parallel interface (8-bit or 16-bit) and a serial interface (SPI-compatible) for configuration and data readback. The parallel interface supports direct connection to a host processor or DSP.
Are the AD2S1210DSTZ and AD2S1210ASTZ qualified for automotive applications?
The AD2S1210ASTZ is specified for the automotive temperature range of −40°C to +125°C and is suitable for automotive applications. The AD2S1210DSTZ is specified for the industrial temperature range of −40°C to +85°C. Neither device is AEC-Q100 qualified according to publicly available Analog Devices documentation.