Part A
AD2S1210CSTZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2414 PCS
- Package
- LQFP-48
- Series
- Acquisição de dados - ADCs-DACs - Objetivo Especial
Replacement verdict
Compatible functional replacement candidate
The AD2S1210CSTZ and AD2S1200YST are both resolver-to-digital converters from Analog Devices with a 10-bit to 16-bit resolution range and a 44-lead LQFP package, making them functionally related. However, they differ in excitation frequency range, maximum tracking rate, and supply voltage configuration, so the AD2S1210CSTZ is not a direct drop-in replacement for the AD2S1200YST without validating the system's excitation and dynamic requirements.
Resolution
High match
Package Type
High match
Excitation Frequency
Validation required
Supply Voltage
Validation required
Parts at a glance
Part B
AD2S1200YST
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2893 PCS
- Package
- LQFP-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 | AD2S1210CSTZ | AD2S1200YST | Why it matters |
|---|---|---|---|
| Resolution | 10/12/14/16 bit (selectable) | 12 bit | Higher selectable resolution improves angular accuracy and position feedback precision in servo and motor control loops. |
| Input Signal Type | Differential sinusoidal resolver inputs | Differential sinusoidal resolver inputs | Both accept standard resolver signals, but interface conditioning and excitation requirements must match the system. |
| Excitation Frequency Range | 2 kHz to 20 kHz | 10 kHz to 20 kHz | The excitation frequency must match the resolver's rated carrier frequency for correct tracking and demodulation. |
| Supply Voltage | 5 V analog, 3.3 V or 5 V digital | 5 V | Supply compatibility determines whether the device can drop into an existing board without level shifting or regulator changes. |
| Output Interface | Parallel and serial (SPI-compatible) | Parallel and serial | The available digital interface must match the host controller's communication scheme for direct substitutability. |
| Package | 48-lead LQFP | 44-lead LQFP | Different package footprints and pin counts prevent direct drop-in replacement without PCB redesign. |
| Operating Temperature Range | -40°C to +125°C | -40°C to +105°C | Wider temperature range supports harsher industrial and automotive environments. |
| Velocity Output | Yes, digital velocity output | Yes, digital velocity output | Velocity feedback is essential for closed-loop motion control and must be available in the replacement part. |
| Fault Detection | Signal loss, tracking loss, and configuration fault detection | Signal loss and tracking loss detection | Built-in diagnostics improve system safety and reliability by detecting resolver or conversion faults. |
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 | AD2S1210CSTZ | AD2S1200YST |
|---|---|---|
| Supplier | - | 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 | 12 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 ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the primary functional differences between the AD2S1210CSTZ and the AD2S1200YST?
The AD2S1210CSTZ is a complete 10-bit to 16-bit resolution tracking resolver-to-digital converter with on-chip programmable excitation frequency and a parallel/SPI interface. The AD2S1200YST is a 12-bit resolution tracking resolver-to-digital converter with a fixed 10 kHz to 20 kHz excitation frequency range and a parallel interface only. The AD2S1210CSTZ offers higher maximum resolution (16-bit vs. 12-bit) and greater interface flexibility.
Are the AD2S1210CSTZ and AD2S1200YST pin-to-pin compatible?
No. The AD2S1210CSTZ is supplied in a 48-lead LQFP package, while the AD2S1200YST is supplied in a 44-lead LQFP package. The different package sizes and pin counts mean they are not pin-to-pin compatible and require different PCB footprints.
Can the AD2S1200YST be used as a direct drop-in replacement for the AD2S1210CSTZ?
No. Beyond the package and pin count differences, the AD2S1210CSTZ supports selectable resolution up to 16 bits and a programmable excitation frequency, whereas the AD2S1200YST is fixed at 12-bit resolution and a narrower excitation frequency range. A direct drop-in replacement is not possible without redesigning the interface, footprint, and excitation circuitry.
What is the maximum resolution of each device?
The AD2S1210CSTZ provides selectable resolution of 10, 12, 14, or 16 bits. The AD2S1200YST provides 12-bit resolution. The AD2S1210CSTZ therefore supports higher precision position feedback than the AD2S1200YST.
Do both devices support SPI communication?
No. The AD2S1210CSTZ supports both a parallel interface and an SPI-compatible serial interface. The AD2S1200YST provides a parallel interface only. Systems requiring SPI communication must use the AD2S1210CSTZ or an equivalent device with serial support.
How do the excitation frequency capabilities compare between the two devices?
The AD2S1210CSTZ features a programmable on-chip excitation frequency generator with a typical range of 2 kHz to 20 kHz. The AD2S1200YST has a fixed excitation frequency range of 10 kHz to 20 kHz. The AD2S1210CSTZ offers greater flexibility for resolver excitation tuning.
What are the operating temperature ranges for the AD2S1210CSTZ and AD2S1200YST?
Both the AD2S1210CSTZ and the AD2S1200YST are specified for the industrial temperature range of −40°C to +85°C. This makes both devices suitable for industrial motion control and position sensing applications.
Which device is more suitable for high-precision servo motor commutation?
The AD2S1210CSTZ is more suitable for high-precision servo commutation because it offers up to 16-bit resolution and a programmable excitation frequency, enabling finer position feedback and better optimization of the resolver signal chain. The AD2S1200YST, with 12-bit resolution, is better suited to applications with moderate precision requirements.