Part A
AD2S1210DSTZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4220 PCS
- Package
- LQFP-48
- Series
- Acquisição de dados - ADCs-DACs - Objetivo Especial
Replacement verdict
Compatible functional replacement candidate
The AD2S1210DSTZ and AD2S1200YST are both complete 12-bit resolution resolver-to-digital converters from Analog Devices with integrated sinusoidal oscillator excitation, offering strong architectural and functional alignment. However, they differ in maximum tracking rate, excitation frequency range, and supply voltage configuration, so the AD2S1210DSTZ can serve as a functional replacement candidate for the AD2S1200YST only after validating these parameters against the target application requirements.
Resolution
High match
Maximum Tracking Rate
Validation required
Excitation Frequency Range
Validation required
Supply Voltage Configuration
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 | AD2S1210DSTZ | AD2S1200YST | Why it matters |
|---|---|---|---|
| Resolution | 10/12/14/16 bit (user selectable) | 12 bit | Higher selectable resolution improves angular accuracy and allows the same part to serve multiple precision requirements. |
| Input Signal Type | Sin/Cos differential inputs (resolver) | Sin/Cos differential inputs (resolver) | Both accept resolver sin/cos signals, but the AD2S1210 supports a wider range of resolver transformation ratios and excitation frequencies. |
| Excitation Frequency Range | 2 kHz to 20 kHz | 10 kHz to 20 kHz | A wider excitation frequency range provides greater flexibility in matching different resolver types and system noise environments. |
| Maximum Tracking Rate | Up to 3125 rps (depends on resolution) | Up to 1000 rps | Higher tracking rate supports faster rotating machinery without losing position lock. |
| Supply Voltage | 5 V ± 5% (AVDD/DVDD) | 5 V ± 5% | Identical supply requirements simplify power supply design and allow drop-in compatibility in existing 5 V systems. |
| Interface | SPI (serial) and parallel | SPI (serial) and parallel | Both offer serial and parallel interfaces, but the AD2S1210 provides additional configuration registers and fault detection outputs. |
| Package | 48-lead LQFP (7x7 mm) | 44-lead LQFP (10x10 mm) | Different package footprints require PCB layout changes; the smaller AD2S1210 package saves board space. |
| Operating Temperature Range | -40°C to +125°C | -40°C to +85°C | Extended temperature range makes the AD2S1210 suitable for harsher industrial and automotive environments. |
| Fault Detection | Built-in fault detection (LOS, DOS, LOT, DOT) | Limited fault detection | Comprehensive fault detection improves system reliability and enables safer operation in safety-critical applications. |
| Velocity Output | Digital velocity output available | Digital velocity output available | Both provide velocity data, but the AD2S1210 offers higher resolution velocity output for precise motion control. |
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 | AD2S1210DSTZ | 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 AD2S1210DSTZ and AD2S1200YST?
The AD2S1210DSTZ and AD2S1200YST are both resolver-to-digital converters (RDCs) from Analog Devices. The AD2S1210DSTZ is a 10-bit to 16-bit resolution tracking RDC with on-chip programmable excitation frequency and fault detection. The AD2S1200YST is a 12-bit resolution tracking RDC with an on-chip reference oscillator and parallel interface.
What is the resolution difference between the AD2S1210DSTZ and AD2S1200YST?
The AD2S1210DSTZ offers selectable resolution of 10, 12, 14, or 16 bits. The AD2S1200YST provides a fixed 12-bit resolution. Therefore, the AD2S1210DSTZ supports higher precision applications up to 16 bits, while the AD2S1200YST is limited to 12 bits.
Do the AD2S1210DSTZ and AD2S1200YST have different output interfaces?
Yes. The AD2S1210DSTZ provides a parallel interface and also supports serial interface options depending on configuration. The AD2S1200YST provides a parallel interface only. The AD2S1210DSTZ also includes additional features such as fault detection and programmable excitation frequency.
Are the AD2S1210DSTZ and AD2S1200YST pin-compatible or package-compatible?
No. The AD2S1210DSTZ is available in a 48-lead LQFP package (7 mm x 7 mm). The AD2S1200YST is available in a 44-lead LQFP package (10 mm x 10 mm). They have different pin counts and package dimensions, so they are not pin-to-pin or package-compatible.
Can the AD2S1210DSTZ directly replace the AD2S1200YST in an existing design?
No. Due to differences in resolution, package size, pin count, and feature set, the AD2S1210DSTZ cannot directly replace the AD2S1200YST without redesigning the PCB, updating the interface logic, and validating the system for the new resolution and configuration options.
What are the operating temperature ranges for the AD2S1210DSTZ and AD2S1200YST?
Both the AD2S1210DSTZ and AD2S1200YST are specified for the industrial temperature range of −40°C to +125°C (junction temperature). Always refer to the latest official datasheets for exact operating and storage temperature specifications.
Do both the AD2S1210DSTZ and AD2S1200YST include on-chip excitation frequency generation?
Yes. The AD2S1210DSTZ includes a programmable on-chip excitation frequency generator. The AD2S1200YST also includes an on-chip reference oscillator for excitation. However, the AD2S1210DSTZ allows the excitation frequency to be programmed, while the AD2S1200YST has a fixed excitation frequency.
Which part is better suited for high-precision motor control applications?
The AD2S1210DSTZ is better suited for high-precision motor control because it supports up to 16-bit resolution, programmable excitation frequency, and integrated fault detection. The AD2S1200YST, with fixed 12-bit resolution, is suitable for lower-precision or cost-sensitive applications.