Part A
AD2S1210CSTZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2414 Stückzahl
- Package
- LQFP-48
- Series
- Datenerfassung von ADCs-DACs für besonderen Zweck
Replacement verdict
Compatible functional replacement candidate
The AD2S1210ASTZ and AD2S1210CSTZ are functionally equivalent resolver-to-digital converters sharing identical core specifications, with the primary distinction being the operating temperature range. The AD2S1210CSTZ supports an extended industrial temperature range, making it suitable for harsher environments, while the AD2S1210ASTZ covers the standard industrial range. Both devices are drop-in compatible in terms of package, pinout, and electrical performance, allowing direct substitution when the application's thermal requirements are satisfied.
Package Type
High match
Pin Configuration
High match
Supply Voltage
High match
Operating Temperature
Validation required
Parts at a glance
Part B
AD2S1210ASTZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3827 Stückzahl
- Package
- LQFP-48
- Series
- Datenerfassung von ADCs-DACs für besonderen Zweck
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD2S1210ASTZ | AD2S1210CSTZ | Why it matters |
|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Same manufacturer ensures consistent design, documentation, and support ecosystem. |
| Product Category | Resolver to Digital Converter | Resolver to Digital Converter | Identical function category confirms both parts serve the same signal conversion role. |
| Resolution | 10/12/14/16 bit selectable | 10/12/14/16 bit selectable | Resolution determines angular position accuracy and directly affects control loop precision. |
| Input Signal Type | Differential resolver signals | Differential resolver signals | Matching input type ensures the device interfaces with the same resolver sensor without extra conditioning. |
| Supply Voltage | 5 V analog, 5 V digital | 5 V analog, 5 V digital | Supply requirements must match the board power rails for direct drop-in compatibility. |
| Interface | SPI / parallel | SPI / parallel | Interface compatibility determines whether the host controller firmware and wiring can be reused. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +125°C | The wider temperature range of the CSTZ variant suits harsher environments such as industrial or automotive applications. |
| Package / Case | 48-LQFP (7x7) | 48-LQFP (7x7) | Package footprint and pinout must match for physical board compatibility and reflow assembly. |
| Grade / Qualification | Industrial grade | Automotive grade | Automotive-qualified parts meet stricter reliability and quality standards required in vehicle systems. |
| Mounting Type | Surface Mount | Surface Mount | Same mounting style allows use of identical PCB assembly processes. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD2S1210CSTZ | AD2S1210ASTZ |
|---|---|---|
| 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 ~ 125°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What is the difference between the AD2S1210ASTZ and the AD2S1210CSTZ?
The AD2S1210ASTZ and AD2S1210CSTZ are both variable resolution, 10-bit to 16-bit R/D converters from Analog Devices. The primary difference is the operating temperature range: the AD2S1210ASTZ is specified for the industrial temperature range of −40°C to +85°C, while the AD2S1210CSTZ is specified for the commercial temperature range of −40°C to +125°C. Both devices are functionally identical and are supplied in the same 48-lead LQFP package.
Are the AD2S1210ASTZ and AD2S1210CSTZ pin-compatible and package-compatible?
Yes. Both the AD2S1210ASTZ and AD2S1210CSTZ are offered in the same 48-lead LQFP (7 mm × 7 mm) package with identical pin assignments. They share the same footprint and pin functions, so they are pin-to-pin and package-compatible.
Can the AD2S1210ASTZ and AD2S1210CSTZ be used interchangeably in a design?
Functionally, both devices provide the same R/D conversion, resolution, and interface features. However, interchangeability depends on the required operating temperature range. The AD2S1210ASTZ supports −40°C to +85°C, while the AD2S1210CSTZ supports −40°C to +125°C. A design requiring operation above +85°C must use the AD2S1210CSTZ; a design limited to +85°C or below can use either device, provided all other specifications are met.
What is the resolution and accuracy of the AD2S1210ASTZ and AD2S1210CSTZ?
Both devices offer selectable resolution from 10 bits to 16 bits. Accuracy is specified as ±2.5 arc minutes maximum for 12-bit resolution and ±1 arc minute typical for 16-bit resolution, per the Analog Devices AD2S1210 datasheet. These specifications apply to both the A and C temperature grade versions.
What is the maximum tracking rate of the AD2S1210ASTZ and AD2S1210CSTZ?
Both devices support a maximum tracking rate that depends on the selected resolution. Per the AD2S1210 datasheet, the maximum tracking rate is 3125 rps at 10-bit resolution, 1562.5 rps at 12-bit resolution, 781.25 rps at 14-bit resolution, and 390.625 rps at 16-bit resolution. These limits apply to both the AD2S1210ASTZ and AD2S1210CSTZ.
Do the AD2S1210ASTZ and AD2S1210CSTZ have the same supply voltage and power requirements?
Yes. Both devices operate from a 5 V ±5% analog supply (AVDD) and a 5 V ±5% digital supply (DVDD), with a separate 2.3 V to 5.25 V logic interface supply (VDRIVE). Typical power consumption is 150 mW. These supply and power specifications are identical for the AD2S1210ASTZ and AD2S1210CSTZ.
Which temperature grade should be selected for an automotive or high-temperature industrial application?
For applications requiring operation above +85°C, the AD2S1210CSTZ should be selected because it is specified over the −40°C to +125°C temperature range. The AD2S1210ASTZ is limited to −40°C to +85°C and is not specified for operation above +85°C. Designers should verify the actual maximum ambient or junction temperature of the target application against the selected grade's limits.
Are the AD2S1210ASTZ and AD2S1210CSTZ RoHS compliant?
Both the AD2S1210ASTZ and AD2S1210CSTZ are RoHS-compliant parts, as indicated by the "Z" suffix in the ordering code, which denotes a lead-free, RoHS-compliant package finish per Analog Devices ordering guide. Designers should confirm compliance status on the manufacturer's official product page or the distributor's environmental documentation for the specific lot.