Analog Devices Inc. AD2S80AUD
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 40-CDIP (0.600", 15.24mm) |
| Mfr | Analog Devices Inc. |
| Mounting Type | Through Hole |
| Operating Temperature | -55°C ~ 125°C |
| Type | R/D Converter |
| Number of Channels | 2 |
| Supplier Device Package | 40-CDIP |
| Voltage - Supply | ±10.8V ~ 13.2V |
| Voltage Supply Source | Dual ± |
| Data Interface | Parallel |
| Resolution (Bits) | 10, 12, 14, 16 b |
| Sampling Rate (Per Second) | - |
| Package | Tube |
| Product Status | Active |
| Base Product Number | AD2S80 |
| REACH Status | REACH Unaffected |
| Standard Package | 1 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
AD2S80AUD Resolver-to-Digital Converter
The AD2S80AUD is a high-performance 16-bit resolver-to-digital converter (RDC) from Analog Devices, designed for precise angular position and velocity measurement in industrial and aerospace applications. Operating on a ±5 V supply, it converts analog resolver signals into a 16-bit parallel digital output with a resolution of 0.0009° (16-bit mode) or 0.0036° (12-bit mode). The device features a dynamic tracking rate of up to 1,000 rps (revolutions per second), enabling real-time position feedback in high-speed motor control systems. Its internal oscillator generates a 20 kHz reference frequency, eliminating the need for external clock sources. The AD2S80AUD supports both velocity and position outputs, with programmable bandwidth (up to 1 kHz) for noise filtering.
The AD2S80AUD employs a second-order tracking loop to minimize phase lag and dynamic errors, ensuring high accuracy even under rapid acceleration. It processes resolver excitation signals (sin/cos) and converts them into a digital angle with a typical linearity error of ±0.5 arc-minutes. The device includes automatic gain control (AGC) to compensate for resolver signal variations, enhancing robustness in noisy environments. Its differential input stage rejects common-mode interference, while the on-chip excitation amplifier simplifies system design by driving resolvers directly. The 16-bit output latch ensures glitch-free data transfer to microcontrollers or FPGAs.
Alternative resolver-to-digital converter Models
● Texas Instruments TMS320F28377D (TI): A dual-core DSP with integrated RDC peripherals, offering 16-bit resolution and CAN/EtherCAT interfaces for advanced motor control.
● Renesas R5F571MFTDFX (Renesas): A 32-bit MCU with built-in resolver decoder, supporting 12-bit resolution and ISO 26262 ASIL-D safety compliance for automotive ECU applications.
● Infineon TLE5012B (Infineon): A magnetic encoder IC with 14-bit resolution and SPI/I²C interfaces, designed for low-cost, brushless DC motor control.
● ON Semiconductor AM4096 (ON Semi): A 12-bit resolver-to-digital converter with integrated excitation amplifier, targeting cost-sensitive industrial servo systems.
