AD2S1205

PRODUCTION

12-Bit R/D Converter with Reference Oscillator

Data Sheet (Rev. A) Product Selection Table

Part Models: 5
1ku List Price: Starting From $12.31

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Overview

Complete monolithic resolver-to-digital converter (RDC)
Parallel and serial 12-bit data ports
System fault detection
±11 arc minutes of accuracy
Input signal range: 3.15 V_P-P ± 27%
Absolute position and velocity outputs

1250 rps maximum tracking rate, 12-bit resolution
Incremental encoder emulation (1024 pulses/rev)
Programmable sinusoidal oscillator on board
Single-supply operation (5.00 V ± 5%)
−40°C to +125°C temperature rating
44-lead LQFP

The AD2S1205 is a complete 12-bit resolution tracking resolver-to-digital converter that contains an on-board programmable sinusoidal oscillator providing sine wave excitation for resolvers.

The converter accepts 3.15 V_P-P ± 27% input signals on the Sin and Cos inputs. A Type II tracking loop is employed to track the inputs and convert the input Sin and Cos information into a digital representation of the input angle and velocity. The maximum tracking rate is a function of the external clock frequency. The performance of the AD2S105 is specified across a frequency range of 8.192 MHz ± 25%, allowing a maximum tracking rate of 1250 rps.

PRODUCT HIGHLIGHTS

Ratiometric Tracking Conversion. The Type II tracking loop provides continuous output position data without conversion delay. It also provides noise immunity and tolerance of harmonic distortion on the reference and input signals.
System Fault Detection. A fault detection circuit can sense loss of resolver signals, out-of-range input signals, input signal mismatch, or loss of position tracking.
Input Signal Range. The Sin and Cos inputs can accept differential input voltages of 3.15 V_P-P ± 27%.
Programmable Excitation Frequency. Excitation frequency is easily programmable to 10 kHz, 12 kHz, 15 kHz, or 20 kHz by using the frequency select pins (the FS1 and FS2 pins).
Triple Format Position Data. Absolute 12-bit angular position data is accessed via either a 12-bit parallel port or a 3-wire serial interface. Incremental encoder emulation is in standard A-quad-B format with direction output available.
Digital Velocity Output. 12-bit signed digital velocity accessed via either a 12-bit parallel port or a 3-wire serial interface.

APPLICATIONS

Automotive motion sensing and control
Hybrid-electric vehicles
Electric power steering
Integrated starter generator/alternator
Industrial motor control
Process control

Part Models: 5
1ku List Price: Starting From $12.31

Documentation

Data Sheet 1

AD2S1205: 12-Bit RDC with Reference Oscillator Data Sheet (Rev.A) 05/26/2010

User Guide 1

UG-365: Evaluation Board for the AD2S1200/AD2S1205 Resolver-to-Digital Converters 02/14/2015

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
AD2S1205WSTZ	44-Lead LQFP (10mm x 10mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD2S1205YSTZ	44-Lead LQFP (10mm x 10mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADW71205WSTZ-RL	44-Lead LQFP (10mm x 10mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADW71205YSTZ	44-Lead LQFP (10mm x 10mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADW71205YSTZ-RL	44-Lead LQFP (10mm x 10mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

May 20, 2024 - 23_0143 Qualification of an Alternate Wafer Fab Site for 0.5um TSMC CMOS Process
		PCN23_0143_Form Material_Report Detailed Change Description Delta Qualification Matrix Qualification Results Summary
AD2S1205WSTZ	PRODUCTION
AD2S1205YSTZ	PRODUCTION
ADW71205WSTZ-RL	PRODUCTION
ADW71205YSTZ	PRODUCTION
ADW71205YSTZ-RL	PRODUCTION
Oct 18, 2016 - 16_0034 Assembly Relocation of Select LQFP,LQFP_EP,MQFP,TQFP,TQFP_EP Products to Stats ChipPAC China Jiangyin
		PCN16_0034_Form Material_Report Qualification Results Summary Qualification Results Summary Qualification Results Summary
AD2S1205WSTZ	PRODUCTION
AD2S1205YSTZ	PRODUCTION
ADW71205WSTZ-RL	PRODUCTION
ADW71205YSTZ	PRODUCTION
ADW71205YSTZ-RL	PRODUCTION
Jan 5, 2009 - 07_0077 Certification of STATSChipPAC Shanghai, China and AMKOR Philippines as additional sources for Assembly & Test of QFP Packages
		07_0077Rev D_LQFP_Dec17 07_0077Rev D_MQFP_Dec15 07_0077Rev D_Obsolesence_Dec15 07_0077Rev D_TQFP_Dec15 Material_Report PCN07_0077_Form QFP Transfer Qualification Results-tests_DEC12CL
AD2S1205WSTZ	PRODUCTION
AD2S1205YSTZ	PRODUCTION
ADW71205WSTZ-RL	PRODUCTION
ADW71205YSTZ	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

Device Drivers 1

AD2S1200 IIO Resolver-to-Digital Converter GitHub Linux Driver Source Code

Can't find the software or driver you need?

Evaluation Kits

AD2S1205 Evaluation kit

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Product Details

The EVAL-AD2S1205SDZ is a fully featured evaluation kit for the AD2S1205. This board operates in stand alone mode or in conjunction with the System Development Platform, EVAL-SDP-CB1Z . When operated with the System Development Platform software is provided enabling the user to perform detailed analysis of the ADC's performance. This software includes the technical note describing the operation and set up of the evaluation board in standalone operation or when operated with the System Development Platform . When operated in standalone mode the ADZS-BRKOUT-EX3 break out board is recommended for access to various control pins.