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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.
AD2S1205 Maximum Ratings
Resolution (Bits)
12bit
Package
44LQFP
Max Track Rate (+/- rps)
1250
Accuracy (arcmin)
22/11
Temp_Range (C)
-40 to +125
Ref Freq (Hz)
10k-20k
Vel o/p
Yes
Vel Lnrty (+/- FSR max)
2lsb
Power (mW)
50mW
Interface
Parallel/Serial
Encoder Emulation
Yes
Supplies (V)
+5V
AD2S1205 Features
·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 ·4 kV ESD protection
AD2S1205 Typical Application
·Automotive motion sensing and control ·Hybrid-electric vehicles ·Electric power steering ·Integrated starter generator/alternator ·Industrial motor control ·Process control