AD2S83
REV. E
–18–
APPLICATIONS
Control Transformer
The ratio multiplier of the AD2S83 can be used independently
of the loop integrators as a control transformer. In this mode,
the resolver inputs θ are multiplied by a digital angle φ, any
difference between φ and θ will be represented by the AC
ERROR output as Sin ωt sin (θ–φ) or the DEMOD output
as sin (θ–φ). To use the AD2S83 in this mode refer to the
“Control Transformer” application note.
OTHER PRODUCT
AD2S90. Low-cost resolver-to-digital converter with outputs
which emulate optical encoders and a serial output for absolute
position information. Unlike the AD2S83, the AD2S90 requires
no external components to operate. The AD2S90 is built on
LC
2
MOS and packaged in a 20-lead PLCC.
AD2S80A/AD2S81A/AD2S82A. Monolithic resolver-to-digital
converter. The AD2S80/AD2S82A offer selectable 10, 12, 14,
16 bits of resolution. The AD2S81A has 12-bit resolution. All
devices have user selectable dynamics. The AD2S80A is available
in 40-lead DDIP, 44-lead LCC and is qualified to MIL-STD-
883B REV. E. The is available in a 44-lead PLCC, and the
AD2S81A in a 28-lead DDIP.
