GENERAL DESCRIPTION

The AD2S99 programmable sinusoidal oscillator provides sine wave excitation for resolvers and a wide variety of ac transducers. The AD2S99 also provides a synchronous reference output signal (3 V p-p square wave) that is phase locked to its SIN and COS inputs. In an application, the SIN and COS inputs are connected to the transducer’s secondary windings.

FEATURES

Programmable Sinusoidal Oscillator

Synthesized Synchronous Reference Output

Programmable Output Frequency Range: 2 kHz–20 kHz

“Loss-of-Signal” Indicator

20-Pin PLCC Package

Low Cost

APPLICATIONS

Excitation Source for:

Resolvers

Synchros

LVDTs

RVDTs

Pressure Transducers

Load Cells

AC Bridges