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Data Sheet 27627.114a
ATS640JSB
TRUE ZERO-SPEED, SELF-CALIBRATING, DIFFERENTIAL HALL-EFFECT GEAR-TOOTH SENSOR IC
FOR TWO-WIRE APPLICATIONS
The ATS640JSB Hall-effect gear-tooth sensor IC is a peak detecting device
1 2
that uses internal gain control to provide extremely stable duty cycles down to
3 zero speed. Each device consists of a high-temperature plastic shell
4 that holds together a samarium-cobalt pellet, a pole piece, and a true zero-
DUCTPin 1 = Supply O HPin 2 = Current Output
SPin 3 = No Connection
RPin 4 = Ground
Dwg. AH-006-3A
D P 645LPRELIMINARY INFORMATION
S(subject to change without notice)
UE ATAugust 28, 2002
speed BiCMOS differential Hall-effect gear-tooth sensor IC that has been optimized to the magnetic circuit.