Dual Output Differential

Speed and Direction Sensor IC

ATS605LSG

3

Allegro MicroSystems, LLC

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

Characteristic

Symbol

Test Conditions

Min.

Max.

Unit

Electrical Characteristics

Supply Voltage

4.0

–

24

V

Reverse Supply Voltage

–18

–

–

V

Under Voltage Lockout

–

–

3.95

V

Reverse Supply Current

–

–

–10

mA

Supply Zener Clamp Voltage

28

–

–

V

Supply Current

–

8.5

13

mA

–

8.5

13

mA

Power-On State Characteristcs

Power-On State

POS

–

High

–

–

–

2

ms

Output Stage for Each Output Pin

Low Output Voltage

–

165

350

mV

Output Zener Clamp Voltage

28

–

–

V

Output Current Limit

30

55

85

mA

Output Leakage Current

–

–

10

μA

Output Rise Time

–

10

–

μs

Output Fall Time

–

0.6

–

μs

DAC Characteristics

Allowable User-Induced Magnetic

–60

–

60

G

Switch Point Characteristics

Minimum Operational Frequency

Allegro® reference target

0

–

–

kHz

Maximum Operational Frequency

Allegro® reference target

–

20

–

kHz

Allegro® reference target, double-bandwidth

option, suffix “-H”

–

40

–

kHz

Analog Signal Bandwidth

Cutoff frequency for low-pass filter

–

20

–

kHz

Cutoff frequency for low-pass filter, double-

bandwidth option

–

40

–

kHz

Operate Point

–

70

–

%

Release Point

–

30

–

%

Lockout Enable

–

250

–

mV

Lockout Release

–

350

–

mV

Continued on the next page…

1

Typical data is at VCC = 12 V and TA = +25°C. Performance may vary for individual units, within the specified maximum and minimum limits.

2

Power-On Time is the time required to complete the internal automatic offset adjust; the registers are then ready for peak acquisition.

3

High speed power-on compliant, however several missing output transitions are possible.

4

1 G (gauss) = 0.1 mT (millitesla).

5

The device compensates for magnetic and installation offsets. Offsets greater than specification in gauss may cause inaccuracies in the output.