A1373EKB datasheet(3/22 Pages) ALLEGRO

3 / 22 page

High Precision, Output Pin Programmable

Linear Hall Effect Sensors

A1373 and

A1374

Allegro MicroSystems, Inc.

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

www.allegromicro.com

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max

Units

ELECTRICAL CHARACTERISTICS

over operating temperature range, VCC=5.0 V, unless otherwise noted

Supply Voltage

VCC

Operation within specification,

Tj < 165°C

4.5

5.0

5.5

Supply Current

ICC

–

8.2

Reverse-Supply Current

IRCC

VCC = –16 V, TA = 25°C

–

Power-On Time1

tPO

CLOAD = 10 nF, 90% full scale VOUT

–

300

μs

Chopping Frequency

–

200

–

kHz

Internal Bandwidth

A1373

Small signal -3 dB

–

2.5

–

kHz

A1374

–

kHz

OUTPUT CHARACTERISTICS

over operating temperature range, VCC=5.0 V, unless otherwise noted

Noise2,3

A1373 peak-to-peak, CLOAD > 1 nF,

2.5 mV/G

–

A1374

–

Output Capacitance Load

CLOAD

VOUT pin to GND pin

–

Output Resistive Load

RLOAD

4700

–

Phase Shift

∆Φ

A1373 Magnetic signal freq. = 100 Hz

–

(°)

A1374 Magnetic signal freq. = 1000 Hz

–

(°)

Output Voltage

VOUT(Sat)HIGH

IOUTSINK = 1.2 mA,

B(kG) > (VCC–VOUT(Q)) / Sens (mV/G)

4.65

4.7

–

VOUT(Sat)LOW

IOUTSOURCE = 1.2 mA,

B(kG) < VOUT(Q) / Sens (mV/G)

–

0.2

0.25

Output Resistance

ROUT

–

1.5

–

MAGNETIC CHARACTERISTICS

Magnetic Slew Rate

SLR

V / ms / Sens

–

G/μs

PRE-PROGRAMMING TARGET (Prior to coarse and fine trim)

over operating temperature range, VCC=5.0 V, unless

otherwise noted

Pre-Programming Quiescent

Output Voltage

VOUT(Q)PRE

B = 0 G, TA = 25°C

1.62

1.80

1.98

Pre-Programming Sensitivity

SensPRE

TA = 25°C

1.05

1.31

1.75

mV/G

Pre-Programming Sensitivity

Temperature Coefficient

TCPRE

TA relative to 25°C

–0.016

0.05

0.104

%/°C

INITIAL COARSE PROGRAMMING

over operating temperature range, VCC=5.0 V, unless otherwise noted

Initial Coarse Quiescent Output

Voltage

VOUT(Q)INITLOW TA = 25°C

–

0.55

–

VOUT(Q)INITMID Reference VOUT(Q)PRE

––-

–

VOUT(Q)INITHIGH TA = 25°C

–

3.25

–

Initial Coarse Sensitivity

SensINITLOW

Reference SensPRE

–

mV/G

SensINITMID

TA = 25°C

–

2.8

–

mV/G

SensINITHIGH

TA = 25°C

–

5.5

–

mV/G

CHARACTERISTIC PARAMETERS

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