A1374 View Datasheet(PDF) - Allegro MicroSystems

Part Name

Description

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A1374

High Precision, Output Pin Programmable Linear Hall Effect Sensors

Allegro MicroSystems 

A1373 and

A1374

High Precision, Output Pin Programmable

Linear Hall Effect Sensors

CHARACTERISTIC PARAMETERS

Characteristic

Symbol

Test Conditions

Min.

Typ.

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

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

–

–

Chopping Frequency

Internal Bandwidth

fC

A1373

BW

Small signal -3 dB

A1374

–

200

–

2.5

–

20

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

Noise2,3

VN

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

–

A1374 2.5 mV/G

–

6

14

Output Capacitance Load

CLOAD

VOUT pin to GND pin

–

–

Output Resistive Load

RLOAD

4700

–

Phase Shift

A1373 Magnetic signal freq. = 100 Hz –

3

∆Φ

A1374 Magnetic signal freq. = 1000 Hz –

3

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

Output Resistance

ROUT

–

1.5

MAGNETIC CHARACTERISTICS

Max

5.5

10

16

300

–

–

–

16

26

10

–

–

–

–

0.25

–

Units

V

mA

mA

μs

kHz

kHz

kHz

mV

mV

nF

Ω

(°)

(°)

V

V

Ω

Magnetic Slew Rate

SLR

V / ms / Sens

–

20

–

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

Pre-Programming Sensitivity

Temperature Coefficient

SensPRE

TCPRE

TA = 25°C

TA relative to 25°C

1.05

1.31

–0.016 0.05

1.75

0.104

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

VOUT(Q)INITMID Reference VOUT(Q)PRE

VOUT(Q)INITHIGH TA = 25°C

–

0.55

–

–

–-

–

–

3.25

–

SensINITLOW Reference SensPRE

–

–

–

Initial Coarse Sensitivity

SensINITMID TA = 25°C

–

2.8

–

SensINITHIGH TA = 25°C

–

5.5

–

V

mV/G

%/°C

V

V

V

mV/G

mV/G

mV/G

Continued on the next page...

Allegro MicroSystems, Inc.

3

115 Northeast Cutoff, Box 15036

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

www.allegromicro.com

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