HMC5843 datasheet(2/19 Pages) HONEYWELL

2 / 19 page

HMC5843

www.honeywell.com

SPECIFICATIONS (* Tested at 25°C except stated otherwise.)

Characteristics

Conditions*

Min

Typ

Max

Units

Power Supply

Supply Voltage

AVDD Referenced to AGND

DVDD Referenced to DGND

2.5

1.6

1.8

3.3

2.0

Volts

Current Draw

Sleep Mode (dual supplies)

Idle Mode (dual supplies)

Measurement Mode

AVDD = 2.5 volts, DVDD = 1.8 volts

Sleep Mode (single supply)

Idle Mode (single supply)

Measurement Mode

AVDD = 2.5 volts

2.5

240

0.8

110

340

0.9

Performance

Field Range

Full scale (FS) – total applied field

-4

gauss

Cross-Axis Sensitivity

Cross field = 0.5 gauss,

Happlied = ±3 gauss

±0.2%

%FS/gauss

Disturbing Field

Sensitivity starts to degrade.

Use S/R pulse to restore sensitivity.

gauss

Max. Exposed Field

No perming effect on zero reading

10000

gauss

Measurement Period

Output Rate = 50Hz (10Hz typ.)

msec

2C Address

7-bit address

8-bit read address

8-bit write address

0x1E

0x3D

0x3C

hex

2C Rate

Controlled by I

2C Master

-10

+10

2C bus pull-up

Internal passive resistors

kilo-ohms

2C Hysteresis

Hysteresis of Schmitt trigger inputs on SCL

and SDA - Fall (DVDD=1.8V)

Rise (DVDD=1.8V)

0.603

1.108

Volts

Self Test

Positive and Negative Bias Mode

±0.55

gauss

Mag Dynamic Range

3-bit gain control

±0.7

±1.0

±4.0

gauss

Linearity

Full scale input range

0.1

±% FS

Gain Tolerance

All gain/dynamic range settings

±5

Bandwidth

-3dB point

kHz

Resolution

AVDD=3.0V, GN

milli-gauss

Signal-to Noise Ratio

Turn-on Time

200

General

ESD Voltage

700

Operating Temperature

Ambient

-30

°C

Storage Temperature

Ambient, unbiased

-40

125

°C

Weight

Nominal

milli-grams

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