Honeywell HMC1051, HMC1052 User Manual

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HMC1051 / HMC1052

1 AND 2-AXIS MAGNETIC SENSORS

Features

· Small 8-Pin SIP or 10-Pin MSOP Packages

· Two AMR Bridges in One Package

· Wide Field Range of +/- 6 Gauss

· 1.0 mV/V/gauss Sensitivity

· High Accuracy Compassing (Error <0.01°)

· Low Power Operation Down to 1.8V

· Patented On-chip Set/Reset Straps

Product Description

The Honeywell HMC1051Z and HMC1052 are high
performance magnetoresistive sensor designs on a
single chip. The advantages of these patented chips
include perfectly orthogonal two-axis sensing
(HMC1052), ultra small size and low power capability in
miniature surface mount packages.

SENSOR PRODUCTS

Each of the magnetoresistive sensors are configured
as a 4-element wheatstone bridge to convert magnetic
fields to differential output voltages. Capable of sensing
fields below 0.1 milligauss, these sensors offer a
compact, low cost, high sensitivity and highly reliable
solution for low field magnetic sensing.

APPLICATIONS

HMC1052 Circuit Diagram

· Compassing

· Navigation Systems

· Attitude Reference

· Traffic Detection

· Medical Devices

· Position Sensing

Web Sites: www.magneticsensors.com Honeywell

Email: [e-mail] 12001 State Highway 55

2001 HMC1051/1052 Published Jul 2001 Page 1 1-800-323-8295

www.ssec.honeywell.com Solid State Electronics Center

Plymouth, Minnesota 55441-4799

HMC1051 / HMC1052

SENSOR PRODUCTS

SPECIFICATIONS

Characteristics Conditions* Min Typ Max Units

Bridge Elements

Supply Vbridge referenced to GND 1.8 2.5 20 Volts

Resistance Bridge current = 1mA 800 1000 1500 ohms

Field Range Full scale (FS) – total applied field -6 +6 gauss

Sensitivity Set/Reset Current = 0.5A 0.8 1.0 1.2 mV/V/gauss

Bridge Offset Offset = (OUT+) – (OUT-)

Field = 0 gauss after Set pulse

Bandwidth Magnetic signal (lower limit = DC) 5 MHz

Noise Density @ 1kHz, Vbridge=5V 50 nV/sqrt Hz

Resolution 50Hz Bandwidth, Vbridge=5V 120

Disturbing Field Sensitivity starts to degrade.

Use S/R pulse to restore sensitivity.

Max. Exposed

No perming effect on zero reading 10000 gauss

Field

Operating

Ambient -40 125 °C

Temperature

Storage

Ambient, unbiased -55 150 °C

Temperature

Sensitivity

Tempco

Bridge Offset

Tempco

Bridge Ohmic

TA=-40 to 125°C, Vbridge=5V

T

=-40 to 125°C, Ibridge=5mA

A

TA=-40 to 125°C, No Set/Reset

T

=-40 to 125°C, With Set/Reset

A

Vbridge=5V, TA=-40 to 125°C 2100 2500 2900 ppm/°C

Tempco

Sensitivity Ratio of

TA=-40 to 125°C 99 101 103 %

X,Y Sensors

(HMC1052 Only)

X,Y sensor

Sensitive direction in X and Y sensors 0.01 degree

Orthogonality

(HMC1052)

Linearity Error Best fit straight line

+/- 1 gauss

+/- 3 gauss

+/- 6 gauss

Hysteresis Error 3 sweeps across +/-3 gauss 0.06 %FS

Repeatability Error 3 sweeps across +/-3 gauss 0.1 %FS
* Tested at 25°C except stated otherwise.

-2.5 +/-1 +2.5 mV/V

mgauss

20 gauss

-3200 -3000

-2800 ppm/°C

-600

+/-500

ppm/°C

+/-10

0.1

0.5

%FS

1.8

Web Sites: www.magneticsensors.com Honeywell

Email: [e-mail] 12001 State Highway 55

2001 HMC1051/1052 Published Jul 2001 Page 2 1-800-323-8295

www.ssec.honeywell.com Solid State Electronics Center

Plymouth, Minnesota 55441-4799

HMC1051 / HMC1052

SENSOR PRODUCTS

SPECIFICATIONS
Characteristics Conditions* Min Typ Max Units

Set/Reset Strap

Resistance Measured from S/R+ to S/R- 3 4 5 ohms

Current 0.1% duty cycle, or less,

2msec current pulse

Resistance

TA=-40 to 125°C 3700 ppm/°C

Tempco

Offset Straps

(available on die)

Resistance Measured from OFFSET+ to OFFSET- 12 15 18 ohms

Offset

Constant

Resistance

Field applied in sensitive direction

DC Current

TA=-40 to 125°C 3900 ppm/°C

Tempco
* Tested at 25°C except stated otherwise.

Pin Configurations (Arrow indicates direction of applied field that generates a positive output voltage after a SET pulse.)

HMC1051

Vcc

(3)

0.4 0.5 4 Amp

10 mA/gauss

HMC1051Z Pinout

HMC1052

HMC1051

BRIDGE A BRIDGE B

Vo+(A)

OUT-

GND Plane

(2)

BRIDGE A BRIDGE B

GND2

(3)

(10)

(4)

GND1

(9)

S/R+

S/R+

(6)

(6)

Vo-(A)

(8)

Set/Reset Strap

Vcc

(5)

HMC1052

OUT+

(4)

Set/Reset Strap

OUT-

(7)

GND1(B)

(1)

S/R-

(7)

GND

(1)

S/R-

(8)

GND2(B)

(5)

OUT+

(2)

HONEYWELL

HMC1051Z

12345678

HMC1052 Pinout

678910

HMC
1052

12345

B

A

Web Sites: www.magneticsensors.com Honeywell

www.ssec.honeywell.com Solid State Electronics Center

Email: [e-mail] 12001 State Highway 55

Plymouth, Minnesota 55441-4799

2001 HMC1051/1052 Published Jul 2001 Page 3 1-800-323-8295