MA710 – 12-BIT, DIGITAL ANGLE SENSOR WITH ABZ & PWM OUTPUTS

MA710 Rev. 01.0

www.MonolithicPower.com

5

9/27/2017

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© 2017 MPS. All Rights Reserved.

GENERAL CHARACTERISTICS

VDD = 3.3V, 45mT < B < 100mT, Temp = -40°C to +125°C, unless otherwise noted.

Parameter

Symbol

Condition

Min

Typ

Max

Units

Absolute Output

– Serial

Effective resolution

3σ deviation of the noise

distribution

12.0

12.8

13.8

bit

Effective resolution at 15mT

(5)

3σ deviation of the noise

distribution

10.5

11.0

11.5

Bit

Noise RMS

0.004

0.008

0.015

deg

Refresh rate

850

980

1100

kHz

Data output length

14

14

bit

Response Time

Power-up time

(4)

60

ms

Latency

(4)

Constant speed propagation delay

8

10

µs

Filter cutoff frequency

(4)

Fcutoff

93

Hz

Accuracy

INL at 25°C

At room temperature over the full

field range

0.7

deg

INL between -40°C to

+125°C

(5)

Over the full temperature range

and field range

1.1

deg

Output Drift

Temperature induced drift at

room temperature

(5)

0.015

0.04

deg/°C

Temperature induced

variation

(5)

From 25°C to 85°C

0.5

1.2

deg

From 25°C to 125°C

1.0

2.1

deg

Magnetic field induced

(5)

0.005

deg/mT

Voltage supply induced

(5)

0.3

deg/V

Absolute Output - PWM

PWM frequency

Fpwm

204

240

264

Hz

PWM resolution

11.0

11.8

12.0

bit

Incremental Output

– ABZ

ABZ update rate

16

MHz

Resolution - edges per turn

Programmable

4

1024

Pulses per channel per turn

PPT+1

Programmable

1

256

ABZ hysteresis

(5)

H

0.7

deg

Systematic jitter

(5)

For PPT = 255, between 0 and

100krpm, up to 60mT

13

%

For PPT = 127, between 0 and

100krpm

7

%

Random

jitter (3σ)

For PPT = 255, between 0 and

100krpm

5.5

%

For PPT = 127, between 0 and

100krpm

2.8

%

Overall ABZ jitter

(5)

Up to 60mT

0.3

deg