MA302 – 12-BIT, DIGITAL ANGLE SENSOR WITH ABZ & UVW OUTPUTS

MA302 Rev. 1.1

www.MonolithicPower.com

5

2/7/2020

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© 2020 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

11.0

11.8

12.8

bit

Noise rms

0.01

0.02

0.03

deg

Refresh rate

850

980

1100

kHz

Data output length

14

14

bit

Response Time

Power-up time (4)

12

ms

Latency (5)

Constant speed propagation

delay

8

10

µs

Filter cutoff frequency (4)

Fcutoff

390

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

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

Incremental Output

– UVW

Cycle per turn

NPP

1

8

UVW hysteresis (5)

H

0.7

deg

UVW

jitter (3σ) (5)

0.1

0.3

deg