ADA4571WHRZ-R7 datasheet(3/21 Pages) AD

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Data Sheet

ADA4571

Rev. 0 | Page 3 of 21

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SPECIFICATIONS

MAGNETIC CHARACTERISTICS

Table 1.

Parameter

Value

Unit

Test Conditions/Comments

Magnetic Field Strength, HEXT

kA/m

The stimulating magnetic field in the x-y sensor plane necessary to ensure the

minimum error as specified in Table 1 and Table 2

Maximum Magnetic Field Rotational

Frequency

50,000

rpm

Reference Position Error

±50

µm

Reference position for y = 0 µm is the straight connection line of Pin 2 and Pin 7;

the x = 0 µm position is referred to the middle distance of the package top

Reference Angle Error

±2

Degrees

Reference position for angle Φ = 0° is parallel to the straight connection line

of Pin 2 and Pin 7

∠

ELECTRICAL CHARACTERISTICS

ADA4571WH

−40°C ≤ TA ≤ +150°C, VDD = 2.7 V to 5.5 V, CL = 10 nF to GND, RL = 200 kΩ to GND; angle inaccuracies referred to homogenous

magnetic field of 25 kA/m; output signals and offset voltages are related to the common-mode level of VDD/2, unless otherwise stated.

Table 2.

Parameter

Symbol

Test Conditions/Comments

Min

Typ

Max

Unit

ANGULAR PERFORMANCE

Angle Measurement Range

180

Degrees

Uncorrected Angular Error1

αUNCORR

TA = −40°C

±5

Degrees

TA = 25°C

±5

Degrees

TA = 150°C

±5

Degrees

Single Point Calibration Angular

Error2, 3

αCAL

TA = −40°C to +150°C, GC = GND

±0.7

Degrees

TA = −40°C to +150°C, GC = VDD

±0.7

Degrees

Dynamic Angular Error4

αDYNAMIC

TA = −40°C to +150°C, rotation frequency =

2000 rpm

±0.1

±0.5

Degrees

OUTPUT PARAMETERS

Amplitude

VAMP

GC = GND

TA = −40°C

% VDD

TA = 25°C

% VDD

TA = 125°C

% VDD

TA = 150°C

% VDD

GC = VDD

TA = −40°C

% VDD

TA = 25°C

% VDD

TA = 125°C

% VDD

TA = 150°C

% VDD

Output Voltage Range

VO_SWING

VSIN and VCOS, normal operation

% VDD

Output Voltage Low

VOL

VSIN or VCOS, broken bond wire detected

% VDD

Output Referred Offset Voltage

VOFFSET

GC = VDD

3.75

% VDD

GC = GND

3.75

% VDD

Amplitude Synchronism Error5

−1

% peak

Delay Time

tDEL

Rotation frequency = 30,000 rpm

µs

Phase Error6

ΦERR

Rotation frequency = 30,000 rpm

0.8

Degrees

Orthogonality Error3

0.05

Degrees

Output Noise

VNOISE

Bandwidth (BW) = 80 kHz, referred to

output (RTO)

500

µV rms

Output Series Resistance

Normal operation, PD = GND

PD = VDD

kΩ

Output −3 dB Cutoff Frequency3

f−3dB

Amplifier BW, CL = 10 pF

100

kHz

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