ADA4571

Data Sheet

Rev. 0 | Page 4 of 21

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Parameter

Symbol

Test Conditions/Comments

Min

Typ

Max

Unit

PSRR

80

dB

Output Short-Circuit Current

Short to GND per pin (VSIN, VCOS)

15

20

mA

Short to VDD per pin (VSIN, VCOS)

−15

−18

mA

Sensitivity

SEN

52

mV/°

POWER SUPPLY

Supply Voltage

2.7

5.5

V

Quiescent Supply Current

PD = GND, GC = GND, no load

3.5

4.5

6.5

mA

7

mA

15

µA

Power-Up Time

reached

150

µs

To 98% of desired output level after PD cycling

100

µs

DIGITAL INPUTS

Input Bias Current (GC)

For GC mode control pin, GC = GND

30

µA

3

µA

Input Bias Current (PD)

For PD pin, PD = GND

3

µA

30

µA

Input Voltage (GC and PD)

High

1.4

V

Low

0.35

V

TEMPERATURE SENSOR

Error Over Temperature

5

°C

Temperature Voltage Range

0

82

Temperature Coefficient

3.173

mV/V/°C

VTEMP Output Voltage

18

40

VTEMP Output Impedance

Buffered output

50

Ω

VTEMP Load Capacitance

Optional load capacitance

0

22

nF

VTEMP Short-Circuit Current

Short-circuit to VDD or GND

2

mA

LOAD CAPACITOR

External Load Capacitance

Between VSIN to GND and VCOS to GND;

solder close to package

10

nF

1

error over temperature before calibration. Error components such as offset, amplitude synchronism, amplitude synchronism drift, thermal offset drift, phase error,

hysteresis, orthogonality error, and noise are included.

2

noise are included.

3

Guaranteed through characterization.

4

temperature after a continuous background calibration is performed to correct offset and amplitude synchronism errors. Error components such as phase error,

hysteresis, orthogonality error, noise, and lifetime drift are included.

5

Peak-to-peak amplitude mismatch. k = 100 × VSIN/VCOS.

6

Rotation frequency dependent phase error, after offset correction, amplitude calibration, and arctan calculation.