ADMP401ACEZ-RL7 datasheet(4/13 Pages) AD

Teilenummer	ADMP401ACEZ-RL7

Bauteilbeschribung	Omnidirectional Microphone with Bottom Port and Analog Output

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Data Sheet

ADMP401

Rev. E | Page 3 of 12

SPECIFICATIONS

TA = 25°C, VDD = 1.8 V, unless otherwise noted. All minimum and maximum specifications are guaranteed. Typical specifications are not

guaranteed.

Table 1.

Parameter

Symbol

Test Conditions/Comments

Min

Typ

Max

Unit

PERFORMANCE

Directionality

Omni

Sensitivity

1 kHz, 94 dB SPL

−45

−42

−39

dBV

Signal-to-Noise Ratio

SNR

62

dBA

Equivalent Input Noise

EIN

32

dBA SPL

Dynamic Range

Derived from EIN and maximum acoustic input

88

dB

Frequency Response1

Low frequency, −3 dB point

60

Hz

High frequency, −3 dB point

15

kHz

Deviation limits from flat response within pass band

−3/+2

dB

Total Harmonic Distortion

THD

105 dB SPL

3

%

Power Supply Rejection

PSR

217 Hz, 100 mV p-p square wave superimposed on VDD = 1.8 V

70

dB

Maximum Acoustic Input

Peak

120

dB SPL

POWER SUPPLY

Supply Voltage

VDD

1.5

3.3

V

Supply Current

IS

250

µA

OUTPUT CHARACTERISTICS

Output Impedance

ZOUT

200

Ω

Output DC Offset

0.8

V

Output Current Limit

90

µA

1

See Figure 6 and Figure 7.

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