ADMP421

Data Sheet

Rev. D | Page 12 of 16

RELIABILITY SPECIFICATIONS

The microphone sensitivity after stress must deviate by no more than 3 dB from the initial value.

Table 6.

Stress Test

Description

Low Temperature Operating Life

−40°C, 500 hours, powered

High Temperature Operating Life

+125°C, 500 hours, powered

Temperature Humidity Bias (THB)

+85°C/85% relative humidity (RH), 500 hours, powered

Temperature Cycle

−40°C/+125°C, one cycle per hour, 1000 cycles

High Temperature Storage

+150°C, 500 hours

Low Temperature Storage

−40°C, 500 hours

Component CDM ESD

All pins, 0.5 kV

Component HBM ESD

All pins, 1.5 kV

Component MM ESD

All pins, 0.2 kV