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[信息与通信]MAX1441 美信Maxim必威体育精装版电容检测芯片
19-5310; Rev 0; 7/10
KIT
EVALUATION
AVAILABLE
Automotive, Two-Channel Proximity and
Touch Sensor
General Description Features M
The MAX1441 proximity and touch sensor IC is designed S Low Average Operating Current (100µA at 14V) A
for capacitive proximity sensing in automotive passive S 1.2.fF LSB Capacitance-to-Digital Resolution (5pF X
remote keyless entry (PRKE) and other applications. Range) 1
4
This device provides signal processing to support
S 5V to 28V Operation
4
two independent touch/proximity sensor channels. The
device features two open-drain output pins with high- S 45V Overvoltage Protection
voltage capability up to 28V, as well as five digital I/Os S Sinusoidal Excitation for Reduced EMI Emissions 1
to indicate sensing events. During manufacturing, JTAG
S Frequency Spreading Operation for Reduced EMI
programming uses four digital I/Os.
Susceptibility and Emissions
The device uses grounded electrode capacitive sens-
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