| PGA |
1~1024 |
| INTN/GPIO |
1 |
| Watch Dog |
YES |
| MCU |
/ |
| DAC (bit) |
11 |
| CTRL IF |
I²C |
| Low Power Mode |
YES |
| Channel |
4 |
| Temperature |
-40℃~85℃ |
| Package (mm) |
WLCSP 1.41X1.41-16B |
| ADC (bit) |
14 |
•4 analog input differential channel
•Selectable Gains of 1,8,16, 32, 64, 128, 256,512,1024
•150 KSPS 14-bit SAR ADC
•11-bit offset calibration DAC
•Support 400KHz/1MHz I2C
•1 smart watch dog timer(SWDT)
•Support Temperature Sense
•1 INTN pin
•Power-on reset, Low voltage detection
•Low voltage reset
•Low power consumption mode
•Built-in pressing algorithm
•WLCSP 1.41mmX1.41mmX0.34mm-16B package
AW86864 is a chip of force touch AFE, which has the functions of pressure sensing signal acquisition, amplification and processing. It integrated 1 I2C module, 1 system control module, 1 power management module and 1 AFE module (Include 4 analog input differential channel and MUX, level 2 PGA, 11-bit offset calibration DAC, 14bit ADC and pressing algorithm).
AW86864 can enter low power consumption mode automatically without the master participation and trigger AFE work through SWDT wake-up to sample and process the signal. In low power consumption mode, the operating frequency of the chip is 10Hz and the power consumption is 8~13μA. Interrupt signals such as sampling completion, threshold comparison and press event trigger can be configured to output through interrupt pin.
The AW86864 is available in a WLCSP 1.41mmX1.41mmX0.34mm-16B package.
