| PGA |
1~1024 |
| INTN/GPIO |
1 |
| Watch Dog |
YES |
| MCU |
/ |
| DAC (bit) |
11 |
| CTRL IF |
I²C |
| Low Power Mode |
YES |
| Channel |
1 |
| Temperature |
-40℃~85℃ |
| Package (mm) |
WLCSP 1.41X1.41-16B |
| ADC (bit) |
14 |
1 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
AW86861 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 1 analog input differential channel and MUX, level 2 PGA, 11-bit offset calibration DAC, 14bit ADC and pressing algorithm).
AW86861 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 AW86861 is available in a WLCSP 1.41mmX1.41mmX0.34mm-16B package.
EN