Is lowest power consumption of 1.2uA possible using nrf52832 & SYSTEM_ON (s132, SDK17) for GATTS - Central

Hi nRF community,

I have a question regarding the lowest power consumption ever possible with nRF52832 chip.

I'm experimenting with power consumption using nRF52832 DK (PCA10040 1.2.1), talking to another nRF52832DK.

I run a central (based on GATTS example) scanning for my peripheral, I use SDK17.1 + S132.

The SDK is configured to have no logs and external interfaces, and most of the peripherals are disabled + I use DCDC.

After the BLE initialization is complete I set up the interrupt event for GPIOTE.

The entire thing is configured and run's properly for the BLE piece but I want it to have a smaller consumption while I'm in idle state (during __WFE()).

Before entering the main loop I call "  sd_power_mode_set(NRF_POWER_MODE_LOWPWR) " function and basicly wait for an event on the interrupt to start scanning.

Currently according to nRF PPK2 I'm consuming around 18 microamps, but the question is can I get it 10 times smaller, like 1.2 ~ 2 uA (microamps)?

What other peripherals I can disable if I use SoftDevice and BLE ? 

Regards, 

Dmytro.