5.8.1 Shutdown Mode

Shutdown mode disables all power consuming activities (including temperature sampling operations) while leaving the serial interface active. This mode is selected by setting bit 8 of CONFIG to ‘1’. In this mode, the device consumes I_SHDN. It remains in this mode until bit 8 is cleared to ‘0’ to enable Continuous Conversion mode or until power is recycled.

The Shutdown bit (bit 8) cannot be set to ‘1’ while the CONFIG<7:6> bits (Lock bits) are set to ‘1’. However, it can be cleared to ‘0’ or returned to Continuous Conversion mode while locked.

In Shutdown mode, all registers can be read or written. However, the serial bus activity increases the shutdown current. In addition, if the device is in shutdown while the Alert pin is asserted, the device will retain the active state during shutdown. This increases the shutdown current due to the additional Alert output current.