Patent ID: 11942961
Assignee: STMICROELECTRONICS S.R.L.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 9:
10. The method of claim 9, wherein the second channel includes a second sign comparator, the second digital to analog converter having an output coupled to a first input of the second sign comparator, the checking circuit being coupled to an output of the second sign comparator, the method further comprising:
selectively coupling by the switch network, upon reception of the self-test mode signal signaling a test phase, the output of the first digital to analog converter at a second input of the second sign comparator, the first input of the second sign comparator being maintained coupled to the output of the second digital to analog converter; and
issuing the test status signal based on the outputs of the first and second sign comparators.