Patent ID: 11901919
Assignee: STMICROELECTRONICS INTERNATIONAL N.V.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 16:
17. A method, comprising:
storing digital reference data in an integrated circuit, the digital reference data corresponding to an over-sampled X-bit representation of an analog reference signal;
generating, from the digital reference data, a single-bit data stream;
storing the single-bit data stream in a memory;
passing the single-bit data stream from the memory to a finite-impulse response digital-to-analog converter including a plurality of flip-flops coupled in series, a plurality of single-bit digital-to-analog converters each coupled to an output of a respective flip-flop, and a plurality of summers;
generating an analog test signal with the finite-impulse response digital-to-analog converter by summing outputs of the single-bit digital-to-analog converters with the summers;
converting the analog test signal to digital test data with a Y-bit continuous time delta-sigma analog-to-digital converter of the integrated circuit, wherein Y is an integer less than or equal to X; and
determining an accuracy of the continuous time delta-sigma analog-to-digital converter by comparing the digital test data to the digital reference data.