Patent ID: 7091891

Claim:
An integrated circuit having a plurality of external output points, comprising: a) an analog to digital converter, comprising: i) a plurality of stages, each stage having a digital output with a plurality of bits; ii) digital logic coupled to the digital outputs of each of the plurality of stages, the digital logic having a digital output word with a plurality of digital bits representing a combination of the digital outputs of the plurality of stages; and b) switching circuitry, comprising: i) at least one first input coupled to at least one of the digital outputs of at least one of the plurality of stages; ii) at least one second input coupled to at least a portion of the digital bits in the digital output word; and iii) an output coupled to at least a portion of the plurality of external output points; iv) a control input; and v) control circuitry that selectively couples the at least one first input or the at least one second input to the output in response to the control input.