摘要:
An instrumentation circuit has an integrated circuit that has input terminals, an amplifier arrangement using feed forward compensation and an analog to digital converter and a serial data output receiving the output from said amplifier arrangement. A bridge circuit, having a transducer, or a thermocouple arrangement are connected to input terminals of the integrated circuit.
摘要:
A signal processing integrated circuit has having a chopper stabilized, multistage, feedforward amplifier and a delta sigma analog to digital converter. Filtering of the output of the output from the analog to digital converter comprises a sinc5 filter and a sinc3 filter. The sinc3 filter may be bypassed. A rough buffer permits quick charging of a sample and hold capacitor during part of the charge cycle and slower but more accurate charging during the remainder of the charge cycle.
摘要:
A method of testing an integrated circuit includes setting a guardbanded limit for a parameter associated with an embedded node, a deviation from the guardbanded limit under a set of test conditions correlated with a failure of the integrated circuit across a range of operating conditions. A test is performed under the test conditions to detect deviations of the parameter from the guardbanded limit to detect failures of the integrated circuit over the range of operating conditions.