Patent ID: 11936397
Assignee: TEKTRONIX, INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 5:
6. A test and measurement instrument, comprising:
a port to receive analog data from a device under test;
a composite analog-to-digital converter (ADC), comprising
a low resolution ADC configured to receive and digitize the analog data at a low resolution and a high operating speed;
one or more high resolution ADCs configured to receive and digitize the analog data at a high resolution higher than the low resolution of the low resolution ADC and a lower operating speed lower than the high operating speed of the low resolution ADC;
a sample clock generator to provide a sample clock signal to the low resolution ADC;
a mixer connected between the port and the one or more high resolution ADCs ADC;
a local oscillator connected to the mixer to allow the one or more high resolution ADCs to be tuned to sample a portion of a spectrum of the low resolution ADC; and
one or more processors configured to execute code to cause the one or more processors to:
tune the local oscillator to a portion of a spectrum of the low resolution ADC; and
display at least one of the spectrum of the low resolution ADC and the portion of the spectrum.