The HI1176/HI1179 evaluation board can be used to evaluatethe performance of the HI1176 (8-bit, 20MSPS) and the HI1179(8-bit, 35 MSPS) analog-to-digital converters (ADC). The boardincludes clock driver circuitry, an external reference voltage generator,data output buffer, and a digital to analog converter (DAC).The HI1176 and the HI1179 are 8-bit CMOS 2-step A/D convertersdesigned in 1.4μm and 1.0μm CMOS processes,respectively. These parts are pin for pin compatible with differencesbeing the maximum guaranteed clock speed(20MSPS vs 35MSPS) and the HI1176 has a built inmonostable multivibrator where the HI1179 does not (SeeTable 1). The evaluation board is built to be used for both theHI1176 and the HI1179, therefore the monostable multivibratoron the HI1176 is not utilized but it is discussed.The HI1171 (8-bit, 40MHz) DAC is used to reconstruct theHI1176/HI1179 digital outputs, allowing the user to see theresults of a “complete” 8-bit system. Refer to Table 2 formore specifications on the HI1171.
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