Using the HI1176/HI1179 Evaluation Board

2009-5-12 13:01:08 2221

0 The HI1176/HI1179 evaluation board can be used to evaluate the performance of the HI1176 (8-bit, 20MSPS) and the HI1179 (8-bit, 35 MSPS) analog-to-digital converters (ADC). The board includes 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 converters designed in 1.4μm and 1.0μm CMOS processes, respectively. These parts are pin for pin compatible with differences being the maximum guaranteed clock speed (20MSPS vs 35MSPS) and the HI1176 has a built in monostable multivibrator where the HI1179 does not (See Table 1). The evaluation board is built to be used for both the HI1176 and the HI1179, therefore the monostable multivibrator on the HI1176 is not utilized but it is discussed. The HI1171 (8-bit, 40MHz) DAC is used to reconstruct the HI1176/HI1179 digital outputs, allowing the user to see the results of a “complete” 8-bit system. Refer to Table 2 for more specifications on the HI1171. 0
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