![]() ![]() This helps us to improve the way the website works, for example, by ensuring that users are easily finding what they are looking for. Analytics/Performance Cookies: These cookies allow us to carry out web analytics or other forms of audience measuring such as recognizing and counting the number of visitors and seeing how visitors move around our website. They either serve the sole purpose of carrying out network transmissions or are strictly necessary to provide an online service explicitly requested by you. The cookies we use can be categorized as follows: Strictly Necessary Cookies: These are cookies that are required for the operation of or specific functionality offered. All documents and software tools are available at For additional information or questions, send an email to Evaluation Board The AD9680 and AD9234 data sheets provide additional information and should be consulted when using the evaluation board. The input impedance of this circuit is about 22 kilohms, and the time of conversion - less than 300 ns.Evaluation board for AD9680-1250 Full BandwidthĮvaluation board for AD9680-1000 Full BandwidthĮvaluation board for AD9680-820 Full BandwidthĮvaluation board for AD9680-500 Full BandwidthĮvaluation board for AD9234-1000 Full BandwidthĮvaluation board for AD9234-500 Full BandwidthĮvaluation board for AD9680-1000 up to 1GHz Input BandwidthĮvaluation board for AD9680-820 up to 1GHz Input BandwidthĮvaluation board for AD9680-500 up to 1GHz Input BandwidthĮvaluation board for AD9234-1000 up to 1GHz Input BandwidthĮvaluation board for AD9234-500 up to 1GHz Input Bandwidth One of the possible approaches to construct this device is shown in Figure 2. If the required accuracy of analog to digital conversion does not exceed four bits, then as the basis for the ADC can be used quad CMOS logic elements "NAND" or "NOR". ![]() Most of the modern op amps is satisfied for these requirements, the inverting inputs of this op amps should be connected to the Vcc/2 (half of power supply voltage). In addition, the comparator must have a high input and low output impedance. Input voltage which can range from zero up to power supply voltage (Vcc) converts to parallel additional binary code at the outputs of the converter.įor normal operation of the ADC requires that the inverter-comparators A1-A4 should be able to switch when the voltage on their inputs equal to Vcc/2 and an error must be no more than Vcc/(2 n-2) (n - number of bits of binary code at output), and the output voltage of the comparator in on/off states should be close to zero and to the Vcc. The simplest Analog to Digital Converter (ADC) can be constructed as shown in Figure 1. ![]()
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