AD7880BNZ Analog Devices Inc, AD7880BNZ Datasheet
AD7880BNZ
Specifications of AD7880BNZ
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AD7880BNZ Summary of contents
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FEATURES 12-Bit Monolithic A/D Converter 66 kHz Throughput Rate 12 s Conversion Time 3 s On-Chip Track/Hold Amplifier Low Power Power Save Mode typ Normal Operation typ 70 dB SNR Fast Data Access Time: 57 ...
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AD7880–SPECIFICATIONS Parameter B Versions 2 DYNAMIC PERFORMANCE 3 Signal-to-Noise Ratio (SNR) 70 Total Harmonic Distortion (THD) –80 Peak Harmonic or Spurious Noise –80 Intermodulation Distortion (IMD) Second Order Terms –80 Third Order Terms –80 DC ACCURACY Resolution 12 Integral Nonlinearity ...
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TIMING CHARACTERISTICS Limit at +25 C Parameter (All Versions 130 NOTES 1 Timing specifications ...
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AD7880 ORDERING GUIDE Full-Scale Temperature Error Model Range (LSBs) AD7880BN – + AD7880BQ – + AD7880CN – + AD7880CQ – + AD7880BR –40 C ...
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CIRCUIT INFORMATION The AD7880 single supply 12-bit A/D converter. The part requires no external components apart from a 2.5 MHz ex- ternal clock and power supply decoupling capacitors. It contains a 12-bit successive approximation ADC based ...
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AD7880 The AD7880 has two unipolar input ranges and Figure 5 shows the analog input for the range. The designed code transitions occur midway between ...
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500 – *ADDITIONAL PINS OMITTED FOR CLARITY Figure 11. Offset and Full-Scale Adjust Circuit Unipolar Adjustments In the case of the ...
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AD7880 12 11.5 11 10.5 SAMPLE FREQUENCY = 61kHz INPUT FREQUENCY – kHz Figure 13. Effective Number of Bits vs. Frequency Total Harmonic Distortion (THD) THD is the ratio of the rms sum ...
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MICROPROCESSOR INTERFACING The AD7880 high speed bus timing allows direct interfacing to real time digital signal processors, DSPs, as well as modern high speed, 16-bit microprocessors. Suitable microprocessor inter- faces are shown in Figures 15 through 20. AD7880–ADSP-2100 Interface Figure ...
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AD7880 a write operation starts a conversion. Data is read at the end of the conversion sequence as before. Figure 19 shows an example of initiating conversion using this method. A similar implemen- tation can be used for DSPs. Note ...
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APPLICATION HINTS Good printed circuit board (PCB) layout is as important as the circuit design itself in achieving high speed A/D performance. The AD7880’s comparator is required to make bit decisions on an LSB size of 1.22 mV. To achieve ...
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AD7880 as a function of time for such operation. The total conversion time for each cycle (where the time taken for a single conversion) corresponding to 1.65 10 Hence: Average Power = Power ...
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Figure 24. Data Acquisition Circuit Using the AD7880 REV. 0 Figure 25. PCB Silkscreen for Figure 24 –13– AD7880 ...
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AD7880 Figure 26. PCB Component Side Layout for Figure 24 Figure 27. PCB Solder Side Layout for Figure 24 –14– REV. 0 ...
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SEATING PLANE 0.419 (10.65) 0.394 (10.00) REV. 0 OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 24-Lead Plastic DIP (N-24) 1.228 (31.19) 1.226 (31.14 0.260 (6. PIN 1 SEATING PLANE 0.02 (0.5) ...
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