Rainbow-electronics ADC16061 Bedienungsanleitung

ADC16061Self-Calibrating 16-Bit, 2.5 MSPS, 390 mW A/D ConverterGeneral DescriptionThe ADC16061 is a self-calibrating 16-bit, 2.5 Megasampleper second

Typical Performance CharacteristicsINL vs TemperatureDS100889-25DNL vs TemperatureDS100889-26SNR vs TemperatureDS100889-27INL vs VREFand TemperatureDS

Specification DefinitionsAPERTURE JITTER is the variation in aperture delay fromsample to sample. Aperture jitter shows up as input noise.APERTURE DEL

Timing Diagrams (Continued)DS100889-16TIMING DIAGRAM 2. Reset and Calibration Timingwww.national.com 12

Functional DescriptionOperating on a single +5V supply, the ADC16061 uses apipelined architecture and has error correction circuitry and acalibration

Applications Information (Continued)For single ended operation, one of the analog inputs shouldbe connected to VCM. However, SNR and SINAD are re-duce

Applications Information (Continued)To avoid signal clipping and distortion, VREF+OUTshould notexceed 3.3V, VREF−OUTshould not be below 750 mV andVCMs

Applications Information (Continued)DS100889-20FIGURE 7. Differential drive circuit ofFigure 6. All 5k resistors are 0.1%. Tolerance of the other resi

Applications Information (Continued)5.0 LAYOUT AND GROUNDINGProper grounding and proper routing of all signals are essen-tial to ensure accurate conve

Applications Information (Continued)6.0 DYNAMIC PERFORMANCETo achieve the best dynamic performance with theADC16061, the clock source driving the CLK

Applications Information (Continued)mance. Amplifiers that have been used successfully to drivethe analog inputs of the ADC16061 include the CLC427,CL

Block DiagramDS100889-2www.national.com 2

Physical Dimensions inches (millimeters) unless otherwise notedLIFE SUPPORT POLICYNATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENT

Pin Descriptions and Equivalent CircuitsPinNo.Symbol Equivalent CircuitDescriptionAnalog I/O1VIN+Non-Inverting analog signal Input. With a 2.0V refere

Pin Descriptions and Equivalent Circuits (Continued)Digital I/O10 CLOCKDigital clock input. The range of frequencies for this input is 300 kHz to 2.5M

Pin Descriptions and Equivalent Circuits (Continued)Digital Power20 VDPositive digital supply pin. This pin should be connected to the same clean,quie

Absolute Maximum Ratings (Note 1)If Military/Aerospace specified devices are required,please contact the National Semiconductor Sales Office/Distribut

DC and Logic Electrical CharacteristicsThe following specifications apply for AGND=DGND=DGND I/O=0V, V+=VA=VD=+5.0V, VDI/O=3.0V or 5.0V,PD=+5V, VREF+=

AC Electrical Characteristics (Continued)The following specifications apply for AGND=DGND=DGND I/O=0V, V+=VA=VD=+5.0V, VDI/O=3.0V or 5.0V,PD=+5V, VREF

Electrical Characteristics (continued)DS100889-13FIGURE 1. Transfer CharacteristicsDS100889-14FIGURE 2. Errors removed by Auto-Cal cyclewww.national.c