Rainbow-electronics ADC081000 Manual do Utilizador

ADC081000High Performance, Low Power 8-Bit, 1 GSPS A/DConverterGeneral DescriptionThe ADC081000 is a low power, high performance CMOSanalog-to-digital

Specification DefinitionsAPERTURE (SAMPLING) DELAY is that time required afterthe fall of the clock input for the sampling switch to open. TheSample/H

Specification Definitions (Continued)SIGNAL TO NOISE RATIO (SNR) is the ratio, expressed indB, of the rms value of the input signal at the output to t

Transfer CharacteristicTiming Diagrams20068156FIGURE 2. Input / Output Transfer Characteristic20068114FIGURE 3. ADC081000 TimingADC081000www.national.

Typical Performance Characteristics VA=VDR= +1.9V, fCLK= 1 GHz (differential clock),fIN= 248 MHz, Differential Inputs, unless otherwise stated. Parame

Typical Performance Characteristics VA=VDR= +1.9V, fCLK= 1 GHz (differential clock),fIN= 248 MHz, Differential Inputs, unless otherwise stated. Parame

Typical Performance Characteristics VA=VDR= +1.9V, fCLK= 1 GHz (differential clock),fIN= 248 MHz, Differential Inputs, unless otherwise stated. Parame

Typical Performance Characteristics VA=VDR= +1.9V, fCLK= 1 GHz (differential clock),fIN= 248 MHz, Differential Inputs, unless otherwise stated. Parame

Typical Performance Characteristics VA=VDR= +1.9V, fCLK= 1 GHz (differential clock),fIN= 248 MHz, Differential Inputs, unless otherwise stated. Parame

Typical Performance Characteristics VA=VDR= +1.9V, fCLK= 1 GHz (differential clock),fIN= 248 MHz, Differential Inputs, unless otherwise stated. Parame

Typical Performance Characteristics VA=VDR= +1.9V, fCLK= 1 GHz (differential clock),fIN= 248 MHz, Differential Inputs, unless otherwise stated. Parame

Ordering InformationExtended Commercial TemperatureRange (-40˚C<TA<+85˚C)NS PackageADC081000CIYB 128-Pin Exposed Pad LQFPADC081000LEVAL Evaluati

Typical Performance Characteristics VA=VDR= +1.9V, fCLK= 1 GHz (differential clock),fIN= 248 MHz, Differential Inputs, unless otherwise stated. Parame

Typical Performance Characteristics VA=VDR= +1.9V, fCLK= 1 GHz (differential clock),fIN= 248 MHz, Differential Inputs, unless otherwise stated. Parame

Functional DescriptionThe ADC081000 is a versatile, high performance, easy touse A/D Converter with an innovative architecture permittingvery high spe

Functional Description (Continued)1.4 ClockingThe ADC081000 must be driven with an a.c. coupled, differ-ential clock signal. Section 4 describes the u

Applications Information (Continued)TABLE 3. DIFFERENTIAL INPUT TO OUTPUTRELATIONSHIP (FSR High)VIN+VIN− Output CodeVCM− 200 mV VCM+ 200 mV 0000 0000V

Applications Information (Continued)4.0 THE CLOCK INPUTSThe ADC081000 has differential LVDS clock inputs, CLK+and CLK-, which must be driven with an a

Applications Information (Continued)5.2 Calibration DelayThe CalDly input (pin 127) is used to select one of two delaytimes after the application of p

Applications Information (Continued)The Absolute Maximum Ratings should be strictly observed,even during power up and power down. A power supply thatp

Applications Information (Continued)8.0 LAYOUT AND GROUNDINGProper grounding and proper routing of all signals are es-sential to ensure accurate conve

Physical Dimensions inches (millimeters) unless otherwise notedNOTES: UNLESS OTHERWISE SPECIFIEDREFERENCE JEDEC REGISTRATION MS-026, VARIATION BFB.128

Pin Descriptions and Equivalent CircuitsPin FunctionsPin No. Symbol Equivalent Circuit Description3 OutVOutput Voltage Amplitude set. Tie this pin hig

Pin Descriptions and Equivalent Circuits (Continued)Pin FunctionsPin No. Symbol Equivalent Circuit Description7VCMOCommon Mode Output voltage for VIN+

Pin Descriptions and Equivalent Circuits (Continued)Pin FunctionsPin No. Symbol Equivalent Circuit Description1041051061071111121131141151161171181221

Absolute Maximum Ratings(Notes 1, 2)If Military/Aerospace specified devices are required,please contact the National Semiconductor Sales Office/Distri

Converter Electrical Characteristics (Continued)The following specifications apply after calibration for VA=VDR= +1.9VDC, OutV = 1.9V, VINFSR (a.c. co

Converter Electrical Characteristics (Continued)The following specifications apply after calibration for VA=VDR= +1.9VDC, OutV = 1.9V, VINFSR (a.c. co

Converter Electrical Characteristics (Continued)The following specifications apply after calibration for VA=VDR= +1.9VDC, OutV = 1.9V, VINFSR (a.c. co