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ISL267450AIHZ-T Fiches technique(PDF) 7 Page - Intersil Corporation |
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ISL267450AIHZ-T Fiches technique(HTML) 7 Page - Intersil Corporation |
7 / 18 page ISL267440, ISL267450A 7 FN7708.2 June 28, 2012 Timing Specifications Limits established by characterization and are not production tested. VDD = 3.0V to 3.6V, fSCLK =18MHz, fS =1MSPS, VREF = 2.0V; VDD = 4.75V to 5.25V, fSCLK =18MHz, fS = 1MSPS, VREF =2.5V; VCM = VREF unless otherwise noted. Boldface limits apply over the operating temperature range, -40°C to +85°C. SYMBOL PARAMETER TEST CONDITIONS MIN (Note 8) TYP MAX (Note 8) UNITS fSCLK Clock Frequency 0.01 18 MHz tSCLK Clock Period 55 ns tACQ Acquisition Time (Note 10) ns tCONV Conversion Time 888 ns tCSW CS Pulse Width 10 ns tCSS CS Falling Edge to SCLK Falling Edge Setup Time 10 ns tCDV CS Falling Edge to SDATA Valid 20 ns tCLKDV SCLK Falling Edge to SDATA Valid 40 ns tSDH SCLK Falling Edge to SDATA Hold 10 ns tSW SCLK Pulse Width 0.4 x tSCLK 0.6 x tSCLK ns tDISABLE SCLK Falling Edge to SDATA Disable Time (Note 11) Extrapolated back to true bus relinquish 10 35 ns tQUIET Quiet Time Before Sample 60 ns NOTE: 10. Read the “Acquisition Time” section on page 13 for a discussion of this parameter. 11. During characterization, tDISABLE is measured from the release point with a 10pF load (see Figure 4) and the equivalent timing using the AD7440/450A loading (25pF) is calculated. FIGURE 3. SERIAL INTERFACE TIMING DIAGRAM FIGURE 4. EQUIVALENT LOAD CIRCUIT OUTPUT PIN CL 10pF VDD 2.85k Ω RL |
Numéro de pièce similaire - ISL267450AIHZ-T |
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