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AD7262BCPZ Arkusz danych(PDF) 6 Page - Analog Devices |
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AD7262BCPZ Arkusz danych(HTML) 6 Page - Analog Devices |
6 / 32 page AD7262 Rev. 0 | Page 6 of 32 TIMING SPECIFICATIONS AVCC = 4.75 V to 5.25 V, CA_CBVCC = CC_CDVCC = 2.7 V to 5.25 V, VREF = 2.5 V internal/external; TA = TMIN to TMAX, unless otherwise noted.1 Table 2. Limit at TMIN, TMAX Parameter 2.7 V ≤ VDRIVE ≤ 3.6 V 4.75 V ≤ VDRIVE ≤ 5.25 V Unit Description fSCLK 200 200 kHz min 40 40 MHz max AD72622 32 32 MHz typ AD72622 20 20 MHz max AD7262-5 tCONVERT 19 × tSCLK 19 × tSCLK ns max tSCLK = 1/fSCLK 475 475 ns max AD7262 950 950 ns max AD7262-5 tQUIET 13 13 ns min Minimum time between end of serial read/bus relinquish and next falling edge of CS t2 10 10 ns min CS to SCLK setup time t33 15 15 ns max Delay from 19th SCLK falling edge until DOUTA and DOUTB are three-state disabled t4 29 23 ns max Data access time after SCLK falling edge t5 15 13 ns min SCLK to data valid hold time t6 0.4 × tSCLK 0.4 × tSCLK ns min SCLK high pulse width t7 0.4 × tSCLK 0.4 × tSCLK ns min SCLK low pulse width t8 13 13 ns min CS rising edge to falling edge pulse width t9 13 13 ns max CS rising edge to DOUTA, DOUTB, high impedance/bus relinquish t10 5 5 ns min SCLK falling edge to DOUTA, DOUTB, high impedance 35 35 ns max SCLK falling edge to DOUTA, DOUTB, high impedance t11 2 2 μs min Minimum CAL pin high time t12 2 2 μs min Minimum time between the CAL pin high and the CS falling edge t13 3 3 ns min DIN setup time prior to SCLK falling edge t14 3 3 ns min DIN hold time after SCLK falling edge tPOWER-UP 240 240 μs max Internal reference, with a 1 μF decoupling capacitor 15 15 μs max With an external reference, 10 μs typical SCLK 15 19 DOUTA THREE-STATE t4 23 4 20 t5 THREE- STATE t7 t3 18 DB9A DB10A DB11A 21 29 30 31 1 Sample tested during initial release to ensure compliance. All input signals are specified with tR = tF = 5 ns (10% to 90% of AVCC) and timed from a voltage level of 1.6 V. All timing specifications given are with a 25 pF load capacitance. With a load capacitance greater than this value, a digital buffer or latch must be used. See the Terminology section. 2 See the Serial Interface section. 3 The time required for the output to cross 0.4 V or 2.4 V. TIMING DIAGRAM CS DB1A DB0A t2 t9 tQUIET t8 t6 DOUTB THREE-STATE THREE- STATE DB9B DB10B DB11B DB1B DB0B Figure 2. Serial Interface Timing Diagram |
Podobny numer części - AD7262BCPZ |
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Podobny opis - AD7262BCPZ |
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