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ADS8380 Datasheet(PDF) 6 Page - Texas Instruments |
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ADS8380 Datasheet(HTML) 6 Page - Texas Instruments |
6 / 35 page www.ti.com TIMING CHARACTERISTICS (1) (2) (3) (4) ADS8380 SLAS387A – NOVEMBER 2004 – REVISED DECEMBER 2004 ADS8380I/ADS8380IB REF PARAMETER UNIT FIGURE MIN TYP MAX CONVERSION AND SAMPLING td1 Delay time, conversion start command to conversion start (aperture delay) 10 ns 41,43 td2 Delay time, conversion end to BUSY fall 5 ns 41 – 43 td4 Delay time, conversion start command to BUSY rise 20 ns 41 td3 Delay time, CONVST rise to sample start 5 ns 43 td5 Delay time, CS fall to sample start 10 ns 43 td6 Delay time, conversion abort command to BUSY fall 10 ns 44 DATA READ OPERATION td12 Delay time, CS fall to MSB valid 3 15 ns 45 td15 Delay time, FS rise to MSB valid 6 18 ns 46,47 td7 Delay time, BUSY fall to MSB valid (if FS is high when BUSY falls) 18 ns 47 td13 Delay time, SCLK rise to bit valid 2 10 ns 45– 47 td14 Delay time, CS rise to SDO 3-state 6 ns 45 MISCELLANEOUS td10 Delay time, PD rise to SDO 3-state 55 ns 53,54 Nap mode 300 ns 55 Delay time, total Full power down (external reference used with or without td11 + 2x 54 td18 device resume 1-µF||0.1-µF capacitor on REFOUT) conversions time Full power down (internal reference used with or without 25(4) ms 53 1-µF||0.1-µF capacitor on REFOUT) td11 Delay time, untrimmed circuit full power-down resume time 1 ms 53,54 Delay time, device Nap 200 ns 55 td16 power-down time Full power down (internal/external reference used) 10 µs 53,54 Delay time, trimmed internal reference settling (either by turning on supply or td17 4 ms 53 resuming from full power-down mode), with 1-µF||0.1-µF capacitor on REFOUT (1) All input signals are specified with tr = tf = 5 ns (10% to 90% of VDD) and timed from a voltage level of (VIL + VIH)/2. (2) All specifications typical at –40°C to 85°C, +VA = +4.75 V to +5.25 V, +VBD = +2.7 V to +5.25 V. (3) All digital output signals loaded with 10-pF capacitors. (4) Including td11, two conversions (time to cycle CONVST twice), and td17. 6 Submit Documentation Feedback |
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