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ADC122S051CIMM bảng dữ liệu(PDF) 6 Page - Texas Instruments |
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ADC122S051CIMM bảng dữ liệu(HTML) 6 Page - Texas Instruments |
6 / 28 page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 2 3 4 5 6 7 8 Track Hold Power Up Track Hold b7 b6 b5 b4 b3 b2 b1 b0 b7 b6 b5 b4 b3 b2 b1 b0 9 10 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 DB11 DB10 DB9 DB8 DB7 DIN DOUT Power Up SCLK CS Power Down Control register Control register ADC122S051 SNAS257E – NOVEMBER 2004 – REVISED MARCH 2013 www.ti.com ADC122S051/ADC122S051Q Timing Specifications (1) The following specifications apply for VA = +2.7V to 5.25V, GND = 0V, fSCLK = 3.2 MHz to 8 MHz, fSAMPLE = 200 ksps to 500 ksps, CL = 35 pF, Boldface limits apply for TA = TMIN to TMAX: all other limits TA = 25°C. Limits Symbol Parameter Conditions Typical Units (2) VA = +3.0V −3.5 tCSU Setup Time SCLK High to CS Falling Edge See (3) 10 ns (min) VA = +5.0V −0.5 VA = +3.0V +4.5 tCLH Hold time SCLK Low to CS Falling Edge See (3) 10 ns (min) VA = +5.0V +1.5 VA = +3.0V +4 tEN Delay from CS Until DOUT active 30 ns (max) VA = +5.0V +2 VA = +3.0V +14.5 tACC Data Access Time after SCLK Falling Edge 30 ns (max) VA = +5.0V +13 tSU Data Setup Time Prior to SCLK Rising Edge +3 10 ns (min) tH Data Valid SCLK Hold Time +3 10 ns (min) 0.3 x tCH SCLK High Pulse Width 0.5 x tSCLK ns (min) tSCLK 0.3 x tCL SCLK Low Pulse Width 0.5 x tSCLK ns (min) tSCLK VA = +3.0V 1.8 Output Falling VA = +5.0V 1.3 tDIS CS Rising Edge to DOUT High-Impedance 20 ns (max) VA = +3.0V 1.0 Output Rising VA = +5.0V 1.0 (1) PPAP (Production Part Approval Process) documentation of the device technology, process and qualification is available from Texas Instruments upon request. (2) Tested limits are specified to TI's AOQL (Average Outgoing Quality Level). (3) Clock may be either high or low when CS is asserted as long as setup and hold times tCSU and tCLH are strictly observed. Timing Diagrams Figure 1. Operational Timing Diagram 6 Submit Documentation Feedback Copyright © 2004–2013, Texas Instruments Incorporated Product Folder Links: ADC122S051 |
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