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ADS1218Y2K Datasheet(PDF) 7 Page - Burr-Brown (TI) |
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ADS1218Y2K Datasheet(HTML) 7 Page - Burr-Brown (TI) |
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7 / 28 page  7 ADS1218 SBAS187 SPEC DESCRIPTION MIN MAX UNITS t1 SCLK Period 4tOSC Periods 3 DRDY Periods t2 SCLK Pulse Width, HIGH and LOW 200 ns t3 CS LOW to first SCLK Edge; Setup Time 0 ns t4 DIN Valid to SCLK Edge; Setup Time 50 ns t5 Valid DIN to SCLK Edge; Hold Time 50 ns t6 Delay between last SCLK edge for DIN and first SCLK edge for DOUT: RDATA, RDATAC, RREG, WREG, RRAM, WRAM 50 tOSC Periods CSREG, CSRAMX, CSRAM 200 tOSC Periods CHKARAM, CHKARAMX 1100 tOSC Periods t7(1) SCLK Edge to Valid New DOUT 50 ns t8(1) SCLK Edge to DOUT, Hold Time 0 ns t9 Last SCLK Edge to DOUT Tri-State 6 10 tOSC Periods NOTE: DOUT goes tri-state immediately when CS goes HIGH. t10 CS LOW time after final SCLK edge 0 ns t11 Final SCLK edge of one op code until first edge SCLK of next command: RREG, WREG, RRAM, WRAM, CSRAMX, CSARAMX, CSRAM, CSARAM, CSREG, SLEEP, RDATA, RDATAC, STOPC 4 tOSC Periods DSYNC, RESET 16 tOSC Periods CSFL 33,000 tOSC Periods CREG, CRAM 220 tOSC Periods RF2R 1090 tOSC Periods CREGA 1600 tOSC Periods WR2F 76,850 (SPEED = 0) tOSC Periods 101,050 (SPEED = 1) 4tOSC Periods SELFGCAL, SELFOCAL, SYSOCAL, SYSGCAL 7 DRDY Periods SELFCAL 14 DRDY Periods RESET (Command, SCLK, or Pin) 16 tOSC Periods t12 SCLK Reset, First HIGH Pulse 300 500 tOSC Periods t13 SCLK Reset, LOW Pulse 5 tOSC Periods t14 SCLK Reset, Second HIGH Pulse 550 750 tOSC Periods t15 SCLK Reset, Third HIGH Pulse 1050 1250 tOSC Periods t16 Pulse Width 4tOSC Periods t17 DOR Data Not Valid 4 tOSC Periods NOTE: (1) Load = 20pF 10kΩ to DGND. TIMING SPECIFICATIONS TIMING SPECIFICATION TABLES t 4 MSB (Command or Command and Data) LSB t 5 t 1 t 3 CS SCLK (POL = 0) D IN D OUT NOTE: (1) Bit Order = 0. t 7 MSB(1) LSB(1) t 8 t 10 t 2 t 2 t 11 t 6 t 9 SCLK (POL = 1) SCLK Reset Waveform DDR Update Timing t 12 t 14 t 15 t 13 t 13 SCLK t 17 DRDY t 16 RESET, DSYNC, PDWN ADS1218 Resets On Falling Edge |
Similar Part No. - ADS1218Y2K |
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Similar Description - ADS1218Y2K |
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