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ADS8881IDRCR Datasheet(PDF) 11 Page - Texas Instruments |
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ADS8881IDRCR Datasheet(HTML) 11 Page - Texas Instruments |
11 / 57 page 1 2 17 18 CONVST SCLK DOUT 2 tsu-CK-CNV 19 20 35 36 D17 D16 D1 D0 D17 D16 D1 D0 DOUT 1, DIN 2 D17 D16 D1 D0 1/fsample tACQ tconv- max th-CK-CNV Device 2 Data Device 1 Data DIN 1 = LOW tsu-DI-CK ADS8881C, ADS8881I www.ti.com SBAS547D – MAY 2013 – REVISED AUGUST 2015 7.8 Timing Requirements: Daisy-Chain All specifications are at AVDD = 3 V, DVDD = 3 V, and over the operating free-air temperature range, unless otherwise noted. MIN TYP MAX UNIT tACQ Acquisition time 290 ns TA in the range -40°C to 85°C 500 710 tconv Conversion time ns TA in the range 0°C to 70°C 500 700 tconv Conversion time 500 ns 1/fsample Time between conversions 1000 ns tsu-CK-CNV Setup time: SCLK valid to CONVST rising edge 5 ns th-CK-CNV Hold time: SCLK valid from CONVST rising edge 5 ns tsu-DI-CNV Setup time: DIN low to CONVST rising edge (see Figure 2) 7.5 ns th-DI-CNV Hold time: DIN low from CONVST rising edge (see Figure 63) 0 ns tsu-DI-CK Setup time: DIN valid to SCLK falling edge 1.5 ns Figure 3. Daisy-Chain Operation: Two Devices NOTE: Figure 3 shows the timing diagram for the Daisy-Chain Mode Without a Busy Indicator interface option. However, the timing parameters specified in Timing Requirements: Daisy-Chain are also applicable for the Daisy- Chain Mode With a Busy Indicator interface option, unless otherwise specified; see the Device Functional Modes section for specific details for each interface option. Copyright © 2013–2015, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Links: ADS8881C ADS8881I |
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