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ADC081C021CIMKX Fiches technique(PDF) 8 Page - Texas Instruments |
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ADC081C021CIMKX Fiches technique(HTML) 8 Page - Texas Instruments |
8 / 41 page ADC081C021, ADC081C027 SNAS447C – FEBRUARY 2008 – REVISED MARCH 2013 www.ti.com A.C. and Timing Characteristics The following specifications apply for VA = +2.7V to +5.5V. Boldface limits apply for TMIN ≤ TA ≤ TMAX and all other limits are at TA = 25°C, unless otherwise specified. Units Symbol Parameter Conditions(1) Typical(2) Limits(1)(2) (Limits) CONVERSION RATE Conversion Time 1 µs fSCL = 100kHz 5.56 ksps fSCL = 400kHz 22.2 ksps fCONV Conversion Rate fSCL = 1.7MHz 94.4 ksps fSCL = 3.4MHz 188.9 ksps DIGITAL TIMING SPECS (SCL, SDA) Standard Mode 100 kHz (max) Fast Mode 400 kHz (max) fSCL Serial Clock Frequency High Speed Mode, Cb = 100pF 3.4 MHz (max) High Speed Mode, Cb = 400pF 1.7 MHz (max) Standard Mode 4.7 us (min) Fast Mode 1.3 us (min) tLOW SCL Low Time High Speed Mode, Cb = 100pF 160 ns (min) High Speed Mode, Cb = 400pF 320 ns (min) Standard Mode 4.0 us (min) Fast Mode 0.6 us (min) tHIGH SCL High Time High Speed Mode, Cb = 100pF 60 ns (min) High Speed Mode, Cb = 400pF 120 ns (min) Standard Mode 250 ns (min) tSU;DAT Data Setup Time Fast Mode 100 ns (min) High Speed Mode 10 ns (min) 0 us (min) Standard Mode(3) 3.45 us (max) 0 us (min) Fast Mode(3) 0.9 us (max) tHD;DAT Data Hold Time 0 ns (min) High Speed Mode, Cb = 100pF 70 ns (max) 0 ns (min) High Speed Mode, Cb = 400pF 150 ns (max) Standard Mode 4.7 us (min) Setup time for a start or a repeated tSU;STA Fast Mode 0.6 us (min) start condition High Speed Mode 160 ns (min) Standard Mode 4.0 us (min) Hold time for a start or a repeated start tHD;STA Fast Mode 0.6 us (min) condition High Speed Mode 160 ns (min) Bus free time between a stop and start Standard Mode 4.7 us (min) tBUF condition Fast Mode 1.3 us (min) Standard Mode 4.0 us (min) tSU;STO Setup time for a stop condition Fast Mode 0.6 us (min) High Speed Mode 160 ns (min) Standard Mode 1000 ns (max) 20+0.1Cb ns (min) Fast Mode 300 ns (max) trDA Rise time of SDA signal 10 ns (min) High Speed Mode, Cb = 100pF 80 ns (max) 20 ns (min) High Speed Mode, Cb = 400pF 160 ns (max) (1) Cb refers to the capacitance of one bus line. Cb is expressed in pF units. (2) Typical figures are at TJ = 25°C, and represent most likely parametric norms. Test limits are specified to AOQL (Average Outgoing Quality Level). (3) The ADC081C021 will provide a minimum data hold time of 300ns to comply with the I2C Specification. 8 Submit Documentation Feedback Copyright © 2008–2013, Texas Instruments Incorporated Product Folder Links: ADC081C021 ADC081C027 |
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