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ADC104S021 Folha de dados(PDF) 5 Page - Texas Instruments |
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ADC104S021 Folha de dados(HTML) 5 Page - Texas Instruments |
5 / 27 page ADC104S021 www.ti.com SNAS278H – FEBRUARY 2005 – REVISED MARCH 2013 ADC104S021/ADC104S021Q Converter Electrical Characteristics (1)(2) (continued) The following specifications apply for VA = +2.7V to 5.25V, GND = 0V, CL = 50 pF, fSCLK = 0.8 MHz to 3.2 MHz, fSAMPLE = 50 ksps to 200 ksps, unless otherwise noted. Boldface limits apply for TA = TMIN to TMAX; all other limits TA = 25°C. Symbol Parameter Conditions Typical Limits (3) Units IOZH, IOZL TRI-STATE® Leakage Current ±0.01 ±1 µA (max) COUT TRI-STATE® Output Capacitance 2 4 pF (max) Output Coding Straight (Natural) Binary POWER SUPPLY CHARACTERISTICS (CL = 10 pF) 2.7 V (min) VA Supply Voltage 5.25 V (max) VA = +5.25V, 1.3 1.8 mA (max) fSAMPLE = 200 ksps, fIN = 40 kHz Supply Current, Normal Mode (Operational, CS low) VA = +3.6V, 0.55 0.7 mA (max) fSAMPLE = 200 ksps, fIN = 40 kHz IA VA = +5.25V, 90 nA fSAMPLE = 0 ksps Supply Current, Shutdown (CS high) VA = +3.6V, 32 nA fSAMPLE = 0 ksps VA = +5.25V 6.9 9.5 mW (max) Power Consumption, Normal Mode (Operational, CS low) VA = +3.6V 1.94 2.5 mW (max) PD VA = +5.25V 0.47 µW Power Consumption, Shutdown (CS high) VA = +3.6V 0.12 µW AC ELECTRICAL CHARACTERISTICS 0.8 MHz (min) fSCLK Clock Frequency (4) 3.2 MHz (max) 50 ksps (min) fS Sample Rate (4) 200 ksps (max) tCONV Conversion Time 13 SCLK cycles 30 % (min) DC SCLK Duty Cycle fSCLK = 3.2 MHz 50 70 % (max) tACQ Track/Hold Acquisition Time Full-Scale Step Input 3 SCLK cycles Throughput Time Acquisition Time + Conversion Time 16 SCLK cycles (4) This is the frequency range over which the electrical performance is ensured. The device is functional over a wider range which is specified under Operating Ratings. ADC104S021/ADC104S021Q Timing Specifications (1) The following specifications apply for VA = +2.7V to 5.25V, GND = 0V, CL = 50 pF, fSCLK = 0.8 MHz to 3.2 MHz, fSAMPLE = 50 ksps to 200 ksps, Boldface limits apply for TA = TMIN to TMAX: all other limits TA = 25°C. Symbol Parameter Conditions Typical Limits (2) Units VA = +3.0V −3.5 tCSU Setup Time SCLK High to CS Falling Edge (3) 10 ns (min) VA = +5.0V −0.5 VA = +3.0V +4.5 tCLH Hold time SCLK Low to CS Falling Edge (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 +16.5 tACC Data Access Time after SCLK Falling Edge 30 ns (max) VA = +5.0V +15 tSU Data Setup Time Prior to SCLK Rising Edge +3 10 ns (min) (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 ensured 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. Copyright © 2005–2013, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: ADC104S021 |
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