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ADC122S051CIMM Arkusz danych(PDF) 5 Page - Texas Instruments |
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ADC122S051CIMM Arkusz danych(HTML) 5 Page - Texas Instruments |
5 / 28 page ADC122S051 www.ti.com SNAS257E – NOVEMBER 2004 – REVISED MARCH 2013 ADC122S051/ADC122S051Q Converter Electrical Characteristics (1)(2) (continued) 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 unless otherwise noted. Boldface limits apply for TA = TMIN to TMAX: all other limits TA = 25°C. Limits Symbol Parameter Conditions Typical Units (3) IOZH, IOZL TRI-STATE Leakage Current 0.005 ±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 Analog Supply Voltage 5.25 V (max) VA = +5.25V, 1.9 2.4 mA (max) fSAMPLE = 500 ksps, fIN = 40 kHz Supply Current, Normal Mode (Operational, CS low) VA = +3.6V, 0.84 1.2 mA (max) fSAMPLE = 500 ksps, fIN = 40 kHz IA VA = +5.25V, 60 nA fSAMPLE = 0 ksps Supply Current, Shutdown (CS high) VA = +3.6V, 38 nA fSAMPLE = 0 ksps VA = +5.25V 10 12.6 mW (max) Power Consumption, Normal Mode (Operational, CS low) VA = +3.6V 3.0 4.3 mW (max) PD VA = +5.25V 0.32 µW Power Consumption, Shutdown (CS high) VA = +3.6V 0.14 µW AC ELECTRICAL CHARACTERISTICS 3.2 MHz (min) fSCLK Maximum Clock Frequency See (4) 8 MHz (max) 200 ksps (min) fS Sample Rate See (4) 500 ksps (max) tCONV Conversion Time 13 SCLK cycles 30 % (min) DC SCLK Duty Cycle fSCLK = 8 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 specified. The device is functional over a wider range which is specified under Operating Ratings. Copyright © 2004–2013, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: ADC122S051 |
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