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AD7933 Datasheet(PDF) 6 Page - Analog Devices |
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AD7933 Datasheet(HTML) 6 Page - Analog Devices |
6 / 32 page AD7933/AD7934 Preliminary Technical Data Parameter B Version1 Unit Test Conditions/Comments VREF Output Impedance 10 Ω typ VREF Input Capacitance 15 pF typ When in track-and-hold 25 pF typ When in track-and-hold LOGIC INPUTS Input High Voltage, VINH 2.4 V min Input Low Voltage, VINL 0.8 V max Input Current, IIN ±1 µA max Typically 10 nA, VIN = 0 V or VDRIVE Input Capacitance, CIN5 10 pF max LOGIC OUTPUTS Output High Voltage, VOH 2.4 V min ISOURCE = 200 µA; Output Low Voltage, VOL 0.4 V max ISINK = 200 µA Floating-State Leakage Current ±10 µA max Floating-State Output Capacitance5 10 pF max Output Coding CODING bit = 0 Straight (Natural) Binary Twos Complement CODING bit = 1 CONVERSION RATE Conversion Time t2 + 13 tclk + t20 ns Track-and-Hold Acquisition Time 135 ns max Full scale step input Throughput Rate 1.5 MSPS max POWER REQUIREMENTS VDD 2.7/5.25 V min/max VDRIVE 2.7 /5.25 V min/max IDD7 Digital I/Ps = 0 V or VDRIVE Normal Mode(Static) 0.5 mA typ VDD = 2.7 V to 5.25 V, SCLK on or off Normal Mode (Operational) 3.2 mA max VDD = 4.75 V to 5.25 V 2.6 mA max VDD = 2.7 V to 3.6 V Auto StandBy Mode 1.55 mA typ FSAMPLE = 250 kSPS 90 µA max (Static) Auto Shutdown Mode 1 mA typ FSAMPLE = 250 kSPS 1 µA max (Static) Full Shutdown Mode 1 µA max SCLK on or off Power Dissipation Normal Mode (Operational) 16 mW max VDD = 5 V 8 mW max VDD = 3 V Auto Standby Mode (Static) 450 µW max VDD = 5 V 270 µW max VDD = 3 V Auto Shutdown Mode (Static) 5 µW max VDD = 5 V 3 µW max VDD = 3 V Full Shutdown Mode 5 µW max VDD = 5 V 3 µW max VDD = 3 V 1 Temperature ranges is as follows: B Versions: −40°C to +85°C. 2 See Terminology section. 3 Analog inputs with slew rates exceeding 27 V/µs (full-scale input sine wave > 3.5 MHz) within the acquisition time may cause an incorrect result to be returned by the converter. 4 For full common mode range see 5 Sample tested during initial release to ensure compliance. 6 This device is operational with an external reference in the range 0.1 V to 3.5 V in differential mode and 0.1 V to VDD in pseudo-differential and single-ended modes. See the Reference Section for more information. 7 Measured with a midscale dc input. Rev. PrG | Page 6 of 32 |
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