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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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AD7703BR Datenblatt(PDF) 3 Page - Analog Devices |
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AD7703BR Datenblatt(HTML) 3 Page - Analog Devices |
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3 / 17 page  REV. E –2– AD7703–SPECIFICATIONS Parameter A/S Version 2 B Version 2 C Version 2 Unit Test Conditions/Comments STATIC PERFORMANCE Resolution 20 20 20 Bits Integral Nonlinearity, TMIN to TMAX ±0.0015 ±0.0007 ±0.0003 % FSR typ 25°C ±0.003 ±0.0015 ±0.0008 % FSR max TMIN to TMAX ±0.003 ±0.0015 ±0.0012 % FSR max Differential Nonlinearity, TMIN to TMAX ±0.5 ±0.5 ±0.5 LSB typ Guaranteed No Missing Codes Positive Full-Scale Error 3 ±4 ±4 ±4 LSB typ ±16 ±16 ±16 LSB max Full-Scale Drift 4 ±19/±37 ±19 ±19 LSB typ Unipolar Offset Error 3 ±4 ±4 ±4 LSB typ ±16 ±16 ±16 LSB max Unipolar Offset Drift 4 ±26 ±26 ±26 LSB typ Temp Range: 0°C to +70°C ±67 +48/–400 ±67 ±67 LSB typ Specified Temp Range Bipolar Zero Error 3 ±4 ±4 ±4 LSB typ ±16 ±16 ±16 LSB max Bipolar Zero Drift 4 ±13 ±13 ±13 LSB typ Temp Range: 0°C to +70°C ±34 +24/–200 ±34 ±34 LSB typ Specified Temp Range Bipolar Negative Full-Scale Errors 3 ±8 ±8 ±8 LSB typ ±32 ±32 ±32 LSB max Bipolar Negative Full-Scale Drift 4 ±10/±20 ±10 ±10 LSB typ Noise (Referred to Output) 1.6 1.6 1.6 LSB rms typ DYNAMIC PERFORMANCE Sampling Frequency, fS fCLKIN/256 fCLKIN/256 fCLKIN/256 Hz Output Update Rate, fOUT fCLKIN/1024 fCLKIN/1024 fCLKIN/1024 Hz Filter Corner Frequency, f–3 dB fCLKIN/409,600 fCLKIN/409,600 fCLKIN/409,600 Hz Settling Time to ±0.0007% FS 507904/fCLKIN 507904/fCLKIN 507904/fCLKIN sec For Full-Scale Input Step SYSTEM CALIBRATION Positive Full-Scale Calibration Range VREF + 0.1 VREF + 0.1 VREF + 0.1 V max System calibration applies to Positive Full-Scale Overrange VREF + 0.1 VREF + 0.1 VREF + 0.1 V max unipolar and bipolar ranges. Negative Full-Scale Overrange –(VREF + 0.1) –(VREF + 0.1) –(VREF + 0.1) V max After calibration, if AIN > VREF, Maximum Offset Calibration Ranges 5, 6 the device will output all 1s. Unipolar Input Range –(VREF + 0.1) –(VREF + 0.1) –(VREF + 0.1) V max If AIN < 0 (unipolar) or –VREF Bipolar Input Range –0.4 VREF to +0.4 VREF –0.4 VREF to +0.4 VREF –0.4 VREF to +0.4 VREF V max (bipolar), the device will Input Span 7 0.8 VREF 0.8 VREF 0.8 VREF V min output all 0s. 2 VREF + 0.2 2 VREF + 0.2 2 VREF + 0.2 V max ANALOG INPUT Unipolar Input Range 0 to 2.5 0 to 2.5 0 to 2.5 V Bipolar Input Range ±2.5 ±2.5 ±2.5 V Input Capacitance 20 20 20 pF typ Input Bias Current 1 111nA typ LOGIC INPUTS All Inputs Except CLKIN VINL, Input Low Voltage 0.8 0.8 0.8 V max VINH, Input High Voltage 2.0 2.0 2.0 V min CLKIN VINL, Input Low Voltage 0.8 0.8 0.8 V max VINH, Input High Voltage 3.5 3.5 3.5 V min IIN, Input Current 10 10 10 µA max LOGIC OUTPUTS VOL, Output Low Voltage 0.4 0.4 0.4 V max ISINK = 1.6 mA VOH, Output High Voltage DVDD – 1DVDD – 1DVDD – 1V min ISOURCE = 100 µA Floating State Leakage Current ±10 ±10 ±10 µA max Floating State Output Capacitance 999pF typ POWER REQUIREMENTS Power Supply Voltages Analog Positive Supply (AVDD) 4.5/5.5 4.5/5.5 4.5/5.5 V min/V max For Specified Performance Digital Positive Supply (DVDD) 4.5/AVDD 4.5/AVDD 4.5/AVDD V min/V max Analog Negative Supply (AVSS) –4.5/–5.5 –4.5/–5.5 –4.5/–5.5 V min/V max Digital Negative Supply (DVSS) –4.5/–5.5 –4.5/–5.5 –4.5/–5.5 V min/V max Calibration Memory Retention Power Supply Voltage 2.0 2.0 2.0 V min (TA = 25 C; AVDD = DVDD = +5 V; AVSS = DVSS = –5 V; VREF = +2.5 V; fCLKIN = 4.096 MHz; BP/ UP = +5 V; MODE = +5 V; A IN Source Resistance = 1 k 1 with 1 nF to AGND at A IN; unless otherwise noted.) |
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Ähnliche Beschreibung - AD7703BR |
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