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AD7853 датащи(PDF) 2 Page - Analog Devices |
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AD7853 датащи(HTML) 2 Page - Analog Devices |
2 / 34 page Parameter A Version 1 B Version 1 Units Test Conditions/Comments DYNAMIC PERFORMANCE Signal to Noise + Distortion Ratio 3 70 71 dB min Typically SNR Is 72 dB (SNR) VIN = 10 kHz Sine Wave, fSAMPLE = 200 kHz (100 kHz) Total Harmonic Distortion (THD) –78 –78 dB max VIN = 10 kHz Sine Wave, fSAMPLE = 200 kHz (100 kHz) Peak Harmonic or Spurious Noise –78 –78 dB max VIN = 10 kHz Sine Wave, fSAMPLE = 200 kHz (100 kHz) Intermodulation Distortion (IMD) Second Order Terms –78 –80 dB typ fa = 9.983 kHz, fb = 10.05 kHz, fSAMPLE = 200 kHz (100 kHz) Third Order Terms –78 –80 dB typ fa = 9.983 kHz, fb = 10.05 kHz, fSAMPLE = 200 kHz (100 kHz) DC ACCURACY Resolution 12 12 Bits Integral Nonlinearity ±1 ±1 LSB max 2.5 V External Reference VDD = 3 V, VDD = 5 V (B Grade Only) ±1 ±0.5 LSB max 5 V External Reference VDD = 5 V ( ±1) LSB max (L Version, 5 V External Reference, VDD = 5 V) ( ±1) LSB max (L Version) Differential Nonlinearity ±1 ±1 LSB max Guaranteed No Missed Codes to 12 Bits. 2.5 V External Reference VDD = 3 V, 5 V External Reference VDD = 5 V Total Unadjusted Error ±1 ±1 LSB typ Unipolar Offset Error ±1 ±1 LSB max 2.5 V External Reference VDD = 3 V, 5 V External Reference VDD = 5 V Unipolar Offset Error ( ±2.5) ( ±2.5) LSB max (L Versions, 2.5 V External Reference VDD = 3 V, 5 V External Reference VDD = 5 V) Positive Full-Scale Error ±2.5 ±2.5 LSB max 2.5 V External Reference VDD = 3 V, 5 V External Reference VDD = 5 V Positive Full-Scale Error ( ±4) ( ±4) LSB max (L Versions, 2.5 V External Reference VDD = 3 V, 5 V External Reference VDD = 5 V) Negative Full-Scale Error ±2.5 ±2.5 LSB max 2.5 V External Reference VDD = 3 V, 5 V External Reference VDD = 5 V Negative Full-Scale Error ( ±4) ( ±4) LSB max (L Versions, 2.5 V External Reference VDD = 3 V, 5 V External Reference VDD = 5 V) Bipolar Zero Error ±2 ±2 LSB max 2.5 V External Reference VDD = 3 V, 5 V External Reference VDD = 5 V Bipolar Zero Error ( ±2.5) ( ±2.5) LSB max (L Versions, 2.5 V External Reference VDD = 3 V, 5 V External Reference VDD = 5 V) ANALOG INPUT Input Voltage Ranges 0 to VREF 0 to VREF Volts i.e., AIN(+) – AIN(–) = 0 to VREF, AIN(–) Can Be Biased Up But AIN(+) Cannot Go Below AIN(–) ±V REF/2 ±V REF/2 Volts i.e., AIN(+) – AIN(–) = –VREF/2 to +VREF/2, AIN(–) Should Be Biased to +VREF/2 and AIN(+) Can Go Below AIN(–) But Cannot Go Below 0 V Leakage Current ±1 ±1 µA max Input Capacitance 20 20 pF typ REFERENCE INPUT/OUTPUT REFIN Input Voltage Range 2.3/VDD 2.3/VDD V min/max Functional from 1.2 V Input Impedance 150 150 k Ω typ REFOUT Output Voltage 2.3/2.7 2.3/2.7 V min/max REFOUT Tempco 20 20 ppm/ °C typ LOGIC INPUTS Input High Voltage, VINH 2.4 2.4 V min AVDD = DVDD = 4.5 V to 5.5 V 2.1 2.1 V min AVDD = DVDD = 3.0 V to 3.6 V Input Low Voltage, VINL 0.8 0.8 V max AVDD = DVDD = 4.5 V to 5.5 V 0.6 0.6 V max AVDD = DVDD = 3.0 V to 3.6 V Input Current, IIN ±10 ±10 µA max Typically 10 nA, VIN = 0 V or VDD Input Capacitance, CIN 4 10 10 pF max AD7853/AD7853L–SPECIFICATIONS1, 2 REV. B –2– (AVDD = DVDD = +3.0 V to +5.5 V, REFIN/REFOUT = 2.5 V External Reference, fCLKIN = 4 MHz (1.8 MHz B Grade (0 C to +70 C), 1 MHz A and B Grades (–40 C to +85 C) for L Version); fSAMPLE = 200 kHz (AD7853) 100 kHz (AD7853L); SLEEP = Logic High; T A = TMIN to TMAX, unless otherwise noted.) Specifications in () apply to the AD7853L. |
Аналогичный номер детали - AD7853 |
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Аналогичное описание - AD7853 |
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