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AD7713AN Folha de dados(PDF) 2 Page - Analog Devices |
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AD7713AN Folha de dados(HTML) 2 Page - Analog Devices |
2 / 28 page Parameter A, S Versions 1 Units Conditions/Comments STATIC PERFORMANCE No Missing Codes 24 Bits min Guaranteed by Design. For Filter Notches ≤ 12 Hz 22 Bits min For Filter Notch = 20 Hz 18 Bits min For Filter Notch = 50 Hz 15 Bits min For Filter Notch = 100 Hz 12 Bits min For Filter Notch = 200 Hz Output Noise See Tables I & II Depends on Filter Cutoffs and Selected Gain Integral Nonlinearity ±0.0015 % of FSR max Filter Notches ≤ 12 Hz; Typically ±0.0003% Positive Full-Scale Error2, 3 See Note 4 Full-Scale Drift 5 1 µV/°C typ For Gains of 1, 2 0.3 µV/°C typ For Gains of 4, 8, 16, 32, 64, 128 Unipolar Offset Error 2 See Note 4 Unipolar Offset Drift5 0.5 µV/°C typ For Gains of 1, 2 0.25 µV/°C typ For Gains of 4, 8, 16, 32, 64, 128 Bipolar Zero Error2 See Note 4 Bipolar Zero Drift 5 0.5 µV/°C typ For Gains of 1, 2 0.25 µV/°C typ For Gains of 4, 8, 16, 32, 64, 128 Gain Drift 2 ppm/ °C typ Bipolar Negative Full-Scale Error2 ±0.004 % of FSR max Typically ±0.0006% Bipolar Negative Full-Scale Drift 5 1 µV/°C typ For Gains of 1, 2 0.3 µV/°C typ For Gains of 4, 8, 16, 32, 64, 128 ANALOG INPUTS Input Sampling Rate, fS See Table III Normal-Mode 50 Hz Rejection 6 100 dB min For Filter Notches of 2 Hz, 5 Hz, 10 Hz, 25 Hz, 50 Hz, ±0.02 × f NOTCH Normal-Mode 60 Hz Rejection6 100 dB min For Filter Notches of 2 Hz, 6 Hz, 10 Hz, 30 Hz, 60 Hz, ±0.02 × f NOTCH AIN1, AIN2 7 Input Voltage Range8 For Normal Operation. Depends on Gain Selected. 0 to +VREF 9 V max Unipolar Input Range (B/U Bit of Control Register = 1) ±V REF V max Bipolar Input Range (B/U Bit of Control Register = 0) Common-Mode Rejection (CMR) 100 dB min At DC Common-Mode 50 Hz Rejection6 150 dB min For Filter Notches of 2 Hz, 5 Hz, 10 Hz, 25 Hz, 50 Hz, ±0.02 × f NOTCH Common-Mode 60 Hz Rejection 6 150 dB min For Filter Notches of 2 Hz, 6 Hz, 10 Hz, 30 Hz, 60 Hz, ±0.02 × f NOTCH Common-Mode Voltage Range 10 AGND to AVDD V min to V max DC Input Leakage Current @ +25 °C 10 pA max TMIN to TMAX 1 nA max Sampling Capacitance 6 20 pF max AIN3 Input Voltage Range 0 to + 4 × V REF V max For Normal Operation. Depends on Gain Selected Gain Error 11 ±0.05 % typ Additional Error Contributed by Resistor Attenuator Gain Drift 1 ppm/ °C typ Additional Drift Contributed by Resistor Attenuator Offset Error 11 4 mV max Additional Error Contributed by Resistor Attenuator Input Impedance 30 k Ω min NOTES 1Temperature range is as follows: A Version, –40 °C to +85°C; S Version, –55°C to +125°C. 2Applies after calibration at the temperature of interest. 3Positive full-scale error applies to both unipolar and bipolar input ranges. 4These errors will be of the order of the output noise of the part as shown in Table I after system calibration. These errors will be 20 µV typical after self-calibration or background calibration. 5Recalibration at any temperature or use of the background calibration mode will remove these drift errors. 6These numbers are guaranteed by design and/or characterization. 7The AIN1 and AIN2 analog inputs presents a very high impedance dynamic load which varies with clock frequency and input sample rate. The maximum recommended source resistance depends on the selected gain. 8The analog input voltage range on the AIN1(+) and AIN2(+) inputs is given here with respect to the voltage on the AIN1(–) and AIN2 (–) inputs. The input voltage range on the AIN3 input is with respect to AGND. The absolute voltage on the AIN1 and AIN2 inputs should not go more positive than A VDD + 30 mV or more negative than AGND – 30 mV. 9V REF = REF IN(+) – REF IN(–). 10This common-mode voltage range is allowed provided that the input voltage on AIN(+) and AIN(–) does not exceed A V DD + 30 mV and AGND – 30 mV. 11This error can be removed using the system calibration capabilities of the AD7713. This error is not removed by the AD7713’s self-calibration feature. The offset drift on the AIN3 input is four times the value given in the Static Performance section. –2– REV. C (AVDD = +5 V 5%; DVDD = +5 V 5%; REF IN(+) = +2.5 V; REF IN(–) = AGND; MCLK IN = 2 MHz unless otherwise noted. All specifications TMIN to TMAX unless otherwise noted.) AD7713–SPECIFICATIONS |
Nº de peça semelhante - AD7713AN |
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Descrição semelhante - AD7713AN |
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