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AD7714AR-5 Datasheet(PDF) 5 Page - Analog Devices |
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AD7714AR-5 Datasheet(HTML) 5 Page - Analog Devices |
5 / 40 page Parameter Y Versions1 Units Conditions/Comments STATIC PERFORMANCE No Missing Codes 24 Bits min Guaranteed by Design. For Filter Notches ≤ 60 Hz 22 Bits min For Filter Notch = 100 Hz 18 Bits min For Filter Notch = 250 Hz 15 Bits min For Filter Notch = 500 Hz 12 Bits min For Filter Notch = 1 kHz Output Noise See Tables I to IV Depends on Filter Cutoffs and Selected Gain Integral Nonlinearity ±0.001 % of FSR max Filter Notches ≤ 60 Hz. Unipolar Offset Error See Note 2 Unipolar Offset Drift3 0.4 µV/°C typ For Gains of 1, 2, 4 0.1 µV/°C typ For Gains of 8, 16, 32, 64, 128 Bipolar Zero Error See Note 2 Bipolar Zero Drift3 0.4 µV/°C typ For Gains of 1, 2, 4 0.1 µV/°C typ For Gains of 8, 16, 32, 64, 128 Positive Full-Scale Error4 See Note 2 Full-Scale Drift3, 5 0.4 µV/°C typ For Gains of 1, 2, 4 0.1 µV/°C typ For Gains of 8, 16, 32, 64, 128 Gain Error6 See Note 2 Gain Drift3, 7 0.2 ppm of FSR/ °C typ Bipolar Negative Full-Scale Error2 ±0.0015 % of FSR max AVDD = 5 V. Typically ±0.0004% ±0.003 % of FSR max AVDD = 3 V. Typically ±0.0004% Bipolar Negative Full-Scale Drift3 1 µV/°C typ For Gains of 1 to 4 0.6 µV/°C typ For Gains of 8 to 128 ANALOG INPUTS/REFERENCE INPUTS Specifications for AIN and REF IN Unless Noted Input Common-Mode Rejection (CMR)8 90 dB min At DC. Typically 102 dB. Normal-Mode 50 Hz Rejection8 100 dB min For Filter Notches of 10 Hz, 25 Hz, 50 Hz, ±0.02 × f NOTCH Normal-Mode 60 Hz Rejection8 100 dB min For Filter Notches of 10 Hz, 30 Hz, 60 Hz, ±0.02 × f NOTCH Common-Mode 50 Hz Rejection8 150 dB min For Filter Notches of 10 Hz, 25 Hz, 50 Hz, ±0.02 × f NOTCH Common-Mode 60 Hz Rejection8 150 dB min For Filter Notches of 10 Hz, 30 Hz, 60 Hz, ±0.02 × f NOTCH Absolute/Common-Mode REF IN Voltage8 AGND to AVDD V min to V max Absolute/Common-Mode AIN Voltage8, 9 AGND – 30 mV V min BUF Bit of Setup Register = 0 AVDD + 30 mV V max Absolute/Common-Mode AIN Voltage8, 9 AGND + 50 mV V min BUF Bit of Setup Register = 1 AVDD – 1.5 V V max AIN DC Input Current8 1 nA max AIN Sampling Capacitance8 7 pF max AIN Differential Voltage Range10 0 to +VREF/GAIN 11 nom Unipolar Input Range (B/U Bit of Filter High Register = 1) ±V REF/GAIN nom Bipolar Input Range (B/U Bit of Filter High Register = 0) AIN Input Sampling Rate, fS GAIN × f CLK IN/64 For Gains of 1 to 4 fCLK IN/8 For Gains of 8 to 128 Reference Input Range REF IN(+) – REF IN(–) Voltage 1/1.75 V min/max AVDD = 2.7 V to 3.3 V. VREF = 1.25 ± 1% for Specified Performance REF IN(+) – REF IN(–) Voltage 1/3.5 V min/max AVDD = 4.75 V to 5.25 V. VREF = 2.5 ± 1% for Specified Performance REF IN Input Sampling Rate, fS fCLK IN/64 LOGIC INPUTS Input Current ±10 µA max All Inputs Except MCLK IN VINL, Input Low Voltage 0.8 V max DVDD = 5 V 0.4 V max DVDD = 3 V VINH, Input High Voltage 2.4 V min DVDD = 5 V 2 V min DVDD = 3 V SCLK & DIN Only (Schmitt Triggered Input) DVDD = 5 V NOMINAL VT+ 1.4/3 V min/V max VT– 0.8/1.4 V min/V max VT+ – VT– 0.4/0.8 V min/V max SCLK & DIN Only (Schmitt Triggered Input) DVDD = 3 V NOMINAL VT+ 1/2.5 V min/V max VT– 0.4/1.1 V min/V max VT+ – VT– 0.375/0.8 V min/V max MCLK In Only DVDD = 5 V NOMINAL VINL, Input Low Voltage 0.8 V max VINH, Input High Voltage 3.5 V min MCLK In Only DVDD = 3 V NOMINAL VINL, Input Low Voltage 0.4 V max VINH, Input High Voltage 2.5 V min LOGIC OUTPUTS (Including MCLK OUT) VOL, Output Low Voltage 0.4 V max ISINK = 800 µA with DVDD = 5 V. Except for MCLK OUT 12 VOL, Output Low Voltage 0.4 V max ISINK = 100 µA with DVDD = 3 V. Except for MCLK OUT 12 VOH, Output High Voltage 4 V min ISOURCE = 200 µA with DVDD = 5 V. Except for MCLK OUT 12 AD7714Y–SPECIFICATIONS (AV DD = DVDD = +2.7 V to +3.3 V or 4.75 V to 5.25 V, REF IN(+) = +1.25 V; with AVDD = 3 V and +2.5 V with AVDD = 5 V; REF IN(–) = AGND; MCLK IN = 2.4576 MHz unless otherwise noted. All specifications TMIN to TMAX unless otherwise noted.) AD7714 REV. C –5– |
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