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AD7705BR датащи(PDF) 2 Page - Analog Devices |
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AD7705BR датащи(HTML) 2 Page - Analog Devices |
2 / 32 page –2– REV. A AD7705/AD7706–SPECIFICATIONS (V DD = +3 V or 5 V, REF IN(+) = +1.225 V with VDD = 3 V and +2.5 V with VDD = 5 V; REF IN(–) = GND; MCLK IN = 2.4576 MHz unless otherwise noted. All specifications TMIN to TMAX unless otherwise noted.) Parameter B Version 1 Units Conditions/Comments STATIC PERFORMANCE No Missing Codes 16 Bits min Guaranteed by Design. Filter Notch < 60 Hz Output Noise See Tables I and III Depends on Filter Cutoffs and Selected Gain Integral Nonlinearity 2 ±0.003 % of FSR max Filter Notch < 60 Hz. Typically ±0.0003% Unipolar Offset Error See Note 3 Unipolar Offset Drift4 0.5 µV/°C typ Bipolar Zero Error See Note 3 Bipolar Zero Drift 4 0.5 µV/°C typ For Gains 1, 2 and 4 0.1 µV/°C typ For Gains 8, 16, 32, 64 and 128 Positive Full-Scale Error 5 See Note 3 Full-Scale Drift 4, 6 0.5 µV/°C typ Gain Error7 See Note 3 Gain Drift 4, 8 0.5 ppm of FSR/ °C typ Bipolar Negative Full-Scale Error 2 ±0.003 % of FSR typ Typically ±0.001% Bipolar Negative Full-Scale Drift4 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) 2 VDD = 5 V Gain = 1 96 dB typ Gain = 2 105 dB typ Gain = 4 110 dB typ Gain = 8 v128 130 dB typ VDD = 3 V Gain = 1 105 dB typ Gain = 2 110 dB typ Gain = 4 120 dB typ Gain = 8 v128 130 dB typ Normal-Mode 50 Hz Rejection 2 98 dB typ For Filter Notches of 25 Hz, 50 Hz, ±0.02 × f NOTCH Normal-Mode 60 Hz Rejection 2 98 dB typ For Filter Notches of 20 Hz, 60 Hz, ±0.02 × f NOTCH Common-Mode 50 Hz Rejection 2 150 dB typ For Filter Notches of 25 Hz, 50 Hz, ±0.02 × f NOTCH Common-Mode 60 Hz Rejection 2 150 dB typ For Filter Notches of 20 Hz, 60 Hz, ±0.02 × f NOTCH Absolute/Common-Mode REF IN Voltage 2 GND to VDD V min to V max Absolute/Common-Mode AIN Voltage 2, 9 GND – 30 mV V min BUF Bit of Setup Register = 0 VDD + 30 mV V max Absolute/Common-Mode AIN Voltage 2, 9 GND + 50 mV V min BUF Bit of Setup Register = 1 VDD – 1.5 V V max AIN DC Input Current 2 1 nA max AIN Sampling Capacitance 2 10 pF max AIN Differential Voltage Range 10 0 to +VREF/GAIN 11 nom Unipolar Input Range (B/U Bit of Setup Register = 1) ±V REF/GAIN nom Bipolar Input Range (B/U Bit of Setup Register = 0) AIN Input Sampling Rate, fS GAIN × f CLKIN/64 For Gains of 1 to 4 fCLKIN/8 For Gains of 8 to 128 Reference Input Range REF IN(+) – REF IN(–) Voltage 1/1.75 V min/max VDD = 2.7 V to 3.3 V. VREF = 1.225 ± 1% for Specified Performance REF IN(+) – REF IN(–) Voltage 1/3.5 V min/max VDD = 4.75 V to 5.25 V. VREF = 2.5 ± 1% for Specified Performance REF IN Input Sampling Rate, fS fCLKIN/64 LOGIC INPUTS Input Current All Inputs Except MCLK IN ±1 µA max Typically ±20 nA MCLK ±10 µA max Typically ±2 µA All Inputs Except SCLK and MCLK IN VINL, Input Low Voltage 0.8 V max VDD = 5 V 0.4 V max VDD = 3 V VINH, Input High Voltage 2.0 V min VDD = 3 V and 5 V SCLK Only (Schmitt Triggered Input) VDD = 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 Only (Schmitt Triggered Input) VDD = 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 VDD = 5 V NOMINAL VINL, Input Low Voltage 0.8 V max VINH, Input High Voltage 3.5 V min MCLK IN Only VDD = 3 V NOMINAL VINL, Input Low Voltage 0.4 V max VINH, Input High Voltage 2.5 V min |
Аналогичный номер детали - AD7705BR |
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Аналогичное описание - AD7705BR |
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