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AD7891AS-1 bảng dữ liệu(PDF) 2 Page - Analog Devices |
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AD7891AS-1 bảng dữ liệu(HTML) 2 Page - Analog Devices |
2 / 20 page –2– REV. A AD7891–SPECIFICATIONS (VDD = +5 V 5%, AGND = DGND = 0 V, REF IN = +2.5 V. All Specifications TMIN to TMAX unless otherwise noted.) ABY Parameter Version 1 Version Version Units Test Conditions/Comments DYNAMIC PERFORMANCE 2 Sample Rate = 454.5 kSPS 3 (AD7891-1), 500 kSPS 3 (AD7891-2). Any Channel Signal to (Noise + Distortion) Ratio 4 @ +25 °C 707070dB min TMIN to TMAX 70 70 70 dB min Total Harmonic Distortion 4 –78 –78 –78 dB max Peak Harmonic or Spurious Noise 4 –80 –80 –80 dB max Intermodulation Distortion 4 fa = 9 kHz, fb = 9.5 kHz 2nd Order Terms –80 –80 –80 dB typ 3rd Order Terms –80 –80 –80 dB typ Channel-to-Channel Isolation 4 –80 –80 –80 dB max DC ACCURACY Any Channel Resolution 12 12 12 Bits Minimum Resolution for Which No Missing Codes are Guaranteed 12 12 12 Bits Relative Accuracy4 ± 1 ± 0.75 ± 1 LSB max Differential Nonlinearity4 ± 1 ± 1 ± 1 LSB max Positive Full-Scale Error4 ± 3 ± 3 ± 3 LSB max Positive Full-Scale Error Match4, 5 0.6 0.6 0.6 LSB typ 1.5 LSB max Unipolar Offset Error ± 3 ± 3 ± 3 LSB max Input Ranges of 0 V to +2.5 V, 0 V to +5 V Unipolar Offset Error Match5 0.1 0.1 0.1 LSB typ 1 LSB max Negative Full-Scale Error4 ± 3 ± 3 ± 3 LSB max Input Ranges of ± 2.5 V, ± 5 V, ± 10 V Negative Full-Scale Error Match4, 5 0.6 0.6 0.6 LSB typ 1.5 LSB max Bipolar Zero Error ± 4 ± 4 ± 4 LSB max Input Ranges of ± 2.5 V, ± 5 V, ± 10 V Bipolar Zero Error Match5 0.2 0.2 0.2 LSB typ 1.5 LSB max ANALOG INPUTS AD7891-1 Input Voltage Range ± 5 ± 5 ± 5 Volts Input Applied to Both VINXA and VINXB ± 10 ± 10 ± 10 Volts Input Applied to VINXA, VINXB = AGND AD7891-1 VINXA Input Resistance 7.5 7.5 7.5 k Ω min Input Range of ±5 V AD7891-1 VINXA Input Resistance 15 15 15 k Ω min Input Range of ±10 V AD7891-2 Input Voltage Range 0 to +2.5 0 to +2.5 0 to +2.5 Volts Input Applied to Both VINXA and VINXB 0 to +5 0 to +5 0 to +5 Volts Input Applied to VINXA, VINXB = AGND ± 2.5 ± 2.5 ± 2.5 Volts Input Applied to VINXA, VINXB = REF IN 6 AD7891-2 VINXA Input Resistance 1.5 1.5 1.5 k Ω min Input Ranges of ± 2.5 V and 0 to +5 V AD7891-2 VINXA Input Current ± 50 ± 50 ± 50 nA max Input Range of 0 V to +2.5 V REFERENCE INPUT/OUTPUT REF IN Input Voltage Range 2.375/2.625 2.375/2.625 2.375/2.625 V min/V max 2.5 V ± 5% Input Impedance 1.6 1.6 1.6 k Ω min Resistor Connected to Internal Reference Node Input Capacitance 5 10 10 10 pF max REF OUT Output Voltage 2.5 2.5 2.5 V nom REF OUT Error @ +25 °C ± 10 ± 10 ± 10 mV max TMIN to TMAX ± 20 ± 20 ± 20 mV max REF OUT Temperature Coefficient 25 25 25 ppm/ °C typ REF OUT Output Impedance 5 5 5 k Ω nom See REF IN Input Impedance LOGIC INPUTS Input High Voltage, VINH 2.4 2.4 2.4 V min VDD = 5 V ± 5% Input Low Voltage, VINL 0.8 0.8 0.8 V max VDD = 5 V ± 5% Input Current, IINH ± 10 ± 10 ± 10 µA max Input Capacitance, 5 CIN 10 10 10 pF max |
Số phần tương tự - AD7891AS-1 |
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Mô tả tương tự - AD7891AS-1 |
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