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AD7771BCPZ датащи(PDF) 18 Page - Analog Devices |
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AD7771BCPZ датащи(HTML) 18 Page - Analog Devices |
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18 / 99 page ![]() Data Sheet AD7771 Rev. 0 | Page 17 of 98 TYPICAL PERFORMANCE CHARACTERISTICS 10 –10 –8 –6 –4 –2 0 2 4 6 8 INPUT VOLTAGE (V) TA = 25°C GAIN = 1 DIFFERENTIAL INPUT SIGNAL VREF = 2.5V VCM = (AVDD1x + AVSSx) ÷ 2 CH 0 CH 1 CH 2 CH 3 CH 4 CH 5 CH 6 CH 7 Figure 8. INL vs. Input Voltage and Channel at 64 kSPS, High Resolution Mode 10 8 6 4 2 0 –2 –4 –6 –8 –10 INPUT VOLTAGE (V) GAIN = 1 GAIN = 2 GAIN = 4 GAIN = 8 TA = 25°C DIFFERENTIAL VIN × GAIN VREF = 2.5V VCM = (AVDD1x + AVSSx) ÷ 2 Figure 9. INL vs. Input Voltage and PGA Gain at 64 kSPS, High Resolution Mode –3 –2 –1 0 1 2 3 10 8 6 4 2 0 –2 –4 –6 –8 –10 INPUT VOLTAGE (V) GAIN = 1 DIFFERENTIAL INPUT SIGNAL VREF = 2.5V VCM = (AVDD1x + AVSSx) ÷ 2 TA = –40°C TA = +25°C TA = +105°C TA = +125°C Figure 10. INL vs. Input Voltage and Temperature at 64 kSPS, High Resolution Mode 15 10 5 0 –5 –10 –15 INPUT VOLTAGE (V) CH 0 CH 1 CH 2 CH 3 CH 4 CH 5 CH 6 CH 7 TA = 25°C GAIN = 1 DIFFERENTIAL INPUT SIGNAL VREF = 2.5V VCM = (AVDD1x + AVSSx) ÷ 2 Figure 11. INL vs. Input Voltage and Channel at 16 kSPS, Low Power Mode 10 –10 –8 –6 –4 –2 0 2 4 6 8 INPUT VOLTAGE (V) GAIN = 1 GAIN = 2 GAIN = 4 GAIN = 8 TA = 25°C DIFFERENTIAL VIN × GAIN VREF = 2.5V VCM = (AVDD1x + AVSSx) ÷ 2 Figure 12. INL vs. Input Voltage and PGA Gain at 16 kSPS, Low Power Mode 10 5 –5 0 –10 –15 –3 –2 –1 0 1 2 3 INPUT VOLTAGE (V) TA = –40°C TA = +25°C TA = +105°C TA = +125°C GAIN = 1 DIFFERENTIAL INPUT SIGNAL VREF = 2.5V VCM = (AVDD1x + AVSSx) ÷ 2 Figure 13. INL vs. Input Voltage and Temperature at 16 kSPS, Low Power Mode |
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