AD7770 datasheet(21/98 Pages) AD

21 / 98 page

AD7770

Data Sheet

Rev. C | Page 20 of 97

–40

105

125

TEMPERATURE (°C)

VREF = 2.5V

VCM = (AVDD1x + AVSSx) ÷ 2

GAIN = 1

GAIN = 2

GAIN = 4

GAIN = 8

Figure 20. Noise vs. Temperature at 16 kSPS, High Resolution Mode

CLOCK FREQUENCY (Hz)

VREF = 2.5V

VCM = (AVDD1x + AVSSx) ÷ 2

TEMPERATURE = 25°C

DECIMATION = 256

GAIN = 1

GAIN = 2

GAIN = 4

GAIN = 8

Figure 21. Noise vs. Clock Frequency, High Resolution Mode

100

120

140

ODR (SPS)

2000

4000

8000

16000

32000

GAIN = 1

GAIN = 2

GAIN = 4

GAIN = 8

Figure 22. Noise vs. ODR, High Resolution Mode

–40

105

125

TEMPERATURE (°C)

VREF = 2.5V

VCM = (AVDD1x + AVSSx) ÷ 2

GAIN = 1

GAIN = 2

GAIN = 4

GAIN = 8

Figure 23. Noise vs. Temperature at 4 kSPS, Low Power Mode

CLOCK FREQUENCY (Hz)

VREF = 2.5V

VCM = (AVDD1x + AVSSx) ÷ 2

TEMPERATURE = 25°C

DECIMATION = 256

GAIN = 1

GAIN = 2

GAIN = 4

GAIN = 8

Figure 24. Noise vs. Clock Frequency, Low Power Mode

100

150

200

250

300

ODR (SPS)

500

1000

2000

4000

8000

GAIN = 1

GAIN = 2

GAIN = 4

GAIN = 8

Figure 25. Noise vs. ODR, Low Power Mode

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