AD7770 datasheet(28/98 Pages) AD

28 / 98 page

Data Sheet

AD7770

Rev. C | Page 27 of 97

105

125

TEMPERATURE (°C)

VREF = 2.5V

VIN = 2.5V

AVDD1x = 3.3V

CH 0

CH 1

CH 2

CH 3

CH 4

CH 5

CH 6

CH 7

Figure 62. Differential Input Current vs. Temperature, High Resolution Mode

–140

–120

–100

–80

–60

–40

–20

INPUT FREQUENCY (Hz)

GAIN = 1

GAIN = 2

GAIN = 4

GAIN = 8

AVDD1x = 3.3V

VCM = 1.65V + 100mV p-p

Figure 63. Common-Mode Rejection Ratio (CMRR) vs. Input Frequency at

16 kSPS, High Resolution Mode

–160

–150

–140

–130

–120

–110

–100

–90

–80

–70

–60

–50

–40

–30

–20

–10

INPUT FREQUENCY (Hz)

GAIN = 1

GAIN = 2

GAIN = 4

GAIN = 8

AVDD1x = 3.3V + 100mV p-p

TEMPERATURE = 25°C

Figure 64. AC Power Supply Rejection Ratio (PSRR) vs. Input Frequency at

16 kSPS, High Resolution Mode

–40

105

125

TEMPERATURE (°C)

VREF = 2.5V

VIN = 2.5V

AVDD1x = 3.3V

CH 0

CH 1

CH 2

CH 3

CH 4

CH 5

CH 6

CH 7

Figure 65. Differential Input Current vs. Temperature, Low Power Mode

–140

–120

–100

–80

–60

–40

–20

INPUT FREQUENCY (Hz)

GAIN = 1

GAIN = 2

GAIN = 4

GAIN = 8

AVDD1x = 3.3V

VCM = 1.65V + 100mV p-p

Figure 66. CMRR vs. Input Frequency at 4 kSPS, Low Power Mode

–160

–150

–140

–130

–120

–110

–100

–90

–80

–70

–60

–50

–40

–30

–20

–10

INPUT FREQUENCY (Hz)

GAIN = 1

GAIN = 2

GAIN = 4

GAIN = 8

AVDD1x = 3.3V + 100mV p-p

TEMPERATURE = 25°C

Figure 67. AC PSRR vs. Input Frequency at 4 kSPS, Low Power Mode

AD7770 Datasheet(PDF) 28 Page - Analog Devices

AD7770 Datasheet(HTML) 28 Page - Analog Devices

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98

Datasheet Download

Link URL