AD7771BCPZ datasheet(26/99 Pages) AD

26 / 99 page

Data Sheet

AD7771

Rev. 0 | Page 25 of 98

104

PGA GAIN

TA = 25°C

ODR = 64kSPS

100

102

Figure 56. Dynamic Range vs. PGA Gain at 64 kSPS,

High Resolution Mode

–40

TA = 25°C

VREF = 2.5V

VIN = 0V

SUPPLY = AVDD1x = 3.3V

–35

–30

–25

–20

–15

–10

–5

PGA GAIN

CH 0

CH 1

CH 2

CH 3

CH 4

CH 5

CH 6

CH 7

Figure 57. Offset Error vs. PGA Gain at 64 kSPS,

High Resolution Mode

–25

–20

–15

–10

–5

3.0

3.3

3.6

AVDD1x SUPPLY

GAIN = 1

GAIN = 2

GAIN = 4

GAIN = 8

TA = 25°C

VREF = 2.5V

VIN = 0V

Figure 58. Offset Error vs. AVDD1x Supply,

High Resolution Mode

105

TA = 25°C

ODR = 16kSPS

100

PGA GAIN

Figure 59. Dynamic Range vs. PGA Gain at 16 kSPS,

Low Power Mode

–35

–30

–25

–15

–5

–20

TA = 25°C

VREF = 2.5V

VIN = 0V

SUPPLY = AVDD1x = 3.3V

CH 0

CH 1

CH 2

CH 3

CH 4

CH 5

CH 6

CH 7

PGA GAIN

Figure 60. Offset Error vs. PGA Gain at 16 kSPS,

Low Power Mode

3.0

3.3

3.6

AVDD1x SUPPLY

GAIN = 1

GAIN = 2

GAIN = 4

GAIN = 8

TA = 25°C

VREF = 2.5V

VIN = 0V

–25

–20

–15

–10

–5

Figure 61. Offset Error vs. AVDD1x Supply,

Low Power Mode

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