AD7779 datasheet(24/97 Pages) AD

24 / 97 page

AD7779

Data Sheet

Rev. 0 | Page 24 of 97

–40

105

125

TEMPERATURE (°C)

CH 0

CH 1

CH 2

CH 3

CH 4

CH 5

CH 6

CH 7

AVDD1x = 3.3V

–0.400

–0.035

–0.029

–0.023

–0.017

–0.011

–0.005

0.005

0.011

0.017

Figure 50. Gain Error vs Temperature, High Resolution Mode, AVDD1x = 3.3 V

0.01

0.02

0.03

0.04

0.05

0.06

0.07

0.08

0.09

PGA GAIN

TEMPERATURE = 25°C

HIGH RESOLUTION

LOW POWER

AVDD1x = 3.3V

Figure 51. Channel Gain Mismatch, High Resolution Mode, AVDD1x = 3.3 V

–0.004

–0.002

0.002

0.004

0.006

0.008

TEMPERATURE (°C)

VREF =2.5V

VIN =–0.5dBFS

GAIN = 1

AVDD1x = 3.3V

Figure 52. Total Unadjusted Error (TUE) (as % of Input) vs. Temperature,

High Resolution Mode, AVDD1x = 3.3 V

–0.400

–0.035

–0.029

–0.023

–0.017

–0.011

–0.005

0.005

0.011

0.017

–40

105

125

TEMPERATURE (°C)

CH 0

CH 1

CH 2

CH 3

CH 4

CH 5

CH 6

CH 7

AVDD1x = 3.3V

Figure 53. Gain Error vs. Temperature, Low Power Mode, AVDD1x = 3.3 V

–1.5

–1.0

–0.5

0.5

1.0

1.5

–40

–20

100

120

TEMPERATURE (°C)

UNIT 1

UNIT 2

UNIT 3

UNIT 4

UNIT 5

UNIT 6

UNIT 7

Figure 54. Internal Reference Voltage Drift

TEMPERATURE (°C)

–0.004

–0.002

0.002

0.004

0.006

0.008

0.010

VREF =2.5V

VIN =–0.5dBFS

GAIN = 1

AVDD1x = 3.3V

Figure 55. TUE (as % of Input) vs. Temperature, Low Power Mode,

AVDD1x = 3.3 V

AD7779 Datasheet(PDF) 24 Page - Analog Devices

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