AD7779_16 Datasheet, PDF (26/101 Pages) Analog Devices – 8-Channel, 24-Bit, Simultaneous Sampling ADC

Data Sheet
0.017
0.011
0.005
0
–0.005
AVDD1x = 3.3V
CH 0
CH 1
CH 2
CH 3
CH 4
CH 5
CH 6
CH 7
–0.011
–0.017
–0.023
–0.029
–0.035
–0.400
–40
25
105
125
TEMPERATURE (°C)
Figure 50. Gain Error vs. Temperature, High Resolution Mode, AVDD1x = 3.3 V
0.09
0.08
TEMPERATURE = 25°C
AVDD1x = 3.3V
0.07
0.06
0.05
0.04
HIGH RESOLUTION
LOW POWER
0.03
0.02
0.01
0
1
2
4
8
PGA GAIN
Figure 51. Channel Gain Mismatch, High Resolution Mode
0.008
0.006
0.004
0.002
0
–0.002
V_REF = 2.5V
V_IN = –0.5dBFS
GAIN = 1
AVDD1x = 3.3V
–0.004
TEMPERATURE (°C)
Figure 52. Total Unadjusted Error (TUE) (as % of Input) vs. Temperature,
High Resolution Mode
AD7779
0.017
0.011
0.005
0
–0.005
AVDD1x = 3.3V
CH 0
CH 1
CH 2
CH 3
CH 4
CH 5
CH 6
CH 7
–0.011
–0.017
–0.023
–0.029
–0.035
–0.400
–40
25
105
125
TEMPERATURE (°C)
Figure 53. Gain Error vs. Temperature, Low Power Mode, AVDD1x = 3.3 V
25
105
125
TEMPERATURE (°C)
Figure 54. Internal Reference Voltage Drift
0.010
0.008
0.006
V_REF = 2.5V
V_IN = –0.5dBFS
GAIN = 1
AVDD1x = 3.3V
0.004
0.002
0
–0.002
–0.004
TEMPERATURE (°C)
Figure 55. TUE (as % of Input) vs. Temperature, Low Power Mode
Rev. A | Page 25 of 100