Datasheet

AD7879/AD7889
Rev. C | Page 11 of 40
1400
1200
1000
800
600
400
200
0
2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6
V
CC
(V)
TEMPERATURE (Code)
07667-019
Figure 19. Temperature Code vs. V
CC
for 25°C
0
–20
–40
–60
–80
–100
–120
–140
–160
0
1603 3206 4809 6412 8015 9618
11221 12824 14427 16030 17633 19236 20839 22442 24045 25648 27251 28854 30457 32060 33663 35266 36869
FREQUENCY (Hz)
INPUT TONE AMPLITUDE (dB)
07667-020
SNR = 61.58dB
THD = 72.34dB
Figure 20. Typical FFT Plot for the Auxiliary Channels at 25 kHz Sampling
Rate and 1 kHz Input Frequency
250
200
150
100
50
0
NUMBER OF UNITS
–4 –3 –2 –1 0
ERROR (%)
MEAN: –1.98893
SD: 0.475534
07667-021
Figure 21. Typical Uncalibrated Accuracy for the Battery Channel (25°C)