Datasheet

ADAS1000/ADAS1000-1/ADAS1000-2 Data Sheet
Rev. A | Page 24 of 80
Figure 48. FFT with 60 Hz Input Signal
Figure 49. SNR and THD Across Gain Settings
Figure 50. Power Up AVDD Line to
DRDY
Going Low (Ready)
Figure 51. Open-Loop Gain Response of ADAS1000 Right Leg Drive Amplifier
Without Loading
Figure 52. Open-Loop Phase Response of ADAS1000 Right Leg Drive Amplifier
Without Loading
–180
–160
–140
–120
–100
–80
–60
–40
–20
0
0 50 100 150 200 250 300 350 400 450 500
AMPLITUDE (dBFS)
FREQUENCY (Hz)
AVDD = 3.3V
GAIN 0
DATA RATE = 2kHz
FILTER SETTING = 150Hz
09660-077
–100
–50
0
50
100
150
GAIN 0 GAIN 1 GAIN 2 GAIN 3
AMPLITUDE (dB)
GAIN SETTING
SNR
THD
AVDD = 3.3V
–0.5dBFS
10Hz INPUT SIGNAL
09660-078
CH1 2.00V M1.00ms A CH1 2.48V
T 22.1%
CH2 1.00V
2
1
09660-079
DRDY
AVDD = 3.3V
AVDD
120
LOOP GAIN (dB)
100
80
60
40
20
0
–20
–40
–60
–80
FREQUENCY (Hz)
100m 1 10 100 1k 1G10k 100k 1M 10M 100M
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0
LOOP GAIN (Phase)
–350
–300
–250
–200
–150
–100
–50
FREQUENCY (Hz)
100m 1 10 100 1k 1G10k 100k 1M 10M 100M
09660-081