ADS1242 AND ADS1243
FILTER RESPONSE WHEN fDATA = 15Hz
FREQUENCY RESPONSE FROM 45Hz to 65Hz
WHEN fDATA = 15Hz
0
–20
–40
–50
–60
–40
–70
–60
–80
–80
–90
–100
–120
–140
–160
–180
–100
–110
–120
–130
–140
0
20
40 60
80 100 120 140 160 180 200
Frequency (Hz)
45
50
55
60
65
Frequency (Hz)
FREQUENCY RESPONSE FROM 45Hz to 65Hz
WHEN fDATA = 7.5Hz
ADS1242 AND ADS1243
FILTER RESPONSE WHEN fDATA = 7.5Hz
–40
–50
0
–20
–60
–40
–70
–60
–80
–80
–90
–100
–120
–140
–160
–180
–100
–110
–120
–130
–140
0
20
40 60
80 100 120 140 160 180 200
Frequency (Hz)
45
50
55
60
65
Frequency (Hz)
ADS1242 AND ADS1243
FILTER RESPONSE WHEN fDATA = 3.75Hz
FREQUENCY RESPONSE FROM 45Hz to 65Hz
WHEN fDATA = 3.75Hz
0
–20
–40
–50
–60
–40
–70
–60
–80
–80
–90
–100
–120
–140
–160
–180
–100
–110
–120
–130
–140
0
20
40 60
80 100 120 140 160 180 200
Frequency (Hz)
45
50
55
60
65
Frequency (Hz)
f
OSC = 2.4576MHz, SPEED = 0 or fOSC = 4.9152MHz, SPEED = 1
ATTENUATION
DATA
–3dB
OUTPUT RATE
BANDWIDTH
fIN = 50 ± 0.3Hz
fIN = 60 ± 0.3Hz
fIN = 50 ± 1Hz
fIN = 60 ± 1Hz
15Hz
7.5Hz
3.75Hz
14.6Hz
3.44Hz
1.65Hz
–80.8dB
–85.9dB
–93.8dB
–87.3dB
–87.4dB
–88.6dB
–68.5dB
–71.5dB
–86.8dB
–76.1dB
–76.2dB
–77.3dB
FIGURE 6. Filter Frequency Responses.
ADS1242, 1243
13
SBAS235H
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TI [ TEXAS INSTRUMENTS ]
