Datasheet

200
0
-20
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-120
0 400 600
Frequency(Hz)
Magnitude(dB)
800 1000 1200 1400 1600 1800 2000
1
0
-20
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-120
0 2 3
Frequency(kHz)
Magnitude(dB)
4 5 6 7 8 9 10
500
0
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0 1000 1500
Frequency(Hz)
Magnitude(dB)
2000 2500 3000 3500 4000 4500 5000
2
0
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-120
0 4 6
Frequency(kHz)
Magnitude(dB)
8 10 12 14 16 18 20
500
0
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0 1000 1500
Frequency(Hz)
Magnitude(dB)
2000 2500 3000 3500 4000 4500 5000
ADS1146
ADS1147
ADS1148
SBAS453F –JULY 2009–REVISED APRIL 2012 www.ti.com
Figure 28. Filter Profile with Data Rate = 160SPS Figure 31. Filter Profile with Data Rate = 1kSPS
Figure 29. Filter Profile with Data Rate = 320SPS Figure 32. Filter Profile with Data Rate = 2kSPS
CLOCK SOURCE
The ADS1146/7/8 can use either the internal
oscillator or an external clock. Connect the CLK pin to
DGND before power-on or reset to activate the
internal oscillator. Connecting an external clock to the
CLK pin at any time deactivates the internal oscillator,
with the device then operating on the external clock.
After the device switches to the external clock, it
cannot be switched back to the internal oscillator
without cycling the power supplies or resetting the
device.
Figure 30. Filter Profile with Data Rate = 640SPS
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Product Folder Link(s): ADS1146 ADS1147 ADS1148