Datasheet

Data Sheet ADAS1000-3/ADAS1000-4
Rev. A | Page 41 of 76
Figure 68. ECG Channel Filter Signal Flow
Table 15. Relationship of ECG Waveform to Pace Indication
1, 2, 3
Data Rate Conditions Apparent Delay of ECG Data Relative to Pace Event
4
2 kHz 450 Hz ECG bandwidth 0.984 ms
250 Hz ECG bandwidth 1.915 ms
150 Hz ECG bandwidth 2.695 ms
40 Hz ECG bandwidth 7.641 ms
16 kHz 109 μs
128 kHz 0
1
ECG waveform delay is the time required to reach 50% of final value following a step input.
2
Guaranteed by design, not subject to production test.
3
There is an unavoidable residual uncertainty of 8 μs in determining the pace pulse trailing edge.
4
Add 38 μs to obtain the absolute delay for any setting.
2.048MHz
ADC DATA
14-BITS
2.048MHz
128kHz
–3dB AT 13kHz
ACLO
CARRIER
NOTCH
2kHz
AC LEAD-OFF
DETECTION
PACE
DETECTION
128kHz DATA RATE
16-BITS WIDE
AVAILABLE DATA RATE
CHOICE OF 1:
40Hz
150Hz
250Hz
(PROGRAMMABLE BESSEL )
~7Hz
16kHz DATA RATE
24-BITS WIDE
18 USABLE BITS
2kHz DATA RATE
24-BITS WIDE
19 USABLE BITS
128kHz
16kHz
–3dB AT 3.5kHz
2kHz
–3dB AT 450Hz
16kHz
CALIBRATION
31.25Hz DATA RATE
24-BITS WIDE
~22 USABLE BITS
10997-028