EVAL-ADAS1000SDZ View Datasheet(PDF) - Analog Devices
Part Name
Description
MFG CO.
'EVAL-ADAS1000SDZ' PDF : 80 Pages View PDF
ADAS1000-3/ADAS1000-4
Parameter
Min
Gain Error
−1
−2
Gain Matching
−0.1
−0.5
Gain Tempco1
Input Referred Noise1
Analog Lead Mode
Electrode Mode
Digital Lead Mode
Power Supply Sensitivity2
Analog Channel Bandwidth1
Dynamic Range1
Signal-to-Noise Ratio1
COMMON-MODE INPUT
Input Voltage Range
Input Impedance2
Input Bias Current
COMMON-MODE OUTPUT
VCM_REF
Output Voltage, VCM
Output Impedance1
Short-Circuit Current1
Electrode Summation
Weighting Error2
RESPIRATION FUNCTION
(ADAS1000-4 ONLY)
Input Voltage Range
Input Voltage Range (Linear
Operation)
Input Bias Current
Input Referred Noise1
Frequency2
Excitation Current
0.3
−40
−200
1.28
0.3
0.3
−10
Typ
+0.01
+0.1
+0.02
+0.1
25
6
10
12
11
12
14
16
100
65
104
100
1||10
±1
1.3
1.3
0.75
4
1
Max
+1
+2
+0.1
+0.5
2.3
+40
+200
1.32
2.3
2.3
1.8/gain
±1
+10
0.85
46.5 to 64
Resolution2
Measurement Resolution1
In-Amp Gain1
Gain Error
Gain Tempco1
64
32
16
8
24
0.2
0.02
1 to 10
1
25
Data Sheet
Unit
%
%
%
%
ppm/°C
μV p-p
μV p-p
μV p-p
μV p-p
μV p-p
μV p-p
μV p-p
dB
kHz
dB
dB
V
GΩ||pF
nA
nA
V
V
kΩ
mA
%
V
V p-p
nA
μV rms
kHz
μA p-p
μA p-p
μA p-p
μA p-p
Bits
Ω
Ω
%
ppm/C
Test Conditions/Comments
GAIN 0 to GAIN 2, factory calibrated; programmable
user or factory calibration option enables; factory gain
calibration applies only to standard ECG interface
GAIN 3 setting, no factory calibration for this gain
GAIN 0 to GAIN 2
GAIN 3
GAIN 2, 2 kHz data rate, see Table 4
0.5 Hz to 40 Hz; high performance mode
0.05 Hz to 150 Hz; high performance mode
0.05 Hz to 150 Hz; low power mode
0.05 Hz to 150 Hz; high performance mode
0.05 Hz to 150 Hz; low power mode
0.05 Hz to 150 Hz; high performance mode
0.05 Hz to 150 Hz; low power mode
At 120 Hz
GAIN 0, 2 kHz data rate, −0.5 dBFS input signal, 10 Hz
−0.5 dB FS input signal
CM_IN pin
Over operating range; dc and ac lead-off disabled
AGND to AVDD
CM_OUT pin
Internal voltage; independent of supply
No dc load
Not intended to drive current
Resistor matching error
These specifications apply to the following pins:
EXT_RESP_LA, EXT_RESP_LL, EXT_RESP_RA and selected
internal respiration paths (Lead I, Lead II, Lead III)
AC-coupled, independent of supply
Programmable gain (10 states)
Applies to EXT_RESP_xx pins over AGND to AVDD
Programmable frequency, see Table 30
Respiration drive current corresponding to differential
voltage programmed by the RESPAMP bits in the
RESPCTL register; internal respiration mode, cable
5 kΩ/200 pF, 1.2 kΩ chest impedance
Drive Range A
Drive Range B2
Drive Range C2
Drive Range D2
Update rate 125 Hz
Cable <5 kΩ/200 pF per electrode, body resistance
modeled as 1.2 kΩ
No cable impedance, body resistance modeled as 1.2 kΩ
Digitally programmable in steps of 1
LSB weight for GAIN 0 setting
Rev. B | Page 6 of 80
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