ADAS1000(RevA) 查看數據表（PDF） - Analog Devices
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ADAS1000 Datasheet PDF : 80 Pages
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ADAS1000/ADAS1000-1/ADAS1000-2
Data Sheet
Parameter
Min
RIGHT LEG DRIVE/DRIVEN LEAD
(ADAS1000/ADAS1000-1 ONLY)
Output Voltage Range
0.2
RLD_OUT Short Circuit Current −5
Closed-Loop Gain Range2
25
Slew Rate2
Input Referred Noise1
Amplifier GBP2
DC LEAD-OFF
Lead-Off Current Accuracy
High Threshold Level1
Low Threshold Level1
Threshold Accuracy
AC LEAD-OFF
Frequency Range
Lead-Off Current Accuracy
REFIN
Input Range2
1.76
Input Current
450
REFOUT
Output Voltage, VREF
Reference Tempco1
Output Impedance2
Short Circuit Current1
Voltage Noise1
CALIBRATION DAC
DAC Resolution
Full-Scale Output Voltage
Zero-Scale Output Voltage
DNL
Output Series Resistance2
Input Current
CALIBRATION DAC TEST TONE
Output Voltage
Square Wave
Low Frequency Sine Wave
High Frequency Sine Wave
SHIELD DRIVER (ADAS1000/
ADAS1000-1 ONLY)
Output Voltage Range
Gain
Offset Voltage
Short Circuit Current
Stable Capacitive Load2
CRYSTAL OSCILLATOR
Frequency2
Start-Up Time2
1.785
2.64
0.24
−1
0.9
0.3
−20
Typ
±2
200
8
1.5
±10
2.4
0.2
25
2.031
±10
1.8
113
675
1.8
±10
0.1
4.5
33
17
10
2.7
0.3
10
±5
1
1
10
150
1
15
8.192
15
Max
Unit
Test Conditions/Comments
AVDD − 0.2 V
+5
mA
V/V
mV/ms
μV p-p
MHz
%
V
V
mV
kHz
%
1.84
V
μA
950
μA
1.815
2.76
0.36
+1
1.1
V
ppm/°C
Ω
mA
μV p-p
μV p-p
Bits
V
V
LSB
kΩ
nA
mV p-p
Hz
Hz
Hz
External protection resistor required to meet
regulatory patient current limits; output shorted to
AVDD/AGND
0.05 Hz to 150 Hz
Internal current source, pulls up open ECG pins;
programmable in 10 nA steps: 10 nA to 70 nA
Of programmed value
Inputs are compared to threshold levels; if inputs
exceed levels, lead-off flag is raised
Programmable in 4 steps: 12.5 nA rms, 25 nA rms,
50 nA rms, 100 nA rms
Fixed frequency
Of programmed value, measured into low impedance
Channel gain scales directly with REFIN
Per active ADC
5 ECG channels and respiration enabled
On-chip reference voltage for ADC; not intended to
drive other components reference inputs directly,
must be buffered externally
Short circuit to ground
0.05 Hz to 150 Hz (ECG band)
0.05 Hz to 5 Hz (respiration)
Available on CAL_DAC_IO (output for master, input for
slave)
No load, nominal FS output is 1.5 × REFOUT
No load
Not intended to drive low impedance load, used for
slave CAL_DAC_IO configured as an input
When used as input
Rides on common-mode voltage, VCM_REF = 1.3 V
2.3
V
Rides on common-mode voltage, VCM
V/V
+20
mV
25
μA
Output current limited by internal series resistance
10
nF
Applied to XTAL1 and XTAL2
MHz
ms
Internal startup
Rev. A | Page 6 of 80
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