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ADPD6000 bảng dữ liệu(PDF) 6 Page - Analog Devices

tên linh kiện ADPD6000
Giải thích chi tiết về linh kiện  Multimodal Sensor Front End
PDF  89 Pages
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nhà sản xuất  AD [Analog Devices]
Trang chủ  http://www.analog.com
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ADPD6000 bảng dữ liệu(HTML) 6 Page - Analog Devices

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Data Sheet
ADPD6000
SPECIFICATIONS
analog.com
Rev. 0 | 6 of 89
Table 2. Performance Specifications
Parameter
Test Condition/Comments
Min
Typ
Max
Unit
Output Date Rate
Aligned with filter design
250
4000
Hz
Enable Time
Data rate of 500 SPS
15
ms
Overload Recovery Time
10
ms
Power
1.7
mW
DC LEAD OFF (DCLO) DETECTION
Drive Circuit
Lead Off Current Range
Lead fail current is programmable over the specified range,
programmed current magnitude setting applies across all electrode
pins, current polarity is programmable on individual electrode basis
±16
nA
Lead Off Current Step Size
2
nA
Measure Circuit
RLD Lead Off Thresholds
High
AVDD3 −
0.4
AVDD3 −
0.1
V
Low
0.1
0.4
V
AC LEAD OFF (ACLO) THRESHOLD
Drive Circuit
Excitation Frequency
4
kHz
Current
10
70
nA
Measure Circuit
Threshold
0.04
2.33
nF
RIGHT LEG DRIVER (RLD)
Output Voltage
GND
AVDD3/2
AVDD3
V
Stable Load Capacitance
2.2
nF
BIA CHANNEL
For Z = 1 kΩ (0.1% tolerant resistor), excitation frequency = 50 kHz,
sine amplitude = 0.6 V p-p, TIA resistor (RTIA) = 2 kΩ, TIA capacitor
(CTIA) = 7 pF, isolation capacitor = 470 nF, current-limiting resistor
(RLIMIT) = 1 kΩ
SYSTEM PERFORMANCE
Total System Accuracy
Magnitude
0.26
%
Phase
1
Degrees
Body Impedance Magnitude Error
Contact resistor <1 kΩ
0.26
%
Contact resistor <10 kΩ
5
%
Body Impedance Magnitude
Repeatability
Room temperature, test 10 times, contact resistor <1 kΩ
0.1
%
Body Phase Angle Error
1
Degrees
TRANSMIT STAGE
Output Frequency Range
50
250
kHz
Output Frequency Resolution
0.48
Hz
Output Voltage Range
800
mV
Output Voltage Resolution
0.39
mV
RECEIVE STAGE
Input Leakage Current
Input Capacitance
Toward ground for current sensing
10
pF
Toward ground for voltage sensing
10
pF
ADC Saturation Level
Voltage
±0.8
V
Current (TIA = 2 kΩ)
±400
μA



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