Datasheet

ADAS1000-3/ADAS1000-4 Data Sheet
Rev. A | Page 20 of 76
Figure 29. VCM_REF vs. Temperature
Figure 30. Typical AVDD Supply Current vs. Temperature, Using Internal
ADVCDD/DVDD Supplies
Figure 31. Typical AVDD Supply Current vs. Temperature, Using Externally
Supplied ADVCDD/DVDD
Figure 32. Typical AVDD Supply Current vs. Temperature in Standby Mode
Figure 33. Typical AVDD Supply Current vs. AVDD Supply Voltage
Figure 34. Respiration with 200 mΩ Impedance Variation, Using Internal
Respiration Paths and Measured with a 0 Ω Patient Cable
TEMPER
ATURE (°C)
1.2970
1.2975
1.2980
1.2985
1.2990
1.2995
1.3000
1.3005
1.3010
–40 –20 0
20
40 60 80
VOLTAGE (V)
AVDD = 3.3V
10997-057
TEMPERATURE (°C)
12.20
12.25
12.30
12.35
12.40
12.45
12.50
–40 –20
0
20 40 60 80
AVDD SUPPLY CURRENT (mA)
AVDD = 3.3V
3 ECG CHANNELS ENABLED
INTERNAL LDO UTILIZED
HIGH PERFORMANCE/LOW NOISE MODE
10997-060
TEMPERATURE (°C)
3.395
3.400
3.405
3.410
3.415
3.420
3.425
3.430
–40 –20 0 20 40 60 80
AVDD SUPPLY CURRENT (mA)
AVDD = 3.3V
3 ECG CHANNELS ENABLED
ADCVDD AND DVDD SUPPLIED EXTERNALLY
HIGH PERFORMANCE/LOW NOISE MODE
10997-058
765
770
775
780
785
790
795
800
805
–40 –20 0 20 40 60 80
AVDD SUPPLY CURRENT (µA)
TEMPERATURE (°C)
AVDD = 3.3V
10997-069
12.35
12.40
12.45
12.50
12.55
12.60
12.65
3.0 3.5 4.0 4.5 5.0 5.5 6.0
CURRENT (mA)
VOLTAGE (V)
LOW NOISE/HIGH
PERFORMANCE MODE
10997-059
0.142925
0 5 10 15 20 25 30
0.142930
0.142935
0.142940
0.142945
0.142950
0.142955
RESPIRATION MAGNITUDE (V)
TIME (Seconds)
AVDD = 3.3V
ECG PATH/DEFIB/CABLE IMPEDANCE = 0 Ω
PATIENT IMPEDANCE = 1kΩ
RESPIRATION RATE = 10RESPPM
RESPAMP = 11 = 60µA p-p
RESPGAIN = 0011 = 4
10997-062