AD8232 Datasheet, PDF (14/28 Pages) Analog Devices – Single-Lead, Heart Rate Monitor Front End

AD8232
REFERENCE BUFFER PERFORMANCE CURVES
20
SOURCE
15
SINK
10
5
0
–5
–10
–15
–20
0.01
0.10
1
10
LOAD CURRENT (mA)
Figure 39. Reference Buffer Load Regulation
20mV/DIV
10µs/DIV
Figure 40. Reference Buffer
Load Transient Response (100 μA Load Change)
Data Sheet
10,000.0
1,000.0
100.0
10.0
1.0
0.1
0.1
1
10
100
1k
10k
100k
FREQUENCY (Hz)
Figure 41. Reference Buffer Output Impedance vs.
Frequency
1000
100
10
1
–40
–20
0
20
40
60
TEMPERATURE (°C)
80
100
Figure 42. Reference Buffer Bias Current vs. Temperature
Rev. A | Page 14 of 28