Datasheet AD8232 (Analog Devices) - 8
| Manufacturer | Analog Devices |
| Description | Single-Lead, Heart Rate Monitor Front End |
| Pages / Page | 28 / 8 — AD8232. Data Sheet. 120. 110. 100. 10µV/DIV. RR ( S P. 200ms/DIV. 0.1. … |
| Revision | C |
| File Format / Size | PDF / 716 Kb |
| Document Language | English |
AD8232. Data Sheet. 120. 110. 100. 10µV/DIV. RR ( S P. 200ms/DIV. 0.1. 10k. 100k. FREQUENCY (Hz). 1.0. 0.9. 0.8. 0.7. √Hz. 0.6. R R. 0.5. ISE (. 0.4. 0.3. 0.2. 150. 200
Text Version of Document
AD8232 Data Sheet 120 110 100 90 80 B) 10µV/DIV d 70 RR ( S P 60 50 40 30
2 01
200ms/DIV 20
0866- 9 1 0
0.1 1 10 100 1k 10k 100k
-0 66
FREQUENCY (Hz)
108 Figure 9. Instrumentation Amplifier PSRR vs. Frequency Figure 12. Instrumentation Amplifier 0.5 Hz to 40 Hz Noise
10k 1.0 0.9 0.8 0.7 1k ) ) √Hz (% 0.6 R V/ O n R R 0.5 ISE ( E O IN 0.4 N 100 GA 0.3 0.2 0.1 1
0
0 0.1 1 10 100 1k 10k 100k
1 -0
0 50 100 150 200 250 300
-013 66
FREQUENCY (Hz)
108
DC OFFSET (mV)
10866 Figure 10. Instrumentation Amplifier Voltage Noise Spectral Density (RTI) Figure 13. Instrumentation Amplifier Gain Error vs. DC Offset
22pF 470pF 1nF 10µV/DIV
4 1 1 1
100µs/DIV 50mV/DIV
0 0
1s/DIV
0866- 10866- 1 Figure 11. Instrumentation Amplifier 0.1 Hz to 10 Hz Noise Figure 14. Instrumentation Amplifier Small Signal Pulse Response Rev. C | Page 8 of 28 Document Outline Features Applications Functional Block Diagram General Description Revision History Specifications Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Instrumentation Amplifier Performance Curves Operational Amplifier Performance Curves Right Leg Drive (RLD) Amplifier Performance Curves Reference Buffer Performance Curves System Performance Curves Theory of Operation Architecture Overview Instrumentation Amplifier Operational Amplifier Right Leg Drive Amplifier Reference Buffer Fast Restore Circuit Leads Off Detection DC Leads Off Detection AC Leads Off Detection Standby Operation Input Protection Radio Frequency Interference (RFI) Power Supply Regulation and Bypassing Input Referred Offsets Layout Recommendations Applications Information Eliminating Electrode Offsets High-Pass Filtering Two-Pole High-Pass Filter Additional High-Pass Filtering Options Low-Pass Filtering and Gain Driving Analog-to-Digital Converters Driven Electrode Application Circuits Heart Rate Measurement Next to the Heart Exercise Application: Heart Rate Measured at the Hands Cardiac Monitor Configuration Portable Cardiac Monitor with Elimination of Motion Artifacts Packaging and Ordering Information Outline Dimensions Ordering Guide
2 01
200ms/DIV 20
0866- 9 1 0
0.1 1 10 100 1k 10k 100k
-0 66
FREQUENCY (Hz)
108 Figure 9. Instrumentation Amplifier PSRR vs. Frequency Figure 12. Instrumentation Amplifier 0.5 Hz to 40 Hz Noise
10k 1.0 0.9 0.8 0.7 1k ) ) √Hz (% 0.6 R V/ O n R R 0.5 ISE ( E O IN 0.4 N 100 GA 0.3 0.2 0.1 1
0
0 0.1 1 10 100 1k 10k 100k
1 -0
0 50 100 150 200 250 300
-013 66
FREQUENCY (Hz)
108
DC OFFSET (mV)
10866 Figure 10. Instrumentation Amplifier Voltage Noise Spectral Density (RTI) Figure 13. Instrumentation Amplifier Gain Error vs. DC Offset
22pF 470pF 1nF 10µV/DIV
4 1 1 1
100µs/DIV 50mV/DIV
0 0
1s/DIV
0866- 10866- 1 Figure 11. Instrumentation Amplifier 0.1 Hz to 10 Hz Noise Figure 14. Instrumentation Amplifier Small Signal Pulse Response Rev. C | Page 8 of 28 Document Outline Features Applications Functional Block Diagram General Description Revision History Specifications Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Instrumentation Amplifier Performance Curves Operational Amplifier Performance Curves Right Leg Drive (RLD) Amplifier Performance Curves Reference Buffer Performance Curves System Performance Curves Theory of Operation Architecture Overview Instrumentation Amplifier Operational Amplifier Right Leg Drive Amplifier Reference Buffer Fast Restore Circuit Leads Off Detection DC Leads Off Detection AC Leads Off Detection Standby Operation Input Protection Radio Frequency Interference (RFI) Power Supply Regulation and Bypassing Input Referred Offsets Layout Recommendations Applications Information Eliminating Electrode Offsets High-Pass Filtering Two-Pole High-Pass Filter Additional High-Pass Filtering Options Low-Pass Filtering and Gain Driving Analog-to-Digital Converters Driven Electrode Application Circuits Heart Rate Measurement Next to the Heart Exercise Application: Heart Rate Measured at the Hands Cardiac Monitor Configuration Portable Cardiac Monitor with Elimination of Motion Artifacts Packaging and Ordering Information Outline Dimensions Ordering Guide
