Datasheet AD8244 (Analog Devices) - 9

Data Sheet AD8244 10 120 REPRESENTATIVE SAMPLE 110 5 100 –PSRR V +PSRR S = ±5V V 90 VIN = 0V S = ±5V 0 VIN = 0V ) ) 80 B B d d ( ( –5 +PSRR, SINGLE SUPPLY IN R 70 +V A S = +5V, –VS = GND G V PSR VIN = +2.5V S = +3V 60 –10 VS = +5V VS = ±5V 50 VS = ±15V 40 –15 30 –20 20
0 3
1k 10k 100k 1M
01
0.1 1 10 100 1k 10k
0189-
FREQUENCY (Hz)
689- 1
FREQUENCY (Hz)
16 1 1 Figure 10. Gain vs. Frequency Figure 13. PSRR vs. Frequency
10 10 TYPICAL MISMATCH CL = 100pF BETWEEN ANY TWO CHANNELS 5 1 IN-AMP ) 0 % ( ) G B IN 1/2 d H ( –5 0.1 AD8244 IN TC A A G V M S = +3V IN –10 VS = +5V V GA S = ±5V VS = ±15V 0.01 –15 –20 0.001
1 4
1k 10k 100k 1M
1 0
10 100 1k 10k 100k
01 9-
FREQUENCY (Hz)
689-
FREQUENCY (Hz)
68 1 1 1 1 Figure 11. Gain vs. Frequency, C Figure 14. Gain Matching vs. Frequency L = 100 pF
1k 10 TYPICAL MISMATCH BETWEEN ANY TWO CHANNELS ) 100 1 IN-AMP (Ω ) % ( G ANCE IN D H 1/2 E P 10 0.1 TC AD8244 M A I M UT IN P GA UT O 1 0.01 0.1 0.001
5
10 100 1k 10k 100k 1M
2
10 100 1k 10k 100k
01 -01 9- 68
FREQUENCY (Hz) FREQUENCY (Hz)
689 1 1 1 1 Figure 12. Output Impedance vs. Frequency Figure 15. Gain Matching vs. Frequency, 1 kΩ Source Imbalance Rev. A | Page 9 of 20 Document Outline FEATURES APPLICATIONS PIN CONFIGURATION GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION OVERVIEW GUARDING INPUT PROTECTION LAYOUT CONSIDERATIONS DIFFERENTIAL SIGNAL CHAINS LOW OUTPUT IMPEDANCE vs. FREQUENCY APPLICATIONS INFORMATION ELECTROCARDIOGRAM (ECG) FILTERING Sallen-Key Low-Pass Filter Sallen-Key High-Pass Filter Twin-T Notch Filter PHOTODIODE AMPLIFIER LOW NOISE, JFET INPUT BUFFER OUTLINE DIMENSIONS ORDERING GUIDE