Datasheet AD8420 (Analog Devices) - 16

AD8420 Data Sheet 1k VS = ±5V ) Hz 1V/DIV fA/ 1.78µs TO 0.1% ( 100 3.31µs TO 0.01% E IS NO 0.02%/DIV
149
20µs/DIV 10
09945-
1 10 100 1k 10k 100k
48 3 45-
FREQUENCY (Hz)
099 Figure 45. Current Noise Spectral Density vs. Frequency Figure 48. Large Signal Pulse Response and Settling Time, G = 1
VS = ±5V 4.5V/DIV 67µs TO 0.1% 138µs TO 0.01% 0.02%/DIV
47 1 150
1.5pA/DIV 1s/DIV 200µs/DIV
945- 9 0 09945- Figure 46. 0.1 Hz to 10 Hz Current Noise Figure 49. Large Signal Pulse Response and Settling Time, G = 10
30 V V S = ±15V, G = 15V/V S = ±5V 27 24 ) p 21 p- V ( E 18 4.5V/DIV G A 600ms TO 0.1% LT 15 1.04ms TO 0.01% O V T 12 U 0.02%/DIV TP 9 OU 6 3 VS = +5V, G = 5V/V
151
20ms/DIV
09945-
0
8
1 10 100 1k 10k 100k 1M
14 5-
FREQUENCY (Hz)
0994 Figure 47. Large Signal Frequency Response Figure 50. Large Signal Pulse Response and Settling Time, G = 100 Rev. A | Page 16 of 26 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 ARCHITECTURE SETTING THE GAIN GAIN ACCURACY INPUT VOLTAGE RANGE INPUT PROTECTION Input Voltages Beyond the Rails Large Differential Input Voltage LAYOUT Common-Mode Rejection Ratio over Frequency Power Supplies Reference DRIVING THE REFERENCE PIN INPUT BIAS CURRENT RETURN PATH RADIO FREQUENCY INTERFERENCE (RFI) OUTPUT BUFFERING APPLICATIONS INFORMATION AD8420 IN ELECTROCARDIOGRAPHY (ECG) CLASSIC BRIDGE CIRCUIT 4 mA TO 20 mA SINGLE-SUPPLY RECEIVER OUTLINE DIMENSIONS ORDERING GUIDE