Datasheet AD8421-EP (Analog Devices) - 10

AD8421-EP Enhanced Product 40 160 VS = 5V GAIN = 1000 G = 100 30 140 GAIN = 100 20 120 GAIN = 10 A) ) m B ( 10 d ( 100 GAIN = 1 NT R 0 80 CURRE IVE PSR T UT –10 60 SI INP PO –20 40 –30 20 –40 0 –35 –30 –25 –20 –15 –10 –5 0 5 10 15 20 25 30 35 40
15 18 0
0.1 1 10 100 1k 10k 100k 1M
0 39- 39-
INPUT VOLTAGE (V)
1 1 1
FREQUENCY (Hz)
1 1 1 Figure 16. Input Overvoltage Performance; +VS = 5 V, −VS = 0 V, G = 100 Figure 19. Positive PSRR vs. Frequency
30 160 VS = ±15V GAIN = 1000 G = 100 140 GAIN = 100 20 GAIN = 10 120 A) B) m 10 d GAIN = 1 ( 100 NT RR ( S 0 P 80 E CURRE IV UT AT 60 –10 G INP NE 40 –20 20 –30 0 –25 –20 –15 –10 –5 0 5 10 15 20 25
16 19 0
0.1 1 10 100 1k 10k 100k 1M
0 39- 39-
INPUT VOLTAGE (V)
1 1 1
FREQUENCY (Hz)
1 1 1 Figure 17. Input Overvoltage Performance; VS = ±15 V, G = 100 Figure 20. Negative PSRR vs. Frequency
2.5 70 GAIN = 1000 2.0 60 1.5 50 GAIN = 100 1.0 40 A) n ( 0.5 ) 30 NT GAIN = 10 0 (dB 20 IN CURRE –0.5 GA 10 AS GAIN = 1 BI –1.0 0 –1.5 –10 –2.0 –20 –2.5 –30
20
–12 –10 –8 –6 –4 –2 0 2 4 6 8 10 12 14
17 0
100 1k 10k 100k 1M 10M
0 39- 39-
COMMON-MODE VOLTAGE (V)
1 1 1
FREQUENCY (Hz)
1 1 1 Figure 18. Input Bias Current vs. Common-Mode Voltage Figure 21. Gain vs. Frequency Rev. 0 | Page 10 of 20 Document Outline Features Enhanced Product Features Pin Connection Diagram General Description Revision History Specifications Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Outline Dimensions Ordering Guide