Datasheet AD704 (Analog Devices) - 7

AD704 50 1k 40 Hz) / 100 nV 30 ( %) E ( S OIS T N UNI 20 GE 10 OLTA V 10 0 1 –0.8 –0.4 0 0.4 0.8
013
1 10 100 1k
016
INPUT OFFSET VOLTAGE DRIFT (µV/°C) FREQUENCY (Hz)
00818- 00818- Figure 13. Typical Distribution of Input Offset Voltage Drift Figure 16. Input Noise Voltage Spectral Density
4 1k ) V µ ( 3 GE Hz) 100 fA/ OLTA ( E T V IS E 2 NO 100Ω 10kΩ OFFS NT IN 10 20MΩ GE 1 N CURRE A VOUT H C 0 1 0 1 2 3 4 5
014
1 10 100 1k
017
WARM-UP TIME (Minutes) FREQUENCY (Hz)
00818- 00818- Figure 14. Change in Input Offset Voltage vs. Warm-Up Time Figure 17. Input Noise Current Spectral Density
120 100 POSITIVE I A) B p ( 80 NT 0.5µV 60 CURRE AS BI 40 UT INP NEGATIVE IB 20 0
018
–15 –10 –5 0 5 10 15
015
0 5 10 COMMON-MODE VOLTAGE (V) TIME (Seconds)
00818- 00818- Figure 15. Input Bias Current vs. Common-Mode Voltage Figure 18. 0.1 Hz to 10 Hz Noise Voltage Rev. E | Page 7 of 16 Document Outline Features Applications General Description Connection Diagrams Revision History Specifications Absolute Maximum Ratings ESD Caution Typical Performance Characteristics Theory of Operation Outline Dimensions Ordering Guide