Datasheet AD688 (Analog Devices) - 10

AD688 100 0 100 90 ) z 80 –30 H 80 GAIN V/ n B) 70 d 60 –60 ITY ( S N 60 E egrees) D 40 –90 D L 50 A OOP GAIN ( PHASE L SE ( A TR 40 20 –120 PH OPEN- 30 OISE SPEC 20 0 –150 N 10 –20 –180
00815-018
0 10 100 1k 10k 100k 1M 10M 1 10 100 1k 10k FREQUENCY (Hz)
00815-015
FREQUENCY (Hz)
Figure 14. A3, A4 Open-Loop Frequency Response Figure 17. Input Noise Voltage Spectral Density
110 V
±
S = 15V VCM = 1V p-p 25
°
C 100 5V 50
µ
s 80 100 90 60 CMRR (dB) 40 20 10 0%
00815-016
010 100 1k 10k 100k 1M 10M FREQUENCY (Hz)
00815-019 Figure 15. A3, A4 CMR vs. Frequency Figure 18. Unity-Gain Follower Pulse Response (Large Signal)
110 VS =
±
15V WITH 1V p-p SINE WAVE 100 +SUPPLY 50mV 2
µ
s 80 CTION (dB) 100 E 90 J RE Y 60 L P –SUPPLY P U 40 R S WE O P 20 10 0% 10
00815-017
10 100 1k 10k 100k 1M 10M FREQUENCY (Hz)
00815-020 Figure 16. A3, A4 PSR vs. Frequency Figure 19. Unity-Gain Follower Pulse Response (Small Signal) Rev. B | Page 10 of 16 Document Outline FEATURES GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS THEORY OF OPERATION APPLICATIONS CALIBRATION NOISE PERFORMANCE AND REDUCTION TURN ON TIME TEMPERATURE PERFORMANCE KELVIN CONNECTIONS DYNAMIC PERFORMANCE BRIDGE DRIVER CIRCUIT OUTLINE DIMENSIONS ORDERING GUIDE