Datasheet AD8131 (Analog Devices) - 9

AD8131 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS –D 1 8 IN +DIN 750
Ω
750
Ω
V 2 7 OCM NC V+ 3 6 V– 1.5k
Ω
1.5k
Ω
+OUT 4 5 –OUT AD8131 NC = NO CONNECT
01072-003 Figure 4. Pin Configuration
Table 6. Pin Function Descriptions Pin No. Mnemonic Description
1 −DIN Negative Input. 2 VOCM Common-Mode Output Voltage. Voltage applied to this pin sets the common-mode output voltage with a ratio of 1:1. For example, 1 V dc on VOCM will set the dc bias level on +OUT and −OUT to 1 V. 3 V+ Positive Supply Voltage. 4 +OUT Positive Output. Note: the voltage at −DIN is inverted at +OUT. 5 −OUT Negative Output. Note: the voltage at +DIN is inverted at −OUT. 6 V− Negative Supply Voltage. 7 NC No Connect. 8 +DIN Positive Input. Rev. B | Page 8 of 20 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION SPECIFICATIONS ±DIN TO ±OUT SPECIFICATIONS VOCM TO ±OUT SPECIFICATIONS ±DIN TO ±OUT SPECIFICATIONS VOCM TO ±OUT SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS OPERATIONAL DESCRIPTION THEORY OF OPERATION ANALYZING AN APPLICATION CIRCUIT CLOSED-LOOP GAIN ESTIMATING THE OUTPUT NOISE VOLTAGE CALCULATING THE INPUT IMPEDANCE OF AN APPLICATION CIRCUIT INPUT COMMON-MODE VOLTAGE RANGE IN SINGLE-SUPPLY APPLICATIONS SETTING THE OUTPUT COMMON-MODE VOLTAGE DRIVING A CAPACITIVE LOAD APPLICATIONS TWISTED-PAIR LINE DRIVER 3 V SUPPLY DIFFERENTIAL A-TO-D DRIVER UNITY-GAIN, SINGLE-ENDED-TO-DIFFERENTIAL DRIVER OUTLINE DIMENSIONS ORDERING GUIDE