Datasheet AD688 (Analog Devices) - 5

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AD688 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS +10V OUT FORCE 1 16 –VS +VS 2 15 –10V OUT FORCE +10V OUT SENSE 3 14 –10V OUT SENSE AD688 A3 IN 4 TOP VIEW 13 A4 IN GAIN ADJ (Not to Scale) 5 12 BAL ADJ VHIGH 6 11 NC NOISE REDUCTION 7 10 NC VLOW 8 9 GND SENSE +IN NC = NO CONNECT
00815-002 Figure 2. Pin Configuration
Table 3. Pin Function Descriptions Pin No. Mnemonic Description
1 +10 V OUT FORCE +10 V Output with Kelvin Force. Connect to Pin 3. 2 +VS Positive Power Supply. 3 +10 V OUT SENSE +10 V Output with Kelvin Sense. Connect to Pin 1. 4 A3 IN + Input to A3. Connect to VHIGH, Pin 6. 5 GAIN ADJ Reference Gain Adjustment for Calibration. See the Calibration section. 6 VHIGH Unbuffered Reference High Output. 7 NOISE REDUCTION Noise Filtering Pin. Connect external 1 µF capacitor to ground to reduce output noise, see the Noise Performance and Reduction section. May be left open. 8 VLOW Unbuffered Reference Low Output. 9 GND SENSE +IN Gound with Kelvin Sense. 10 NC No Connection. Leave floating. 11 NC No Connection. Leave floating. 12 BAL ADJ Reference Centering Adjustment for Calibration. See the Calibration section. 13 A4 IN + Input to A4. Connect to VLOW, Pin 8. 14 −10 V OUT SENSE −10 V Output with Kelvin Sense. Connect to Pin 15. 15 −10 V OUT FORCE −10 V Output with Kelvin Force. Connect to Pin 14. 16 −VS Negative Power Supply. Rev. B | Page 5 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