Datasheet AD588 (Analog Devices) - 5

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Data Sheet AD588 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS A3 OUT FORCE 1 16 –VS +V 2 15 S A4 OUT FORCE A3 OUT SENSE 3 14 A4 OUT SENSE A3 IN 4 AD588 13 A4 IN TOP VIEW GAIN ADJ 5 (Not to Scale) 12 BAL ADJ V 6 11 HIGH VCT NOISE 7 10 GND SENSE –IN REDUCTION
002
8 9 V GND SENSE +IN LOW
00531- Figure 2. Pin Configuration
Table 4. Pin Function Descriptions Pin No. Mnemonic Description
1 A3 OUT FORCE Output from Buffering Amplifier 3 with Kelvin Force. Connect to Pin 3. 2 +VS Positive Power Supply. 3 A3 OUT SENSE Output from Buffering Amplifier 3 with Kelvin Sense. Connect to Pin 1. 4 A3 IN Positive Input to Amplifier 3. 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 the output noise (see the Noise Performance and Reduction section). Can be left open. 8 VLOW Unbuffered Reference Low Output. 9 GND SENSE +IN Positive Input to the Ground Sense Amplifier. 10 GND SENSE −IN Negative Input to the Ground Sense Amplifier. 11 VCT Center Tap Voltage used for Calibration. See the Calibration section. 12 BAL ADJ Reference Centering Adjustment for Calibration. See the Calibration section. 13 A4 IN Positive Input to Amplifier 4. Connect to VLOW, Pin 8. 14 A4 OUT SENSE Output of Buffering Amplifier 4 with Kelvin Sense. Connect to Pin 15. 15 A4 OUT FORCE Output of Buffering Amplifier 4 with Kelvin Force. Connect to Pin 14. 16 −VS Negative Power Supply. Rev. M | Page 5 of 20 Document Outline FEATURES GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS THEORY OF OPERATION APPLICATIONS INFORMATION CALIBRATION NOISE PERFORMANCE AND REDUCTION TURN-ON TIME TEMPERATURE PERFORMANCE KELVIN CONNECTIONS DYNAMIC PERFORMANCE USING THE AD588 WITH CONVERTERS AD7535 14-BIT DIGITAL-TO-ANALOG CONVERTER AD569 16-BIT DIGITAL-TO-ANALOG CONVERTER SUBSTITUTING FOR INTERNAL REFERENCES AD574A 12-BIT ANALOG-TO-DIGITAL CONVERTER RESISTANCE TEMPERATURE DETECTOR (RTD) EXCITATION BOOSTED PRECISION CURRENT SOURCE BRIDGE DRIVER CIRCUITS OUTLINE DIMENSIONS ORDERING GUIDE