AD588
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
A3 OUT FORCE 1
+V S 2
A3 OUT SENSE 3
16 –V S
15 A4 OUT FORCE
14 A4 OUT SENSE
A3 IN 4
AD588
13 A4 IN
TOP VIEW
GAIN ADJ 5 (Not to Scale) 12 BAL ADJ
V HIGH 6
NOISE 7
REDUCTION
11 V CT
10 GND SENSE –IN
V LOW 8
9
GND SENSE +IN
Figure 2. Pin Configuration
Table 4. Pin Function Descriptions
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Mnemonic
A3 OUT FORCE
+V S
A3 OUT SENSE
A3 IN
GAIN ADJ
V HIGH
NOISE REDUCTION
V LOW
GND SENSE POSITIVE IN
GND SENSE NEGATIVE IN
V CT
BAL ADJ
A4 IN
A4 OUT SENSE
A4 OUT FORCE
?V S
Description
Output from Buffering Amplifier 3 with Kelvin Force. Connect to Pin 3.
Positive Power Supply.
Output from Buffering Amplifier 3 with Kelvin Sense. Connect to Pin 1.
+ Input to Amplifier 3. Connect to V HIGH , Pin 6.
Reference Gain Adjustment for Calibration. See the Calibration section.
Unbuffered Reference High Output.
Noise Filtering Pin. Connect external 1 μ F capacitor to ground to reduce the output noise
(see the Noise Performance and Reduction section). Can be left open.
Unbuffered Reference Low Output.
+ Input to the Ground Sense Amplifier.
? Input to the Ground Sense Amplifier.
Center Tap Voltage used for Calibration. See the Calibration section.
Reference Centering Adjustment for Calibration. See the Calibration section.
+ Input to Amplifier 4. Connect to V LOW , Pin 8.
Output of Buffering Amplifier 4 with Kelvin Sense. Connect to Pin 15.
Output of Buffering Amplifier 4 with Kelvin Force. Connect to Pin 14.
Negative Power Supply.
Rev. L | Page 5 of 20
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