Data Sheet
AD588
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
1
2
3
4
5
6
7
8
16
–V
A3 OUT FORCE
+V
S
15 A4 OUT FORCE
S
14
13
12
11
10
9
A3 OUT SENSE
A3 IN
A4 OUT SENSE
A4 IN
AD588
TOP VIEW
(Not to Scale)
GAIN ADJ
BAL ADJ
V
V
CT
HIGH
NOISE
REDUCTION
GND SENSE –IN
GND SENSE +IN
V
LOW
Figure 2. Pin Configuration
Table 4. Pin Function Descriptions
Pin No.
Mnemonic
A3 OUT FORCE
+VS
A3 OUT SENSE
A3 IN
GAIN ADJ
VHIGH
NOISE REDUCTION
Description
1
2
3
±
5
6
7
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.
Positive Input to Amplifier 3. Connect to VHIGH, Pin 6.
Reference Gain Adjustment for Calibration. See the Calibration section.
Unbuffered Reference High Output.
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
GND SENSE −IN
VCT
BAL ADJ
A± IN
A± OUT SENSE
A± OUT FORCE
−VS
Positive Input to the Ground Sense Amplifier.
Negative Input to the Ground Sense Amplifier.
10
11
12
13
1±
15
16
Center Tap Voltage used for Calibration. See the Calibration section.
Reference Centering Adjustment for Calibration. See the Calibration section.
Positive Input to Amplifier ±. Connect to VLOW, Pin 8.
Output of Buffering Amplifier ± with Kelvin Sense. Connect to Pin 15.
Output of Buffering Amplifier ± with Kelvin Force. Connect to Pin 1±.
Negative Power Supply.
Rev. M | Page 5 of 20
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