Datasheet

AD588
Rev. L | Page 5 of 20
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
TOP VIEW
(Not to Scale)
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
A3 OUT FORCE
+V
S
A3 OUT SENSE
A3 IN
GAIN ADJ
V
HIGH
NOISE
REDUCTION
V
LOW
–V
S
A4 OUT FORCE
A4 OUT SENSE
A4 IN
BAL ADJ
V
CT
GND SENSE –IN
GND SENSE +IN
AD588
00531-002
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 +V
S
Positive Power Supply.
3 A3 OUT SENSE Output from Buffering Amplifier 3 with Kelvin Sense. Connect to Pin 1.
4 A3 IN + Input to Amplifier 3. Connect to V
HIGH
, Pin 6.
5 GAIN ADJ Reference Gain Adjustment for Calibration. See the Calibration section.
6 V
HIGH
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 V
LOW
Unbuffered Reference Low Output.
9 GND SENSE POSITIVE IN + Input to the Ground Sense Amplifier.
10 GND SENSE NEGATIVE IN − Input to the Ground Sense Amplifier.
11 V
CT
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 + Input to Amplifier 4. Connect to V
LOW
, 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 −V
S
Negative Power Supply.