The red and black wires will be the + and - excitation, and should be connected to a stable voltage source. The green and white wires are the differential signal output that go to the op-amp + and - inputs respectively.
AD620 datasheet, AD620 datasheets, AD620 pdf, AD620 circuit : AD - Low Cost, Low Power Instrumentation Amplifier ,alldatasheet, datasheet, Datasheet search site for Electronic Components and Semiconductors, integrated circuits, diodes, triacs, and other semiconductors.
AD620 –4– REV. E NOTES 1Stresses above those listed under Absolute Maximum Ratings may cause perma- nent damage to the device. This is a stress rating only; functional operation of the AD620 Instrumentation Amplifiers Analog Devices Inc. AD620 Instrumentation Amplifiers are low cost, high accuracy amplifiers that require only one external resistor to set gains of 1 to 10,000. These amplifiers feature 8-lead SOIC and DIP packaging that is smaller than discrete designs. Sep 24, 2018 · Furthermore, the ad620 datasheet noise, datawheet input bias current, and low power of ad620 datasheet AD make it well suited for medical applications such as ECG and noninvasive blood pressure monitors. Dec 24, 2018 · The AD620, with its high accuracy of 40 ppm maximum nonlinearity, a low offset voltage of 50 µV max, and offset drift of 0.6 µV/°C max, is ideal for use in precision data acquisition systems, such as weigh scales and transducer interfaces.
Notice the small block diagram in Fig.2 if the AD620 datasheet. Here's a larger diagram from a datasheet of a similar InAmp with a 3-OpAmp topology . Notice that VREF is not a high impedance input. In order not to skew the differential output stage, VREF should be connected to a low impedance output. AD620 Instrumentation Amplifiers Analog Devices Inc. AD620 Instrumentation Amplifiers are low cost, high accuracy amplifiers that require only one external resistor to set gains of 1 to 10,000. These amplifiers feature 8-lead SOIC and DIP packaging that is smaller than discrete designs. AD620 Low Drift, Low Power Instrumentation Amp With Set Gains of 1 to 1000 FEATURES EASY TO USE Gain Set with One External Resistor (Gain Range to 1000) Wide Power Supply Range 18 V) Higher Performance than Three Op Amp IA Designs Available in 8-Lead DIP and SOIC Packaging Low Power, 1.3 mA max Supply Current EXCELLENT DC PERFORMANCE