PGA103 offset voltage correction circuit diagrams


Posted on Mar 28, 2007

As shown for the PGA103 offset voltage correction circuit. PGA103 laser correction, so the gain of the three kinds of typical offset voltage (relative to input) are lower than


PGA103 offset voltage correction circuit diagrams
Click here to download the full size of the above Circuit.

200 V, and the gain of each different offset voltage. FIG OPA602 operational amplifier connected as a voltage follower as a buffer, the use of low voltage follower output impedance characteristics, in order to make the correction circuit and the low resistance of PGA103 pin is connected in order to maintain the accuracy of the amplifier gain. 50k potentiometer allows adjusting the offset voltage is zero, then the output voltage Vo G (VIN-VTRIM). Because the logic inputs A0, A1 is referenced feet, so OPA602 output voltage VTRIM affect calibration logic threshold voltage, and therefore should be VTRIM 0.1V.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

FM Receiver circuit
170 Watt audio amplifier
Simple phase detector
Injector-tracer
transistors Mystery circuit: latching relay control with transitor / capacitor why doesnt it work
led strip Using a N-Mosfet to switch a common cathode ledstrip
build varying brightness ac lamp circuit
minimal arduino with atmega8
Levitron Design
A semi-practical capacitor-powered flashlight
Tilt Sensor via Accelerometer Circuit
Metal detector 8
220V AC powered LED lamp drive circuit diagram



Top