## hejå 3 years ago H5P1 ZERO-OFFSET AMPLIFIER In many amplifiers, we use dual power supplies so we can obtain a 0V offset at the output, that is, the DC operating point at the output is 0V. An example amplifier circuit that can achieve this is shown below. In this circuit, VS+=1.0V, VS−=−1.0V, and the MOSFET parameters are K=1 mAV2 and VT=0.5V. what formulas do i need

1. kashyap

VS+=1.0V, VS−=−1.0V, and the MOSFET parameters are K=1 mAV2 and VT=0.5V. .. are these ur values ??

2. kashyap

minimum Vin=-0.5 RL = 8000 ohms !!

3. kashyap

im still fighting for the third one .. ;)

4. hejå

i cant find the right equation we need to workout the vin mofset remains haha

5. hejå

As VIN is increased, the output voltage VOUT decreases and the MOSFET goes out of saturation. For the value or RL found above, what is the maximum input voltage VIN in volts such that the MOSFET will remain in the saturation region?

6. hejå

8000 ohms

7. hejå

correct and thank you for showing your workings so i can see where iv been going wrong

8. summum

Ok, another one, what is the maximum input voltage Vin in the saturation region for R=8k? Please!

9. Coolamigo

.093

10. summum

Thank you sir!

11. fabiohugo08

how did you solve that Coolamigo?

12. Coolamigo

Hit Tran and solve as (3.148-1.187)/(1.1-.900049)