1. Draw a two transistor current mirror. The input transistor is M1. The output transistor is M2.
  2. Assume both transistors are the same size, and in saturation. If the input current is Iin, what is Iout?
  3. If I want Iout to be half of Iin, what would you do?
  4. So we could change widths, lengths, add unit devices. Which is preferred? Why?
  5. How does M2 Vds affect Iout?
  6. Why does Iout change with Vds?
  7. How do we reduce the effect of Vds? Draw the circuit. Explain how to size devices.
  8. If M1 has a resistor at it's source, how does Iout change with respect to Iin?
  9. How do you reduce mismatch in a current mirror?
  10. How do you reduce noise in a current mirror?
  11. What is the bandwidth of a current mirror?
  12. If I want a 1-4 current ratio with unit devices, how do you layout that out? Why?