Question

4. The figure below shows a current source. Design a current source that generates an output current of 3mA for a reference current of 1mA. Use $V_{BE}$=0.6V. Neglect the effect of $?$ and $V_A$ (i.e., assume the base currents $I_{B1}$ and $I_{B2}$ to be zero so that $I_{REF} = I_{C1} =$ $I_{C1}$, and ignore the change in $I_O$ with change in $V_{CM}$).

          4. The figure below shows a current source. Design a current source that generates an
output current of 3mA for a reference current of 1mA. Use $V_{BE}$=0.6V. Neglect the
effect of $?$ and $V_A$ (i.e., assume the base currents $I_{B1}$ and $I_{B2}$ to be zero so that $I_{REF} = I_{C1} =$
$I_{C1}$, and ignore the change in $I_O$ with change in $V_{CM}$).

4. The figure below shows a current source. Design a current source that generates an
output current of 3mA for a reference current of 1mA. Use VBE=0.6V. Neglect the
effect of ? and VA (i.e., assume the base currents IB1 and IB2 to be zero so that IREF = IC1 =
IC1, and ignore the change in IO with change in VCM).

Added by Natalia B.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Kamlesh Goyal

Step 1

Given that the reference current (IREF) is 1mA, we want the output current (Io) to be 3mA. Since IREF = IC1 = IE1, we need IC1 = 3mA. Show more…

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The figure below shows a current source. Design a current source that generates an output current of 3mA for a reference current of 1mA. Use VBE1 = 0.6V. Neglect the effect of Î² and VA (i.e., assume the base currents IB1 and IB2 to be zero so that IREF = IC1 = IE1, and ignore the change in Io with change in VCE2).