Difference Amplifier Design Specifications 

• V_cc = + 15 V dc
• V_ee = - 15 V dc
• V_in = 3 mV _p-p @ 1 kHz
• |A_v| = 50
• Load = 50 kW
• Z_in greater than 50 kW

 Objectives I

1.  Show all design calculations.
2. Build and test the circuit and prove that you met all the specified parameters.

 Design Circuit of Difference Amplifier

Figure 5

 Widlar Current Source Design Specifications

• V_cc =15 V dc
• I_o = 1 mA
• R_TH greater than 100 kW

 Objectives II

1. Show all design calculations
2. Build and test the circuit and prove that you met all the specified parameters

Design Circuit of Widlar Current Source

Figure 6

Wilson Current Source Specifications

• V_cc = 15 V dc
• I_o = 1 mA
• R_TH greater than 1 MW

 Objectives III

1. Show all design calculations.
2. Build and test the circuit and prove that you met all the specified parameters.

Design Circuit of Wilson Current Source  

Figure 7 

• V_cc = +15 V dc
• V_ee = -15 V dc
• V_in = 1 V_p-p with 2V dc offset
• V_out = ~ 1 V_p-p with no dc offset

Objectives IV

1. Show all design calculations
2. Build and test the circuit and prove that you met all the specified parameters

Design Circuit for Level Shifter

Figure 8

• V_cc = +15 V dc
• V_ee = -15 V dc
• V_in = 0.1 V - 10 V _p-p
• V_o1 ~ | V_in| inverted
• V_o2 ~| V_in| non-inverted
• |V₀₁|=|V₀₂|

Objectives V

1. Show all design calculations
2. Build and test the circuit and prove that you met all the specified parameters

Design Circuit of Phase Splitter

Figure 9

Last Modified: 4/16/98 by korman@seas.gwu.edu.