# Analysis for experiment 5.2 (show all work for calculations and explain the experimental

Analysis for experiment 5.2 (show all work for calculations and explain the experimental results versus calculated ones in each of the relevant sections): 3.1 Output short circuit current information for the LM 741 op-amp determines the maximum current the op-amp can source or sink at the output pin (typically 25mA). 6.5 Electrical Characteristics, LM741(1) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT TA = 25°C 15 mV Input offset voltage R\$ \$ 10k TAMIN STASTAMAX 6 mV Input offset voltage TA = 25*C, Vs = 220 V adjustment range TA = 25°C 20 200 Input offset current TAMIN STAS TAMAX 85 500 TA = 25°C 80 500 Input bias current TMINSTA STAMAX 1.5 Input resistance TA = 25*C, Vs = +20 V 0. 32 Input voltage range TAMINSTA STAMAX 212 213 50 Vs-115 V. Vo 110 V, R 22 TA 25°C Large signal voltage gain 200 TAMINSTA STAMAX 25 R 10 kO 12114 Output voltage swing Vs = 115 V R 2 2 0 210 213 Output short circuit current TA = 25°C 25 Common-mode rejection ratio Rs 5 100, VCM – 112 V. TAMIN STAS TAMAX 80 9 5 Supply voltage rejection ratio Vs = 20 V to Vs = 15 V, RS 510 ,TAMINSTA STAMAX 86 96 Transient Rise time 0.3 TA = 25°C, unity gain response Overshoot 5% Slew rate TA = 25*C, unity gain Supply current TA = 25°C 1.7 2.8 TA = 25°C 50 85 Power consumption Vs – 115 V TA=TAMIN 60 100 TA=TAMAX 1 45 75 0.5 Assuming we use the DAC with a buffer (as we did) to feed the speaker, what is the maximum current that will be delivered to the speaker? Assuming we use the DAC without the buffer to feed the speaker, what would be the maximum current delivered to the speaker? What will you need to change in the DAC design in order to deliver more current to the speaker and how will the digital IOs output current limit this design? Wiring for Part 2c: Add a speaker in series with the 24022 resistor you used in part 2a: ::::::::::::: :: ARDUINO Speaker supplied: – A8 22 with maximum power of 0.5W. We can limit it by either: → setting the maximum allowable voltage drop across the speaker to: V speaker max = ✓ Pspeaker · Rspeaker = 2V or ► setting the maximum allowable current flowing through the speaker to: ispeaker max = Pspeaker/Rspeaker = 0.25A – It works with sinusoidal signal with frequency in the range of 40Hz-20kHz. bito bit2 bits DAC Vout Road=24092 GND {GND