LM LM – Transistor Array, Package: Soic Narrow, Pin Nb= The LM consists of five general purpose silicon NPN transistors on a common. The LM consists of five general purpose silicon NPN transistors on a common monolithic substrate. Two of the transistors are internally connected to form a. Part Number: LM, Maunfacturer: National Semiconductor, Part Family: LM, File type: PDF, Document: Datasheet – semiconductor.

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Set up the circuit in Figure 1 using Q1 and Q2 for the emitter-coupled pair. Include the effect of a non-infinite Early voltage to improve your analysis and simulation accuracy.

LM3046 Datasheet PDF

Keep track datasyeet the divider ratio you finally use to scale your measurement correctly. Measure the all Q-point voltages and currents using the DMM. Also observe that because the oscilloscope does not have a floating input i. You will not need an input voltage divider because the Acm is low, Figure 3, because the common-mode voltage gain is sufficiently low that you will have to increase the input level significantly above what you used in the differential-mode measurement.


Use the oscilloscope to also check for excessive noise which may translate as a noisy dc voltage measurement. Just a different manufacturer.

LM Datasheet(PDF) – National Semiconductor (TI)

The transfer characteristics of a circuit can be displayed using the X-Y oscilloscope inputs. The data sheet is posted on the class WEB page. Pay particular attention to V OD. Set up your input signals, again use 1 kHz.

The CA is the same electrically as the LM The amplitude of the input must be large enough to drive the input through the entire desired range of operation. Above and beyond CS1, the following provides an important understanding of computer technology hardware.

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The signal generators have a mV minimum. Prepare a circuit diagram illustrating how you are measuring the common-mode voltage gain.

In addition to using the DMM, look for excessive noise datsaheet the scope even though you are measuring the dc voltage matching. We will jointly review your notebook during the 12 December laboratory period with the expectation that this experiment will be included.


Transistor Array

Use a low frequency sinusoid or triangular wave as the input. From a practical viewpoint, if the input signals are noisy because of low amplitudes, you may choose to use an input voltage divider to provide “cleaner” waveforms. You will need datadheet level of voltage division as shown in the figure.

That is do not use the Ground both the inputs of Q1 and Q2. Lead dress and length is also important. Consider implementing the Set up your input signals, use 1 kHz, so that the output is reasonably linear. Use Figure 1 and class notes for guidance to dagasheet a detailed circuit diagram.

The figure illustrates a Q3 and Q4 form a simple current source. By using a Use the oscilloscope and DMM to measure the differential-mode voltage gain.

A written report is not required.