How do IC chips affect circuit analysis?

AI Thread Summary
IC chips significantly influence circuit analysis by requiring consideration of parasitics, which can affect resistance, impedance, and current calculations. Key principles such as Kirchhoff's Voltage Law (KVL) and Kirchhoff's Current Law (KCL) remain essential for circuit analysis. Datasheets provide crucial information on output drive strengths, open-collector configurations, and maximum current and voltage specifications for IC pins. Inputs typically have high impedance unless specified otherwise, and understanding signal types is vital for effective circuit interaction. Overall, while IC datasheets simplify some analysis aspects, awareness of their characteristics is crucial for accurate circuit design.
Siike92
Messages
9
Reaction score
0
How do you analyze things like Resistance, Impedance, Current, and Resistance for a circuit that uses ICs? Are there factors I have to account for in the IC itself?
 
Engineering news on Phys.org
We use KVL and KCL to analyze circuits. In IC the other factor to account for is the parasitics.
 
Siike92 said:
How do you analyze things like Resistance, Impedance, Current, and Resistance for a circuit that uses ICs? Are there factors I have to account for in the IC itself?

Outputs have drive strengths and things like open-collector that are described in the datasheets. You need to know how much current your analog components will draw from the IC pins.

Inputs are generally high impedance unless they are sinking, in which the datasheet will tell you the maximum sink current. They also tell you the maximum voltage on the pins.

Other than knowing the current and voltage on the pins that the datasheet tells you, you generally don't have to do much else in circuit analysis with an IC. It is more important to know the types of signals that come in and out of them, since that is their interaction in a circuit.
 
Thread 'Weird near-field phenomenon I get in my EM simulation'

Thread 'Weird near-field phenomenon I get in my EM simulation'

I recently made a basic simulation of wire antennas and I am not sure if the near field in my simulation is modeled correctly. One of the things that worry me is the fact that sometimes I see in my simulation "movements" in the near field that seems to be faster than the speed of wave propagation I defined (the speed of light in the simulation). Specifically I see "nodes" of low amplitude in the E field that are quickly "emitted" from the antenna and then slow down as they approach the far...
View full post »

Thread 'EMF (Electromagnetic Field) & EHS (Electromagnetic Hyper Sensitivity)'

Hello dear reader, a brief introduction: Some 4 years ago someone started developing health related issues, apparently due to exposure to RF & ELF related frequencies and/or fields (Magnetic). This is currently becoming known as EHS. (Electromagnetic hypersensitivity is a claimed sensitivity to electromagnetic fields, to which adverse symptoms are attributed.) She experiences a deep burning sensation throughout her entire body, leaving her in pain and exhausted after a pulse has occurred...
View full post »

Similar threads

Is There an IC for Instant On-Delay Off Circuits?
Replies
7
Views
2K
Is There a Commercial IC to Monitor Data on a RAM Chip?
Replies
8
Views
2K
Calculate IC equalizer frequencies and gain
Replies
1
Views
1K
How do you make a digital counter circuit which counts to 10 minutes?
Replies
17
Views
3K
Is there an RFID chip that lets you add sensor input?
Replies
6
Views
3K
Help for interpreting Opamps on a schematic
Replies
14
Views
3K
Using delicate 5V IC to toggle 12V device with MOSFET, Diode, resistor
Replies
8
Views
1K
Laplace transform vs phasor analysis in circuit analysis
Replies
3
Views
2K
Understanding BJT Common Collector Circuit: Voltage and Saturation Explanation
Replies
10
Views
2K
Linear moving switch, decade counter, chaser
Replies
49
Views
4K

Hot Threads

Recent Insights

Back
Top