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Hi Guys, I'm trying to design the op amp in the attached article. I'm using 100uA current source and I'm trying to make a bias circuit in order to make all transistors in saturation and I don't know how to make that. 157100 157101 157102 157103[/A
I am using DSP controller TMS320F28069 to make my own development launchpad Board. I have used the reference of XDS100V2 Jtag Schematics to design my on-board programmer in that development board. I have printed the PCB but when I went to program my controller via on-board Programmer, my code composer studio stuck everytime I tried to program the c
Here is what appears to be some sort of a folded cascode amplifier, but does not really match with any classic text book example. Does it make sense to you guys? 156931
Dear All, I'm planning on using a transistor to drive a 75 Ohm coaxial line (RG6) with just a digital signal. From collector to vdd there will be a 75 Ohm resistor. The signal at the collector is than AC-coupled onto a RG6 coaxial cable. At the end of the long cable (100m, neglect the attenuation for now) there is a 75 Ohm termination. So if
156807 I need some help to design this circuit in ADS and reproduce the corresponding S parameter graph. FET model is NE3210S01. I have tried multiple times but not getting the result. vdd =0.4 V. I_DD=30 ma.
Dear friends, I have designed the same circuit shown below, . the circuit use two common mode feedback circuits, the first one that adjust the common mode voltage between o1p and o1m while the second one is not shown but it is contrroling the output voltages vo1 and vo2. I have no issue of the outer common mode voltage as the common mode vol
In this simulation (I am using multisim 14.0), the output voltage value (measured from XMM1) multimeter is: ~0V when S1 is on vdd ~0V when S1 is on GND 3.3V when S1 is on VSS 156803 But, if I make this circuit on Breadboard whit a real VP0
In ASIC design, is there any relation between IR drop and Noise Margin ? and If yes, then how?
Hello there, I'm curious why the PN junction of a BJT transistor is still used as the CTAT voltage in a reference circuit (bandgap), while a MOSFET threshold voltage also has CTAT behavior? Is it because the BJT has exponential behavior while the MOSFET is just the square of the voltage? Why is the BJT better? Thanks
Dear friends, in the circuit shown below, the output cascode stage of the folded cascode amplifier has two miror, one up and one down, and there is no current source, how the current is then being defined to 2 Ib? we usually have in the output cascode one mirror and the other side is current source Thank you 156402
Dear friends, I am designing the circuit shown in the figure below, In my first design I didn't use the source floower transistors MT1 and MT2, thus I gout a high current at the output stage (1.3mA). It was explaned by Allen holberg that the use of the source follower is to shift the dc level to the output stage so VSG6= VSD4, comparing without
Hi, how power switches are connected to standard cells in the design? how they are connected logically?
In the circuit, I want to compare the voltage reference Vref and source voltage vdd. It is necessary to make Vref change with vdd, which means a constant voltage is supposed to connect between this two voltage. But I have no idea what structure can achieve this.
In the circuit, I want to compare the voltage reference Vref and source voltage vdd. It is necessary to make Vref change with vdd, which means a constant voltage is supposed to connect between this two voltage. But I have no idea what structure can achieve this.
In the circuit, I want to compare the voltage reference Vref and source voltage vdd. It is necessary to make Vref change with vdd, which means a constant voltage is supposed to connect between this two voltage. But I have no idea what structure can achieve this.
Hello everyone, I need some help in designing a DAC. To my understading aftre going through I drew this block diagram(attachement). They are few questions I couldn't able to sort it out 1. How to decide the resolution of DAC? 2. I am thinking of using split array charge scaling architecture. Is it going to be better option considering layout
Hi, If I want to take Capacitance effects of ESD and bond pad in the design. Where should I connect these capacitances, at every pin in the schematic?. Also, Where exactly ESD protection circuit is connected, only at the input? Thanks
Hi all, I have recently done layouts of some analog blocks such as op-amps, current source etc. Upon getting them reviewed by an experienced individual from the industry, I recieved the following comments: 1) Do not share source/drain terminals and instead use multipliers. 2) Do not share dummy transistor source/drain. Instead keep minimum
There are on die power gating cells, connect to vdd or VSS. How about their voltage drop? How dose they affect the circuit timing closure? Can anyone give me some clue?
156268 From the Spec, we can see the VIH and VIL has the relation ship with vdd. My question is that vdd may be different in worst, best and typical case, such as 0.9V,0.7V and 0.8v. Is VIH or VIL different in these three case or just use the typical vdd 0.8v? Thanks