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94 Threads found on Level Translator
Hi, I am working on a logic circuit will be near to a high power switching device (hundreds of Amps). I wonder level translator and logic gates in 15V logic level such as HEF4104, how much is immune to the noises and radiation. thank you.
Hi, If one device needs 5V, then use a 5V voltage regulator. If another device needs 3.3V, then use a 3V3 regulator. But usually you have signal lines when those two devices communicate with each other. Then you need level translators. Klaus
Sounds like you are driving FPGA SDA line not correctly as open drain. You say the I2C slave is driving SDA low but only reaches 0.7 V. What's the voltage on both sides of the level translator in this situation? What's the high level?
Hello, I'm trying to connect mcp2515 to LinkIt ONE board(compatibile with Arduino). I'm using LinkIt ONE(digital pins operates at 3.3v) + level translator(TXB0108PWR) + CAN module with MCP2515 and TJA1050 on board. I cannot fully determinate whether my initializations goes wrong or good. Each time I read register value it returns different respon
The output signal polarity (default P1.0 high level is activating the power) might re-enable the power supply during switch-off. You should change the circuit to use active low level for power on. A NPN in common base circuit can be used as non-inverting level translator.
Is there an CMOS voltage translator or level shifter that works with the input voltage outside of power supply range? My power supply is 1.2V but the input voltage ranges from -0.4V to 1.3V. I want to shift the input voltage to some level that is within the power supply range. Thank you.
Look at the required logic levels... you may need a level translator, and a separate PSU if you need to generate 3V3 for the USB board.....
Transceiver is a device that can be used for transmit and recieving of data. Thus, two components that do not have a tri-state output can be connected together and commmunicate without contention on a bus. If level translation is required since the two devices work at different power supply voltages, this must be done to prevent device damage. I
Hi I am working with TXB0106 level translator (datasheet). While doing design, I came across page 12 in which an architecture of an I/O cell is displayed as shown below. 123267 In page 14, it's stated that during output transition from high to low, and vice v
Hi all... I am working on a project which required 7"TFT screen. I found many types of tfts with parallel interface (16/8bit). and some TFT panels also. my question is > if I am using a 3.3V display , is there any level translator is necessary to interface? >>is there any available solution to plug the TFT panel directly to arduino? >>>IS
Hi All, Fairchild FDV301 has Vth(max) at 1.06V I should be able to use it to reliably convert 1.8V LVCMOS level to 3.3V. Is that correct? Thank in advance for all help.
Hello, I am looking for high-speed level shifter or level converting latch or level converting flip-flop. With high-speed operation ~ 3GHz. Please give me any suggestion. Thank you and have a nice day.
Using a logic level serial link is prone to pick up electrical noise but should basically work, at least most of the time. If it doesn't work at all, there's probably a problem in your hardware or software, not related to using logic level interface. In other words, a problem that can't be read from your posts.
1) You're going to need a level translator to go from TTL to CML 2) Your microcontroller is not going to work with 1GBPS data unless it has an internal PLL or some other way to increase its internal frequency. 3) So you don't a level translator after all.
Can the 3v3 power supply source supply enough current to the board (about 350mA bursts I think) Which version of esp8266 board do you have and what firmware does it run? Are you using a 5v to 3v3 level translator? (assuming 5v AVR) Is GPIO pin 2 pulled up? Are you able to connect to the wifi using a serial terminal commands from the PC?
I don't know about ZigBees but I have used XBee Pro. There is a configuration software which can be used to set the baudrate of XBee. XBee's work at 3.3V and hence need Voltage level translator to connect to PIC which work at 5V.
Simulation shows that input audio amplifier will work OK. Pre-emphasis cap 1.5nF will give 50us (40us now). Simulation with TL071 shows useless gain/frequency characteristics. It seems that amplifier design perfectly suits to LM741 OPA. Between 74ls390 and 4027 is level translator which enables triggering CMOS FF from 5V TTL. MPX filter has no
Any time you specify voltage, high speed and logic, one also needs to specify impedance of source, load , capacitance and current. The fanout requirements for 1 gate load are trivial compared to level translator for a clock driver with 20 loads. The slew rate of your Op Amp is probably the limiting factor in your design. CMOS is a much bet
Is it ok if I replace 5V directly to 13.6V and drive the transistor from MCU ? 0V from MCU = active. No, this doesn't work. You need a level translator, an additional NPN transistor can do the job. Either in CE configuration (inverting) or in CB configuration (non-inverting).
It would appear to be some sort of common-base level translator. 0V at the emitter input (transistor off) gives 5V at the collector output. A sufficiently negative voltage at the emitter input (transistor on) gives 0V (or a slightly negative voltage) at the collector output.
Edit: Title incorrect, this regards a 32MHz clock I am designing an embedded system with multiple devices and am trying to make the clock/oscillator system as simple as possible. One of my devices I am going to run off of a 32Mhz clock around Vdd (3.55V). Another device also requires 32MHz but can only tolerate 1.8V. Can I do this simply with
I am building a project using a type of RS232 level translator that runs on just +5 Vdc. The actual part is a Sipex/Exar SP207HCP, but I guess my question would apply to any similar IC that use charge pumps to build up the RS232 level voltages. My Question is, must I used polarized capacitors as the charge pump capacitors ? (...)
Voltage dividers for the inputs, level translator (transistor? gate?) for the output. Something like this might help
Is the solution provided in the image good? I don't reconize a solution, neither a clear problem specification. At first sight, a transimpedance amplifier will short an input voltage, so how is the "level translator" supposed to work? Generally, a current source (sensor with current output, e.g. 0 - 20 mA) generates a voltage
If the voltage levels of SIM900 and STM32 doesn't match then you need to use bi-directional level translator.
A TTL output high is only about +3.5V. A Cmos IC operating from a supply as high as 18V needs an input high that is at least +13.2V. Orcad might not know this. So you need a level translator circuit to boost +3.5V to +13.2V.
My application requires that I convert 14V digital signals to 3.3V signals. I think that level translators will help. But I am not able to find a high voltage level shifter. Please suggest me any IC. Regards, VION
Hi., Please see this link. in details section..... level Shifting Pericom offers great chip-to-chip interface between different I/O voltages ranging from 1.5/1.8/2.5/3.3 V to 5 V, and 0.8 V to 2.5 V. These translators are scalable from 16-bit to 32-bits
hello, do you have datasheet of your xbee module ? mainly xbee module can be directly connected to a microcontroler but the level can be TTL or CMOS 5V or 3,3V. it depends also of your Micro ,powered in 5V or 3,3 or 3,6V. you may have to adapt level by resistor diviseur or circuit for level translator.
GaAs switches typically operate with 3 v gate drive to minimize ON resistance. You may see level translator for digital control to provide 1.8 v logic control. 3 v isn't much of an issue as the power drain is small.
Actually we all assumed that this level translator was for an mcu input to connect an external 5v signal to a 3.3v capable mcu input but reading all the previous posts I see that this is not clear so the user may be actually asking to lower the 5v output or an mcu pin to 3.3 to drive some external device. I guess we need some clarificatio
Hi, could you advise me some voltage level translator 3.3/1.8 V which could work in 50 MB mode -> 100 MHz -> 100 Mbps on one line. I found ti txb0108, is it ok? Regards Tim
A level translator will be useful in getting the signal right. We cannot say how noise margin changes in a system. First of all are they both grounded perfectly.
You are asking for a bidirectional level translator right? The optocoupler will not do what you want.
Why don't you use a known working level translation circuit?
No u dont need any just take care u using positive side of lm output. u may need level translator (can be a chip or resistor and scotkey zener diode ) depending of lm output
generally speaking,high-level edition can convert to low-level edition,but it is difficult for you to convert them opposite.
How do I transition from VDD 1.8 to VDD 5? You need a level translator = voltage shifter, see here e.g. Can I just change the body connection of the B to use VDD1.8 bias ins
A voltage translator is used between two devices with different signal level, for example a 3v device and a 5v device, it translated the signal from one level to the other so the devices can communicate. A voltage regulator can regulate the output to the specified voltage , it is usually referred to a power supply. Alex
To connect 8051 with RS232 you need something like MAX232, MAX202, or similar, that is you need an inverter/level translator, not the CD4066 which is just a switch and therefore it is useless in this application .. :wink: IanP
you can't connect the UART of the AVR directly to the PC, you need to use a level translator like MAX232 >>> Simple Case AVR/PC Serial Communication via MAX232 ? Alex
I append my circuit and signal response as below. D15 was injected with 3.3V pulses from DSP (Blue). The output is in Red was from Spare4 line. Q1) Why the ouput pulses does not settle to 0 Volt? Is my circuit correct? Q2) Why the output pulses have ripples? Is there a way to solve the problems?
From the datasheet of TXB0108 If pullup or pulldown resistors are connected externally to the data I/Os, their values must be kept higher than 50 kΩ to ensure that they do not contend with the output drivers of the TXB0108. For the same reason, the TXB0108 should not be used in applications such as I2C or 1-Wire where an open-drain dr
for level translator yo can use the mosfet solution shown 5V-3.3V bidirectional level converter ? rocketnumbernine d.holmes > hardware > simple bus level-shift For the 4v power supply you will probably n
The datasheet says 3.3v on-board regulator and 5 V to 3.3 V logic translator buffers, the 5 to 3.3v has to do with the digital input level. The Power Requirements are 5 VDC I don't think you should use a lower voltage and you may also have problems with the input buffers if you do. Alex
You mean the digital pulses have low level and you want to use a level translator? The two way I know are with a mosfet of transistor, I don't think you will be able to control a jfet with 1.5v. For the mosfet case you need to select a model with a very low gate threshold voltage of about 1v but I think you can easily use any small (...)
This will do: Logic level Converter - SparkFun Electronics
you need a level translator max232 IC... check if you have this IC on the board... connect the serial cable to your kit and PC and set the parameters on the terminal as 9600 baud rate, 8 data bit, 1 stop bit and no parity and hardware control as none..wrtie a small program to receive data from serial port and store it in 2 variables and do the requ
As I can see from the dayasheet, you will need a "level translator" chip since the transceiver UART levels are CMOS 3.3V You will need a MAX232 to interface the transceiver to the PC, and you will need a 3.3V to 5V level translator in case your controller is working with 5V. www.r
The simple analog way is to use an op amp (OTA) to drive a source follower that has a resistor tail, closing the loop on the resistor such that I=Vin/R. That I can be shipped down to the ground referred side through as many cascode levels as you need. You push that current into an identical resistor (presuming your drawn resistor at two backg