Which is the best MOSFET for a level translator?
Basic level translator. With VL being 1.8V or even lower, the choice of suitable MOSFETs with a low enough VGS threshold voltage is rather limited. One candidate might be the TN2501 from Supertex.
Which is the level translator for the I²C Bus?
The MAX3390E level translator in an SPI-bus application. Figure 6 shows a similar application with an I²C-bus. The MAX3373E dual level translator is used to interface the µP I/O levels to the I²C-compatible interface of the MAX1236 (4 channel 12 Bit ADC).
What is the I2C bus and what does it do?
The I2C bus is a standard bidirectional interface that uses a controller, known as the master, to communicate with slave devices. A slave may not transmit data unless it has been addressed by the master. Each device on the I2C bus has a specific device address to differentiate between other devices that are on the same I2C bus.
What kind of resistors do I need for a level translator?
MAX3373E dual level translator used in an IIC-bus application with optional pull-up resistors RPP. Depending on the number of devices on the bus, optional pull-up resistors R PP might be required. The MAX3372E-MAX3393E family of level translators has internal 10kΩ pull-up resistors.
How is the max3390e level translator for SPI-bus signals?
The supply voltage for the analog front-end is 5V, the low-power µP has a supply of 2.5V. The MAX3390E level shifts the SPI signals from 2.5V to 5V and from 5V to 2.5V for the D OUT signal. Figure 5. The MAX3390E level translator in an SPI-bus application. Figure 6 shows a similar application with an I²C-bus.
Which is the best serial interface for level translators?
The most popular serial interfaces are I²C and SPI™. If a system has different supply voltages for the µP and for peripheral devices, suitable level translators are required to be able to use one of these serial interfaces.