Dec 7, 2021 · The open-drain technique is used to establish communication between multiple devices bi-directionally on a single wire. Is open-drain high impedance? When the device does not use a bus, then the output of the open collector is in high impedance.

Open collector, open drain, open emitter, and open source refer to integrated circuit (IC) output pin configurations that process the IC's internal function through a transistor with an exposed terminal that is internally unconnected (i.e. "open").

Sep 30, 2016 · if drain terminal of an nmos is open and source terminal is connected to 1v+ and the gate is also biased to a positive voltage, the Id=0 and Vds=0. can anyone explain? especially "Vds=0" I thought...

This Article Discusses about What is an Open Drain, Its Input/Output Configuration, Comparison with Push-Pull, Open Drain Mosfet and I2C.

When a channel exists in a MOSFET, current can flow from drain to source or from source to drain - it's a function of how the device is connected in the circuit. The conduction channel has no intrinsic polarity - it's kind of like a resistor in that regard.

Dec 23, 2009 · usually in circuit design an interrupt signal is through an open drain nmos. In applications a pullup resistor is connected on this open drain to indicate an interrupt. I would like to know how does this open drain NMOS works.

Mar 27, 2024 · I'd like to draw as little current from the +5V line as possible without distorting the signal but I'm not sure what the best choice is, a small signal mosfet like 2N7002H has very low gate capacitance so the rise time is probably acceptable with a 10k pull-up or even higher.

Jul 1, 2020 · Open drain outputs consist of NMOS transistors with their drains connected to the pin. On the board a termination resistor or pull-up resistor is connected between the pin and the power supply and this completes the path from power to ground, via the transistor.

Jul 5, 2022 · The Nch FET is a common-gate Vg = high with PG driving the source, Vs with an open drain. This prevents any latchup effects to driving high any CMOS input with a Vdd lower than 0.5V below the active high.

Open-Drain Output. An open-drain output can only sink current in the low state. In modern CMOS devices, the most common configuration for an open-drain output is shown here: