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What are bipolar logic families?

What are bipolar logic families?

Bipolar logic families are classified as belonging to either saturated or non-saturated logic families. In saturated logic, the transistor is switched between the off and saturation regions, while in non-saturated logic, the transistor is switched between the off and active regions.

What is bipolar and unipolar logic family explain in detail?

Unipolar means only one polarity. It mainly uses Unipolar devices like MOSFETs in addition to passive elements like resistors and capacitors. These logic families have the advantages of high speed and lower power consumption than Bipolar families. These are classified as: i) PMOS or P-Channel MOS Logic Family.

What do you understand by the term logic family?

A logic family of monolithic digital integrated circuit devices is a group of electronic logic gates constructed using one of several different designs, usually with compatible logic levels and power supply characteristics within a family. Some such logic families use static techniques to minimize design complexity.

Which logic families are based on bipolar transistors?

The following sections are included:

  • Diode logic.
  • The bipolar junction transistor (BJT) and related logic families.
  • The digital inverter and the resistor-transistor logic (RTL) family.
  • The diode-transistor logic (DTL) family.
  • The transistor-transistor logic (TTL) family.
  • The emitter-coupled logic family (ECL)

Which logic family is fastest?

Emitter-coupled logic
Emitter-coupled logic (ECL) is a BJT-based logic family which is generally considered as the fastest logic available. ECL achieves its high-speed operation by employing a relatively small voltage swing and preventing the transistors from entering the saturation region.

Which logic family is best?

Features of Logic Families

  • TTL – Transistor-Transistor Logic: Standard logic family; used for the longest time.
  • ECL – Emitter Coupled Logic: Suitable for systems requiring high-speed operations.
  • MOS – Metal Oxide Semiconductor Logic: Suitable for systems with high component density.

Which is fastest logic family?

Which logic gate is faster?

3 Answers. ECL is both the fastest logic family and has the simplest internal structure of modern logic families, but like other bipolar-only families it has a not insignificant power draw.

Which logic family has highest noise margin?

Logic Family Noise Margin

VOH Margin
LVTTL [3volt] 2.4v 400mV
LVCMOS [3 volt] 2.8v 600mV
CMOS [2.5v] 2.0v 300mV
CMOS [1.8v] 1.35v 210mV

Which is slowest logic family?

However, CMOS is slowest among the given logic family because of the high input impedance (i.e., due to SiO2) takes more time for charging and discharging.

What is the major advantage of CMOS logic?

The main advantage of CMOS logic family is their extremely low power consumption. This is because there is no direct conducting path from Vdd to ground in either of input conditions. So there is practically zero power dissipation in STATIC conditioms.

What makes bipolar logic different from other logic families?

Bipolar means two polarity. It mainly uses bipolar devices like diodes, transistors in addition to passive elements like resistors and capacitors. Bipolar logic families classified as Saturated bipolar logic family and Unsaturated bipolar logic family. In this family the transistors used in ICs are driven into saturation.

How are different logic families compatible with each other?

Different ICs belonging to the same logic families will be compatible with each other. The basic Classification of the Logic Families are as follows: A) Bipolar Families B) MOS Families C) Hybrid Devices A) Bipolar Families: 1. Diode Logic (DL) 2. Resistor Transistor Logic (RTL) 3. Diode Transistor Logic (DTL) 4. Transistor- Transistor Logic (TTL)

What are the Study Notes on logic families?

In this article, you will find the Study Notes on Logic Families which will cover the topics such as Integrated Circuits, Characteristics of digital circuits, Logical Families, Digital IC terminology, DL, RTL, DTL, and TTL. 1. Integrated Circuits

Which is the best example of a unipolar logic family?

Schottky TTL is combination of schottky diode and transistor. Emitter-coupled logic (ECL) is a high-speed IC bipolar transistor logic family. ECL is sometimes called current-steering logic (CSL), current-mode logic (CL) or current-switch emitter-follower (CSEF) logic. Unipolar means only one polarity.