ECL proved to be very useful in analytical applications as a highly sensitive and selective method. In my experience, when I ask what is electronics there is a tendency for many ones... 8085 Microprocessor Lab Viva Questions With Answers 1. It combines analytical advantages of chemiluminescent analysis (absence of background optical signal) with ease of reaction control by applying electrode potential. What are the important CPU registers in the 8085 microprocessor? ECL stands for Emitter Coupled Logic. ECL uses an overdriven BJT differential amplifier with single-ended input and limited emitter current to avoid the saturated (fully on) region of operation and its slow turn-off behavior. However, currently CMOS chips are available with much higher speed than that of … Dynamic concentration response and sensitivity, the requirement of fewer samples, and easy handling are the major advantages of ECL. Typical speed of ECL gates lie in the range of few GHz. For example, developing a blot with ECL over time intervals like 1, 5, 10, 20, and 60 min (total time 96 minutes) gives an increasing signal intensity, but then the signal decreases. • Very low noise-margin (±200 mV). ECL is based on use of current steering switch realised using differential transistor pair. Emitter Coupled Logic (ECL) Complementary Metal Oxide Semiconductor Logic (CMOS) Let’s look at each family’s design according to their characteristics, advantages, disadvantages, and use. Advantages of Electrochemiluminescence: High sensitivity:Multiple excitation cycles can amplify signals to enhance light levels. ECL take into account the amount and timing of payments, therefore a credit loss arises even if the entity expects to be paid in full but later than when contractually due (IFRS 9.B5.5.28). Emitter-coupled logic is the fastest of all digital logic families. This power consumption figure is higher compare to both TTL and CMOS. Noise immunity was the main reason for using a negative supply voltage with the early ECL gates. This page covers advantages and disadvantages of ECL. • Highest power dissipation among all logic gates. No radioisotopes are used. Advantages and Disadvantages of other wireless technologies. • VLSI design is difficult as ECL gates require resistors also to be fabricated. The Bio-Rad ECL system extends the signal duration to 24 hours, permitting reimaging without loss of signal intensity. An expected credit loss (ECL) is the expected impairment of a loan, lease or other financial asset based on changes in its expected credit loss either over a 12-month period or its lifetime:. Luminol has an emission half-life of less than a minute. The noise margin of ECL gates can be computed as given below: on: "Advantages and Disadvantages of ECL Gates". As such, ECL has several advantages over CL, in particular, the electrochemical reaction allows the time and position of the light-emitting reaction to be carefully controlled; control over the time means the light emission can be delayed until specific The submitter asked whether the cas… In electronics, emitter-coupled logic (ECL) is a high-speed integrated circuit bipolar transistor logic family. A definitive advantage of the ECL Plus™ reagents over standard ECL reagents is the extended signal duration. Following points summarize ECL disadvantages over TTL and CMOS: Because of the unique advantages of high selectivity, ultra-sensitivity, and good reproducibility, ECL nanosensors can open new paths for cancer diagnosis. Difference between SISO and MIMO Following points summarize ECL advantages over TTL and CMOS: ➨It has fanout of 25 which is better than TTL and less then CMOS. • In ECL logic family, logic 0 is represented as about -1.75 V and ECL is considered to be a very high-speed logic family. It mentions ECL advantages and ECL disadvantages over TTL and CMOS. (i). • Parameters do not vary much with temperature. Disadvantages of ECL. 5. Dr. B Somanathan Nair, one of the top engineering text book author of India. Description and Characteristics. difference between OFDM and OFDMA Although similar in many respects to the traditional ELISA method, the Meso Scale Discovery platform (MSD-ECL) uses non-radioactive electrochemiluminescent labels for ultra-sensitive detection, yielding higher sensitivity and broader dynamic range, all at lower sample volumes. But the disadvantage of ECL logic families is that it uses a negative power supply such that the logic levels are not compatible with any other logic family and makes analysis and measurement inconvenient. Worst noise immunity compared to TTL and CMOS (ii). (d). We will incubate the membrane for 3-5 minutes without agitation. The advantages of using Bio-Rad HRP substrate-based ECL include: Sensitive detection at the femtogram level • Typical supply voltage is –5.2 V. ➨It has power per gate of about 4 to 55 mW. Benefits Here we are going to discuss about what is electronics. IFRS 9 Scenario and Retail Portfolio Strategy, October 24 th, 2017 6 “An entity shall measure ECL of a financial instrument in a way that reflects an unbiased and probability- weighted amount that is determined by evaluating a range of possible outcomes.” (5.5.17) “When measuring ECL, an entity need not necessarily identify every possible scenario. Following points summarize ECL advantages over TTL and CMOS: 6. • The number of functions available from a single chip is high. • ECL gates produce complementary outputs (OR-NOR). There is no OFF-state for the ECL gates to reduce power loss. In this section of Digital Logic Design - Digital Electronics - Logic Families and Circuits MCQs (Multiple Choice Questions and Answers),We have tried to cover the below lists of topics.All these MCQs will help you prepare for the various Competitive Exams and University Level Exams. He was born on September 1, 1950 in Kerala, India. The design of ECL circuit consists of transistors and resistors. Disadvantages of ECL Gates Years ago when modelers switched from ignition to glow engines they did so because glow engines offered significant advantages. The type of enhancer used can also increase the signal duration. We start by mixing equal parts ECL reagents in a one to one ratio according to the manufacturer’s instructions. 12-month expected credit losses (12-month ECL) – Expected credit losses resulting from financial instrument default events that are possible within 12 months after the reporting date; or Excellent sensitivity, comparable to EIA and RIA. Introduction. Rajosik Banerjee Partner Financial Risk Management Sai Venkateshwaran Partner and Head FDM vs TDM • Current switching spikes are not present in power supply leads. What is … C) very short propagation delay times. ECL eliminates saturation and improves speed but uses more power than other logic families such as TTL and CMOS. More than 150 different types of immunoassays are available in the market for the detection of tumor and infectious diseases (Ge et al., 2012; Parveen et al., 2013). As the current is steered between two legs of an emitter-coupled pair, ECL is sometimes called current-steering logic (CSL), current-mode logic (CML) or current-switch emitter-follower (CSEF) logic. difference between TTL ECL and CMOS Briefly discuss about a transistor? The reagents are stable and relatively nontoxic. Advantages of ECL: 1. Explain. 3. IFRS 9:B5.5.55 requires the inclusion of cash flows expected from collateral and other credit enhancements in the measurement of ECL if the credit enhancements are part of the contractual terms and are not recognised separately by the entity. Has a fan-out better than the TTL Logic family; Offers the highest speed in operation; ECL systems produce complementary outputs (OR-NOR, AND-NAND). It is also called as current mode logic. The modern optical f... Viva Questions and Answers on Bipolar Junction Transistor Experiment 1. Applications and Advantages of MRI over CT Scan, Magnetic Resonance Imaging (MRI) Scan Test, Computerized Axial Tomography How it Works, Advantages and Disadvantages of Ultrasonography, Integrated Injection Logic Circuit Diagram, Advantages and Disadvantages of ECL Gates, Optical Communication Lab - Viva Questions, Bipolar Junction Transistor (BJT) Viva Questions and Answers, Electronics and Communication Study Materials.
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