74AC520PC

Series:	74AC
Packaging:	Tube
Part Status:	Obsolete
Type:	Identity Comparator
Number of Bits:	8
Output:	Active Low
Output Function:	A=B
Voltage - Supply:	2 V ~ 6 V
Current - Output High, Low:	24mA, 24mA
Max Propagation Delay @ V, Max CL:	9ns @ 5V, 50pF
Current - Quiescent (Iq):	4µA
Operating Temperature:	-40°C ~ 85°C
Package / Case:	20-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Base Part Number:	74AC520

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74AC520PC Introduction

The 74AC520PC is a low-power, high-speed, low-capacitance CMOS Comparator designed for usage in a variety of applications. 74AC520PC is designed for direct interfacing for signal levels commonly used in TTL and CMOS levels with power dissipation usually less than 500mW.

Features

The 74AC520PC has many features that makes it attractive for a variety of applications. These include:

• High Speed (tTL / CMOS compatible inputs, output in 387ns at VDD = 5V)
• Low Quiescent Power Dissipation (maximum of 500MW)
• Inputs can be Pulled Down to GND
• Low Output “OFF” Resistance (100Ω at VDD=5V)
• High Input Impedance (1MΩ)
• Low Input Offset Voltage (±1mV)
• Minimum Propagation Delay Differential Input To Output (387ns @ VDD = 5V)
• Output Is Open-Collector with Current-Limiting Resistor

Application Fields and Working Principle

The 74AC520PC has wide range of applications and can be used for a variety of purposes. The most popular uses for the 74AC520PC include:

• Level converter
• Addressing system
• Logic circuits and microprocessors
• Data bus switching
• Signal conditioning
• Clock and Data Recovery
• Servo control systems

The 74AC520PC Comparator works by comparing two input voltage levels and then amplifying the output so that the comparator can be used to create logic systems. It works by taking an input voltage A and input voltage B, comparing them, and then outputting a logic signal (0 for A > B, and 1 for A < B). The output signal of the comparator is usually used as an input for other logic systems and can be used to control the direction of information flow in larger systems. The 74AC520PC uses a high input impedance which allows it to respond faster when input voltages change and still maintain accuracy. This makes the 74AC520PC an ideal choice for high-speed applications such as clock and data recovery systems. The comparator also consumes very little power, another plus for applications where low power applications are desired.

Conclusion

The 74AC520PC low-power, high-speed, low-capacitance CMOS Comparator is a great choice for a variety of applications. It is designed for direct interfacing with TTL and CMOS levels, has a high input impedance for fast response times, and low power dissipation. It also has a low output resistance and offset voltage which makes it suitable for applications that need precision. Because of its features, the 74AC520PC is often used for multiple applications such as logic circuits, data buses, servo control systems, and signal conditioning.

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